{"type": "FeatureCollection", "features": [{"id": "10.5194/bg-15-1933-2018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2017-11-21", "title": "Straw incorporation increases crop yield and soil organic carbon sequestration but varies under different natural conditions and farming practices in China: a system analysis", "description": "<p>Abstract. Loss of soil organic carbon (SOC) from agricultural soils is a key indicator of soil degradation associated with reductions in net primary productivity in crop production systems worldwide. Simple technical and locally appropriate solutions are required for farmers to increase SOC and to improve cropland management. In the last 30 years, straw incorporation has gradually been implemented across China in the context of agricultural intensification and rural livelihood improvement. A meta-analysis of data published before the end of 2016 was undertaken to investigate the effects of straw incorporation on crop production and SOC sequestration. The results of 68 experimental studies throughout China in different edaphic, climate regions and under different farming regimes were analyzed. Compared with straw removal, straw incorporation significantly sequestered SOC (0\uffe2\uff80\uff9320\uffe2\uff80\uff89cm depth) at the rate of 0.35 (range 0.31\uffe2\uff80\uff930.40)\uffe2\uff80\uff89Mg C\uffe2\uff80\uff89ha\uffe2\uff88\uff921\uffe2\uff80\uff89yr\uffe2\uff88\uff921, increased crop grain yield by 13.4\uffe2\uff80\uff89% (range 9.3\uffe2\uff80\uff89%\uffe2\uff80\uff9318.4\uffe2\uff80\uff89%) and had a conversion efficiency of the applied straw-C as 16\uffe2\uff80\uff89%\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff892\uffe2\uff80\uff89% across the whole of China. The combined straw incorporation at the rate of 3\uffe2\uff80\uff89Mg C\uffe2\uff80\uff89ha\uffe2\uff88\uff921\uffe2\uff80\uff89yr\uffe2\uff88\uff921 with mineral fertilizer of 200\uffe2\uff80\uff93400\uffe2\uff80\uff89kg N\uffe2\uff80\uff89ha\uffe2\uff88\uff921\uffe2\uff80\uff89yr\uffe2\uff88\uff921 was demonstrated to be the best combination for farmers to use with crop yield increased by 32.7\uffe2\uff80\uff89% (range 17.9\uffe2\uff80\uff89%\uffe2\uff80\uff9356.4\uffe2\uff80\uff89%) and SOC sequestrated by the rate of 0.85 (range 0.54\uffe2\uff80\uff931.15)\uffe2\uff80\uff89Mg C\uffe2\uff80\uff89ha\uffe2\uff88\uff921\uffe2\uff80\uff89yr\uffe2\uff88\uff921. Straw incorporation achieved higher SOC sequestration rate and crop yield increment when applied to clay soils, under high cropping intensities, and in areas like Northeast China where the soil is being degraded. SOC responses were the greatest in the initial starting phase of straw incorporation and then declined and finally were negligible after 28\uffe2\uff80\uff9362 years, however, crop yield responses were initially low and then increased reaching their highest level at 11\uffe2\uff80\uff9315 years after straw incorporation. Overall, our study confirmed that straw incorporation did create a positive feedback loop of SOC enhancement together with increased crop production, and this is of great practical significance to straw management as agricultural intensifies in China and other regions in the world with different climate conditions.                         </p>", "keywords": ["2. Zero hunger", "QE1-996.5", "info:eu-repo/classification/ddc/550", "Ecology", "Life", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "QH540-549.5"]}, "links": [{"href": "https://doi.org/10.5194/bg-15-1933-2018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-15-1933-2018", "name": "item", "description": "10.5194/bg-15-1933-2018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-15-1933-2018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-11-21T00:00:00Z"}}, {"id": "10.5194/bg-10-7897-2013", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2013-08-08", "title": "Net Global Warming Potential And Greenhouse Gas Intensity In A Double-Cropping Cereal Rotation As Affected By Nitrogen And Straw Management", "description": "<p>Abstract. The effects of nitrogen and straw management on global warming potential (GWP) and greenhouse gas intensity (GHGI) in a winter wheat\uffe2\uff80\uff93summer maize double-cropping system on the North China Plain were investigated. We measured nitrous oxide (N2O) emissions and studied net GWP (NGWP) and GHGI by calculating the net exchange of CO2 equivalent (CO2-eq) from greenhouse gas emissions, agricultural inputs and management practices, and changes in soil organic carbon (SOC), based on a long-term field experiment established in 2006. The field experiment includes six treatments with three fertilizer N levels (zero-N control, optimum and conventional N) and straw removal (i.e. N0, Nopt and Ncon) or return (i.e. N0, Nopt and SNcon). Optimum N management (Nopt, SNopt) saved roughly half of the fertilizer N compared to conventional agricultural practice (Ncon, SNcon) with no significant effect on grain yields. Annual mean N2O emissions reached 3.90 kg N2O-N ha\uffe2\uff88\uff921 in Ncon and SNcon, and N2O emissions were reduced by 46.9% by optimizing N management of Nopt and SNopt. Straw return increased annual mean N2O emissions by 27.9%. Annual SOC sequestration was 0.40\uffe2\uff80\uff931.44 Mg C ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921 in plots with N application and/or straw return. Compared to the conventional N treatments the optimum N treatments reduced NGWP by 51%, comprising 25% from decreasing N2O emissions and 75% from reducing N fertilizer application rates. Straw return treatments reduced NGWP by 30% compared to no straw return because the GWP from increments of SOC offset the GWP from higher emissions of N2O, N fertilizer and fuel after straw return. The GHGI trends from the different nitrogen and straw management practices were similar to the NGWP. In conclusion, optimum N and straw return significantly reduced NGWP and GHGI and concomitantly achieved relatively high grain yields in this important winter wheat\uffe2\uff80\uff93summer maize double-cropping system.                         </p>", "keywords": ["0301 basic medicine", "2. Zero hunger", "QE1-996.5", "0303 health sciences", "Ecology", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "7. Clean energy", "6. Clean water", "12. Responsible consumption", "03 medical and health sciences", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-10-7897-2013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-10-7897-2013", "name": "item", "description": "10.5194/bg-10-7897-2013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-10-7897-2013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-08-08T00:00:00Z"}}, {"id": "10.5194/bg-17-3903-2020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2020-07-31", "title": "Leaf-scale quantification of the effect of photosynthetic gas exchange on \u0394&lt;sup&gt;17&lt;/sup&gt;O of atmospheric CO&lt;sub&gt;2&lt;/sub&gt;", "description": "<p>Abstract. Understanding the processes that affect the triple oxygen isotope composition of atmospheric CO2 during gas exchange can help constrain the interaction and fluxes between the atmosphere and the biosphere. We conducted leaf cuvette experiments under controlled conditions using three plant species. The experiments were conducted at two different light intensities and using CO2 with different \uffce\uff9417O. We directly quantify the effect of photosynthesis on \uffce\uff9417O of atmospheric CO2 for the first time. Our results demonstrate the established theory for \uffce\uffb418O is applicable to \uffce\uff9417O(CO2) at leaf level, and we confirm that the following two key factors determine the effect of photosynthetic gas exchange on the \uffce\uff9417O of atmospheric CO2. The relative difference between \uffce\uff9417O of the CO2 entering the leaf and the CO2 in equilibrium with leaf water and the back-diffusion flux of CO2 from the leaf to the atmosphere, which can be quantified by the cm\uffe2\uff88\uff95ca ratio, where ca is the CO2 mole fraction in the surrounding air and cm is the one at the site of oxygen isotope exchange between CO2 and H2O. At low cm\uffe2\uff88\uff95ca ratios the discrimination is governed mainly by diffusion into the leaf, and at high cm\uffe2\uff88\uff95ca ratios it is governed by back-diffusion of CO2 that has equilibrated with the leaf water. Plants with a higher cm\uffe2\uff88\uff95ca ratio modify the \uffce\uff9417O of atmospheric CO2 more strongly than plants with a lower cm\uffe2\uff88\uff95ca ratio. Based on the leaf cuvette experiments, the global value for discrimination against \uffce\uff9417O of atmospheric CO2 during photosynthetic gas exchange is estimated to be -0.57\uffc2\uffb10.14\uffe2\uff80\uff89\uffe2\uff80\uffb0 using cm\uffe2\uff88\uff95ca values of 0.3 and 0.7 for C4 and C3 plants, respectively. The main uncertainties in this global estimate arise from variation in cm\uffe2\uff88\uff95ca ratios among plants and growth conditions.                     </p>", "keywords": ["0106 biological sciences", "0301 basic medicine", "QE1-996.5", "CARBONIC-ANHYDRASE ACTIVITY", "Ecology", "OXYGEN-ISOTOPE FRACTIONATION", "MESOPHYLL CONDUCTANCE", "Geology", "15. Life on land", "01 natural sciences", "O-18/O-16 RATIOS", "MASS-INDEPENDENT FRACTIONATION", "03 medical and health sciences", "HIGH-PRECISION MEASUREMENTS", "Life", "13. Climate action", "3-DIMENSIONAL SYNTHESIS", "QH501-531", "STABLE-ISOTOPES", "Life Science", "14. Life underwater", "TRIPLE OXYGEN", "DIOXIDE", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-17-3903-2020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-17-3903-2020", "name": "item", "description": "10.5194/bg-17-3903-2020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-17-3903-2020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-03-27T00:00:00Z"}}, {"id": "10.5194/bg-17-4961-2020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2020-10-17", "title": "Protists and collembolans alter microbial community composition, C\u00a0dynamics and soil aggregation in simplified consumer\u2013prey systems", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Microbes play an essential role in soil functioning including biogeochemical cycling and soil aggregate formation. Yet, a major challenge is to link microbes to higher trophic levels and assess consequences for soil functioning. Here, we aimed to assess how microbial consumers modify microbial community composition (PLFA markers), as well as C dynamics (microbial\u00a0C use, SOC concentration and CO2 emission) and soil aggregation. We rebuilt two simplified soil consumer\u2013prey systems: a bacterial-based system comprising amoebae (Acanthamoeba castellanii) feeding on a microbial community dominated by the free-living bacterium Pseudomonas fluorescens and a fungal-based system comprising collembolans (Heteromurus nitidus) grazing on a microbial community dominated by the saprotrophic fungus Chaetomium globosum. The amoeba A. castellanii did not affect microbial biomass and composition, but it enhanced the formation of soil aggregates and tended to reduce their stability. Presumably, the dominance of P. fluorescens, able to produce antibiotic toxins in response to the attack by A. castellanii, was the main cause of the unchanged microbial community composition, and the release of bacterial extracellular compounds, such as long-chained polymeric substances or proteases, in reaction to predation was responsible for the changes in soil aggregation as a side effect. In the fungal system, collembolans significantly modified microbial community composition via consumptive and non-consumptive effects including the transport of microbes on the body surface. As expected, fungal biomass promoted soil aggregation and was reduced in the presence of H. nitidus. Remarkably, we also found an unexpected contribution of changes in bacterial community composition to soil aggregation. In both the bacterial and fungal systems, bacterial and fungal communities mainly consumed C from soil organic matter (rather than the litter added). Increased fungal biomass was associated with an increased capture of C from added litter, and the presence of collembolans levelled off this effect. Neither amoebae nor collembolans altered SOC concentrations and CO2 production. Overall, the results demonstrated that trophic interactions are important for achieving a mechanistic understanding of biological contributions to soil aggregation and may occur without major changes in C dynamics and with or without changes in the composition of the microbial community.                     </p></article>", "keywords": ["2. Zero hunger", "570", "QE1-996.5", "Acanthamoeba castellanii", "life", "agroecosystems", "Ecology", "fatty-acid analysis", "Geology", "500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie", "04 agricultural and veterinary sciences", "stability", "15. Life on land", "01 natural sciences", "bacterial community", "diversity", "stabilization", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-17-4961-2020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-17-4961-2020", "name": "item", "description": "10.5194/bg-17-4961-2020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-17-4961-2020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-10-17T00:00:00Z"}}, {"id": "10.5194/bg-17-5263-2020", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2020-11-05", "title": "Uncertainties, sensitivities and robustness of simulated water erosion in an EPIC-based global gridded crop model", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Water erosion on arable land can reduce soil fertility and agricultural productivity. Despite the impact of water erosion on crops, it is typically neglected in global crop yield projections. Furthermore, previous efforts to quantify global water erosion have paid little attention to the effects of field management on the magnitude of water erosion. In this study, we analyse the robustness of simulated water erosion estimates in maize and wheat fields between the years 1980 and 2010 based on daily model outputs from a global gridded version of the Environmental Policy Integrated Climate (EPIC) crop model. By using the MUSS water erosion equation and country-specific and environmental indicators determining different intensities in tillage, residue handling and cover crops, we obtained the global median water erosion rates of 7\u2009t\u2009ha\u22121\u2009a\u22121 in maize fields and 5\u2009t\u2009ha\u22121\u2009a\u22121 in wheat fields. A comparison of our simulation results with field data demonstrates an overlap of simulated and measured water erosion values for the majority of global cropland. Slope inclination and daily precipitation are key factors in determining the agreement between simulated and measured erosion values and are the most critical input parameters controlling all water erosion equations included in EPIC. The many differences between field management methods worldwide, the varying water erosion estimates from different equations and the complex distribution of cropland in mountainous regions add uncertainty to the simulation results. To reduce the uncertainties in global water erosion estimates, it is necessary to gather more data on global farming techniques to reduce the uncertainty in global land-use maps and to collect more data on soil erosion rates representing the diversity of environmental conditions where crops are grown.                     </p></article>", "keywords": ["2. Zero hunger", "QE1-996.5", "550", "Ecology", "0207 environmental engineering", "500", "Geology", "02 engineering and technology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://pure.iiasa.ac.at/id/eprint/16834/1/bg-17-5263-2020.pdf"}, {"href": "http://pure.iiasa.ac.at/id/eprint/16834/1/bg-17-5263-2020.pdf"}, {"href": "https://bg.copernicus.org/articles/17/5263/2020/bg-17-5263-2020.pdf"}, {"href": "https://doi.org/10.5194/bg-17-5263-2020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-17-5263-2020", "name": "item", "description": "10.5194/bg-17-5263-2020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-17-5263-2020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-04-21T00:00:00Z"}}, {"id": "10.5194/bg-20-2785-2023", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2023-07-14", "title": "Burned area and carbon emissions across northwestern boreal North America from 2001\u20132019", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Fire is the dominant disturbance agent in Alaskan and Canadian boreal ecosystems and releases large amounts of carbon into the atmosphere. Burned area and carbon emissions have been increasing with climate change, which have the potential to alter the carbon balance and shift the region from a historic sink to a source. It is therefore critically important to track the spatiotemporal changes in burned area and fire carbon emissions over time. Here we developed a new burned-area detection algorithm between 2001\u20132019 across Alaska and Canada at 500\u2009m (meters) resolution that utilizes finer-scale 30\u2009m Landsat imagery to account for land cover unsuitable for burning. This method strictly balances omission and commission errors at 500\u2009m to derive accurate landscape- and regional-scale burned-area estimates. Using this new burned-area product, we developed statistical models to predict burn depth and carbon combustion for the same period within the NASA Arctic\u2013Boreal Vulnerability Experiment (ABoVE) core and extended domain. Statistical models were constrained using a database of field observations across the domain and were related to a variety of response variables including remotely sensed indicators of fire severity, fire weather indices, local climate, soils, and topographic indicators. The burn depth and aboveground combustion models performed best, with poorer performance for belowground combustion. We estimate 2.37\u00d7106\u2009ha (2.37\u2009Mha) burned annually between 2001\u20132019 over the ABoVE domain (2.87\u2009Mha across all of Alaska and Canada), emitting 79.3\u2009\u00b1\u200927.96\u2009Tg (\u00b11 standard deviation) of carbon (C) per year, with a mean combustion rate of 3.13\u2009\u00b1\u20091.17\u2009kg\u2009C\u2009m\u22122. Mean combustion and burn depth displayed a general gradient of higher severity in the northwestern portion of the domain to lower severity in the south and east. We also found larger-fire years and later-season burning were generally associated with greater mean combustion. Our estimates are generally consistent with previous efforts to quantify burned area, fire carbon emissions, and their drivers in regions within boreal North America; however, we generally estimate higher burned area and carbon emissions due to our use of Landsat imagery, greater availability of field observations, and improvements in modeling. The burned area and combustion datasets described here (the ABoVE Fire Emissions Database, or ABoVE-FED) can be used for local- to continental-scale applications of boreal fire science.                     </p></article>", "keywords": ["QE1-996.5", "Carbon Emissions", "Ecology", "Life", "13. Climate action", "QH501-531", "limate change", "Geology", "15. Life on land", "Boreal ecosystems", "QH540-549.5"]}, "links": [{"href": "https://doi.org/10.5194/bg-20-2785-2023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-20-2785-2023", "name": "item", "description": "10.5194/bg-20-2785-2023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-20-2785-2023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-09-29T00:00:00Z"}}, {"id": "10.5194/bg-18-1259-2021", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2020-11-05", "title": "Reviews and Syntheses: Impacts of plant silica \u2013 herbivore interactions on terrestrial biogeochemical  cycling", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Researchers have known for decades that silicon plays a major role in biogeochemical and plant-soil processes in terrestrial systems. Meanwhile, plant biologists continue to uncover a growing list of benefits derived from silicon to combat abiotic and biotic stresses, such as defense against herbivory. Yet despite growing recognition of herbivores as important ecosystem engineers, many major gaps remain in our understanding of how silicon and herbivory interact to shape biogeochemical processes, particularly in natural systems. We review and synthesize 119 available studies directly investigating silicon and herbivory to summarize key trends and highlight research gaps and opportunities. Categorizing studies by multiple ecosystem, plant, and herbivore characteristics, we find substantial evidence for a wide variety of important interactions between plant silicon and herbivory, but highlight the need for more research particularly in non-graminoid dominated vegetation outside of the temperate biome as well as on the potential effects of herbivory on silicon cycling. Continuing to overlook silicon-herbivory dynamics in natural ecosystems limits our understanding of potentially critical animal-plant-soil feedbacks necessary to inform land management decisions and to refine global models of environmental change.</p></article>", "keywords": ["Ekologi", "0106 biological sciences", "0301 basic medicine", "2. Zero hunger", "QE1-996.5", "0303 health sciences", "Ecology", "Geology", "15. Life on land", "01 natural sciences", "Climate Science", "03 medical and health sciences", "Life", "13. Climate action", "QH501-531", "QH540-549.5", "Klimatvetenskap", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-18-1259-2021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-18-1259-2021", "name": "item", "description": "10.5194/bg-18-1259-2021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-18-1259-2021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-05T00:00:00Z"}}, {"id": "10.5194/bg-18-2003-2021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2021-03-19", "title": "Topography-based statistical modelling reveals high spatial variability and seasonal emission patches in forest floor methane flux", "description": "<p>Abstract. Boreal forest soils are globally an important sink for methane (CH4), while these soils are also capable of emitting CH4 under favourable conditions. Soil wetness is a well-known driver of CH4 flux, and the wetness can be estimated with several terrain indices developed for the purpose. The aim of this study was to quantify the spatial variability of the forest floor CH4 flux with a topography-based upscaling method connecting the flux with its driving factors. We conducted spatially extensive forest floor CH4 flux and soil moisture measurements, complemented by ground vegetation classification, in a boreal pine forest. We then modelled the soil moisture with a random forest model using digital-elevation-model-derived topographic indices, based on which we upscaled the forest floor CH4 flux. The modelling was performed for two seasons: May\uffe2\uff80\uff93July and August\uffe2\uff80\uff93October. Additionally, we evaluated the number of flux measurement points needed to get an accurate estimate of the flux at the whole study site merely by averaging. Our results demonstrate high spatial heterogeneity in the forest floor CH4 flux resulting from the soil moisture variability as well as from the related ground vegetation. The mean measured CH4 flux at the sample points was \uffe2\uff88\uff925.07\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921 in May\uffe2\uff80\uff93July and \uffe2\uff88\uff928.67\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921 in August\uffe2\uff80\uff93October, while the modelled flux for the whole area was \uffe2\uff88\uff927.42 and \uffe2\uff88\uff929.91\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921 for the two seasons, respectively. The spatial variability in the soil moisture and consequently in the CH4 flux was higher in the early summer (modelled range from \uffe2\uff88\uff9212.3 to 6.19\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921) compared to the autumn period (range from \uffe2\uff88\uff9214.6 to \uffe2\uff88\uff922.12\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921), and overall the CH4 uptake rate was higher in autumn compared to early summer. In the early summer there were patches emitting high amounts of CH4; however, these wet patches got drier and smaller in size towards the autumn, changing their dynamics to CH4 uptake. The mean values of the measured and modelled CH4 fluxes for the sample point locations were similar, indicating that the model was able to reproduce the results. For the whole site, upscaling predicted stronger CH4 uptake compared to simply averaging over the sample points. The results highlight the small-scale spatial variability of the boreal forest floor CH4 flux and the importance of soil chamber placement in order to obtain spatially representative CH4 flux results. To predict the CH4 fluxes over large areas more reliably, the locations of the sample points should be selected based on the spatial variability of the driving parameters, in addition to linking the measured fluxes with the parameters.                     </p>", "keywords": ["QE1-996.5", "BOREAL FEN", "Ecology", "methane", "EDDY COVARIANCE", "NITROUS-OXIDE", "Geology", "15. Life on land", "ATMOSPHERE", "01 natural sciences", "forest soils", "Environmental sciences", "SOIL", "CARBON-DIOXIDE", "TEMPERATE FOREST", "Life", "13. Climate action", "QH501-531", "CH4 EMISSIONS", "EXCHANGE", "CHAMBER", "Geosciences", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://bg.copernicus.org/articles/18/2003/2021/bg-18-2003-2021.pdf"}, {"href": "https://doi.org/10.5194/bg-18-2003-2021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-18-2003-2021", "name": "item", "description": "10.5194/bg-18-2003-2021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-18-2003-2021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-03-19T00:00:00Z"}}, {"id": "10.5194/bg-2-159-2005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2010-04-29", "description": "<p>Abstract. Extreme sensitivity of soil organic carbon (SOC) to climate and land use change warrants further research in different terrestrial ecosystems. The aim of this study was to investigate the link between aggregate and SOC dynamics in a chronosequence of three different land uses of a south Chilean Andisol: a second growth Nothofagus obliqua forest (SGFOR), a grassland (GRASS) and a Pinus radiata plantation (PINUS). Total carbon content of the 0-10cm soil layer was higher for GRASS (6.7 kg C m-2) than for PINUS (4.3 kg C m-2, while TC content of SGFOR (5.8 kg C m-2) was not significantly different from either one. High extractable oxalate and pyrophosphate Al concentrations (varying from 20.3-24.4 g kg-1, and 3.9-11.1 g kg-1, respectively) were found in all sites. In this study, SOC and aggregate dynamics were studied using size and density fractionation experiments of the SOC, \uffce\uffb413C and total carbon analysis of the different SOC fractions, and C mineralization experiments. The results showed that electrostatic sorption between and among amorphous Al components and clay minerals is mainly responsible for the formation of metal-humus-clay complexes and the stabilization of soil aggregates. The process of ligand exchange between SOC and Al would be of minor importance resulting in the absence of aggregate hierarchy in this soil type. Whole soil C mineralization rate constants were highest for SGFOR and PINUS, followed by GRASS (respectively 0.495, 0.266 and 0.196 g CO2-Cm-2d-1 for the top soil layer). In contrast, incubation experiments of isolated macro organic matter fractions gave opposite results, showing that the recalcitrance of the SOC decreased in another order: PINUS&gt;SGFOR&gt;GRASS. We deduced that electrostatic sorption processes and physical protection of SOC in soil aggregates were the main processes determining SOC stabilization. As a result, high aggregate carbon concentrations, varying from 148 till 48 g kg-1, were encountered for all land use sites. Al availability and electrostatic charges are dependent on pH, resulting in an important influence of soil pH on aggregate stability. Recalcitrance of the SOC did not appear to largely affect SOC stabilization. Statistical correlations between extractable amorphous Al contents, aggregate stability and C mineralization rate constants were encountered, supporting this hypothesis. Land use changes affected SOC dynamics and aggregate stability by modifying soil pH (and thus electrostatic charges and available Al content), root SOC input and management practices (such as ploughing and accompanying drying of the soil).                     </p>", "keywords": ["DECOMPOSITION", "NEW-ZEALAND", "DENSITY FRACTIONS", "[SDU.ASTR] Sciences of the Universe [physics]/Astrophysics [astro-ph]", "HUMIC-ACID", "Life", "QH501-531", "QH540-549.5", "2. Zero hunger", "QE1-996.5", "CULTIVATED SOILS", "Ecology", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Geology", "LAND-USE CHANGE", "04 agricultural and veterinary sciences", "ALUMINUM", "15. Life on land", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "MACROORGANIC MATTER", "C SEQUESTRATION", "[PHYS.ASTR.CO] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]", "Earth and Environmental Sciences", "FOREST SOILS", "[SDU.STU] Sciences of the Universe [physics]/Earth Sciences", "0401 agriculture", " forestry", " and fisheries"], "contacts": [{"organization": "Huygens, D., Boeckx, P., van Cleemput, O., Oyarz\u00fan, C., Godoy, R.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5194/bg-2-159-2005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-2-159-2005", "name": "item", "description": "10.5194/bg-2-159-2005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-2-159-2005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-06-24T00:00:00Z"}}, {"id": "10.5194/bg-20-271-2023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2023-01-17", "title": "Contrasts in dissolved, particulate, and sedimentary organic carbon from the Kolyma River to the East Siberian Shelf", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Arctic rivers will be increasingly affected by the hydrological and biogeochemical consequences of thawing permafrost. During transport, permafrost-derived organic carbon (OC) can either accumulate in floodplain and shelf sediments or be degraded into greenhouse gases prior to final burial. Thus, the net impact of permafrost OC on climate will ultimately depend on the interplay of complex processes that occur along the source-to-sink system. Here, we focus on the Kolyma River, the largest watershed completely underlain by continuous permafrost, and marine sediments of the East Siberian Sea, as a transect to investigate the fate of permafrost OC along the land\u2013ocean continuum. Three pools of riverine OC were investigated for the Kolyma main stem and five of its tributaries: dissolved OC (DOC), suspended particulate OC (POC), and riverbed sediment OC (SOC). They were compared with earlier findings in marine sediments. Carbon isotopes (\u03b413C, \u039414C), lignin phenol, and lipid biomarker proxies show a contrasting composition and degradation state of these different carbon pools. Dual C isotope source apportionment calculations imply that old permafrost-OC is mostly associated with sediments (SOC; contribution of 68\u00b110\u2009%), and less dominant in POC (38\u00b18\u2009%), whereas autochthonous primary production contributes around 44\u00b110\u2009% to POC in the main stem and up to 79\u00b111\u2009% in tributaries. Biomarker degradation indices suggest that Kolyma DOC might be relatively degraded, regardless of its generally young age shown by previous studies. In contrast, SOC shows the lowest \u039414C value (oldest OC), yet relatively fresh compositional signatures. Furthermore, decreasing mineral surface area-normalised OC- and biomarker loadings suggest that SOC might be reactive along the land\u2013ocean continuum and almost all parameters were subjected to rapid change when moving from freshwater to the marine environment. This suggests that sedimentary dynamics play a crucial role when targeting permafrost-derived OC in aquatic systems and support earlier studies highlighting the fact that the land\u2013ocean transition zone is an efficient reactor and a dynamic environment. The prevailing inconsistencies between freshwater and marine research (i.e.\u00a0targeting predominantly DOC and SOC respectively) need to be better aligned in order to determine to what degree thawed permafrost OC may be destined for long-term burial, thereby attenuating further global warming.</p></article>", "keywords": ["QE1-996.5", "Ecology", "Permafrost", " Climate Feedback", " Climate Change", " Arctic", "Geology", "15. Life on land", "01 natural sciences", "6. Clean water", "Life", "13. Climate action", "QH501-531", "SDG 13 - Climate Action", "14. Life underwater", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://bg.copernicus.org/articles/20/271/2023/bg-20-271-2023.pdf"}, {"href": "https://doi.org/10.5194/bg-20-271-2023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-20-271-2023", "name": "item", "description": "10.5194/bg-20-271-2023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-20-271-2023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-06-27T00:00:00Z"}}, {"id": "10.5194/bg-2-175-2005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2010-04-29", "title": "Nitrous Oxide Fluxes And Nitrogen Cycling Along A Pasture Chronosequence In Central Amazonia, Brazil", "description": "<p>Abstract. We studied nitrous oxide (N2O) fluxes and soil nitrogen (N) cycling following forest conversion to pasture in the central Amazon near Santar\uffc3\uffa9m, Par\uffc3\uffa1, Brazil. Two undisturbed forest sites and 27 pasture sites of 0.5 to 60 years were sampled once each during wet and dry seasons. In addition to soil-atmosphere fluxes of N2O we measured 27 soil chemical, soil microbiological and soil physical variables.  Soil N2O fluxes were higher in the wet season than in the dry season. Fluxes of N2O from forest soils always exceeded fluxes from pasture soils and showed no consistent trend with pasture age. At our forest sites, nitrate was the dominant form of inorganic N both during wet and dry season. At our pasture sites nitrate generally dominated the inorganic N pools during the wet season and ammonium dominated during the dry season. Net mineralization and nitrification rates displayed large variations. During the dry season net immobilization of N was observed in some pastures. Compared to forest sites, young pasture sites (\uffe2\uff89\uffa42 years) had low microbial biomass N and protease activities. Protease activity and microbial biomass N peaked in pastures of intermediate age (4 to 8 years) followed by consistently lower values in older pasture (10 to 60 years). The C/N ratio of litter was low at the forest sites (~25) and rapidly increased with pasture age reaching values of 60\uffe2\uff80\uff9370 at pastures of 15 years and older.  Nitrous oxide emissions at our sites were controlled by C and N availability and soil aeration. Fluxes of N2O were negatively correlated to leaf litter C/N ratio, NH4+-N and the ratio of NO3--N to the sum of NO3--N + NH4+-N (indicators of N availability), and methane fluxes and bulk density (indicators of soil aeration status) during the wet season. During the dry season fluxes of N2O were positively correlated to microbial biomass N, \uffce\uffb2-glucosidase activity, total inorganic N stocks and NH4+-N. In our study region, pastures of all age emitted less N2O than old-growth forests, because of a progressive decline in N availability with pasture age combined with strongly anaerobic conditions in some pastures during the wet season.                         </p>", "keywords": ["2. Zero hunger", "QE1-996.5", "Ecology", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "577", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "[SDU.ASTR] Sciences of the Universe [physics]/Astrophysics [astro-ph]", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "Life", "[PHYS.ASTR.CO] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]", "13. Climate action", "QH501-531", "[SDU.STU] Sciences of the Universe [physics]/Earth Sciences", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5"]}, "links": [{"href": "https://doi.org/10.5194/bg-2-175-2005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-2-175-2005", "name": "item", "description": "10.5194/bg-2-175-2005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-2-175-2005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-05-04T00:00:00Z"}}, {"id": "10.5194/bg-20-3151-2023", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2023-08-01", "title": "How well does ramped thermal oxidation quantify the age distribution of soil carbon? Assessing thermal stability of physically and chemically fractionated soil organic matter", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Carbon (C) in soils persists on a range of timescales depending on physical, chemical, and biological processes that interact with soil organic matter (SOM) and affect its rate of decomposition. Together these processes determine the age distribution of soil C. Most attempts to measure this age distribution have relied on operationally defined fractions using properties like density, aggregate stability, solubility, or chemical reactivity. Recently, thermal fractionation, which relies on the activation energy needed to combust SOM, has shown promise for separating young from old C by applying increasing heat to decompose SOM. Here, we investigated radiocarbon (14C) and 13C of C released during thermal fractionation to link activation energy to the age distribution of C in bulk soil and components previously separated by density and chemical properties. While physically and chemically isolated fractions had very distinct mean 14C values, they contributed C across the full temperature range during thermal analysis. Thus, each thermal fraction collected during combustion of bulk soil integrates contributions from younger and older C derived from components having different physical and chemical properties but the same activation energy. Bulk soil and all density and chemical fractions released progressively older and more 13C-enriched C with increasing activation energy, indicating that each operationally defined fraction itself was not homogeneous but contained a mix of C with different ages and degrees of microbial processing. Overall, we found that defining the full age distribution of C in bulk soil is best quantified by first separating particulate C prior to thermal fractionation of mineral-associated SOM. For the Podzol analyzed here, thermal fractions confirmed that \u223c\u200995\u2009% of the mineral-associated organic matter (MOM) had a relatively narrow 14C distribution, while 5\u2009% was very low in 14C and likely reflected C from the &lt;\u20092\u2009mm parent shale material in the soil matrix. After first removing particulate C using density or size separation, thermal fractionation can provide a rapid technique to study the age structure of MOM and how it is influenced by different OM\u2013mineral interactions.                     </p></article>", "keywords": ["QE1-996.5", "550", "Ecology", "Soil Science", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Life", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://pub.epsilon.slu.se/31636/1/stoner-s-w-et-al-20230830.pdf"}, {"href": "https://doi.org/10.5194/bg-20-3151-2023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-20-3151-2023", "name": "item", "description": "10.5194/bg-20-3151-2023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-20-3151-2023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-09-26T00:00:00Z"}}, {"id": "10.17169/refubium-29038", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:18:32Z", "type": "Journal Article", "created": "2020-10-17", "title": "Protists and collembolans alter microbial community composition, C\u00a0dynamics and soil aggregation in simplified consumer\u2013prey systems", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Microbes play an essential role in soil functioning including biogeochemical cycling and soil aggregate formation. Yet, a major challenge is to link microbes to higher trophic levels and assess consequences for soil functioning. Here, we aimed to assess how microbial consumers modify microbial community composition (PLFA markers), as well as C dynamics (microbial\u00a0C use, SOC concentration and CO2 emission) and soil aggregation. We rebuilt two simplified soil consumer\u2013prey systems: a bacterial-based system comprising amoebae (Acanthamoeba castellanii) feeding on a microbial community dominated by the free-living bacterium Pseudomonas fluorescens and a fungal-based system comprising collembolans (Heteromurus nitidus) grazing on a microbial community dominated by the saprotrophic fungus Chaetomium globosum. The amoeba A. castellanii did not affect microbial biomass and composition, but it enhanced the formation of soil aggregates and tended to reduce their stability. Presumably, the dominance of P. fluorescens, able to produce antibiotic toxins in response to the attack by A. castellanii, was the main cause of the unchanged microbial community composition, and the release of bacterial extracellular compounds, such as long-chained polymeric substances or proteases, in reaction to predation was responsible for the changes in soil aggregation as a side effect. In the fungal system, collembolans significantly modified microbial community composition via consumptive and non-consumptive effects including the transport of microbes on the body surface. As expected, fungal biomass promoted soil aggregation and was reduced in the presence of H. nitidus. Remarkably, we also found an unexpected contribution of changes in bacterial community composition to soil aggregation. In both the bacterial and fungal systems, bacterial and fungal communities mainly consumed C from soil organic matter (rather than the litter added). Increased fungal biomass was associated with an increased capture of C from added litter, and the presence of collembolans levelled off this effect. Neither amoebae nor collembolans altered SOC concentrations and CO2 production. Overall, the results demonstrated that trophic interactions are important for achieving a mechanistic understanding of biological contributions to soil aggregation and may occur without major changes in C dynamics and with or without changes in the composition of the microbial community.</p></article>", "keywords": ["2. Zero hunger", "570", "QE1-996.5", "Acanthamoeba castellanii", "life", "agroecosystems", "Ecology", "fatty-acid analysis", "Geology", "500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie", "04 agricultural and veterinary sciences", "stability", "15. Life on land", "01 natural sciences", "bacterial community", "diversity", "stabilization", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.17169/refubium-29038"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.17169/refubium-29038", "name": "item", "description": "10.17169/refubium-29038", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.17169/refubium-29038"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-10-17T00:00:00Z"}}, {"id": "10.5194/bg-11-6221-2014", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2014-06-13", "title": "Water-Saving Ground Cover Rice Production System Reduces Net Greenhouse Gas Fluxes In An Annual Rice-Based Cropping System", "description": "<p>Abstract. To safeguard food security and preserve precious water resources, the technology of water-saving ground cover rice production system (GCRPS) is being increasingly adopted for the rice cultivation. However, changes in soil water status and temperature under GCRPS may affect soil biogeochemical processes that control the biosphere\uffe2\uff80\uff93atmosphere exchanges of methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2). The overall goal of this study is to better understand how net ecosystem greenhouse gas exchanges (NEGE) and grain yields are affected by GCRPS in an annual rice-based cropping system. Our evaluation was based on measurements of the CH4 and N2O fluxes and soil heterotrophic respiration (CO2 emission) over a complete year, as well as the estimated soil carbon sequestration intensity for six different fertilizer treatments for conventional paddy and GCRPS. The fertilizer treatments included urea application and no N fertilization for both conventional paddy (CUN and CNN) and GCRPS (GUN and GNN), solely chicken manure (GCM) and combined urea and chicken manure applications (GUM) for GCRPS. Averaging across all the fertilizer treatments, GCRPS increased annual N2O emission and grain yield by 40% and 9%, respectively, and decreased annual CH4 emission by 69%, while GCRPS did not affect soil CO2 emissions relative to the conventional paddy. The annual direct emission factors of N2O were 4.01, 0.087 and 0.50% for GUN, GCM and GUM, respectively, and 1.52% for the conventional paddy (CUN). The annual soil carbon sequestration intensity under GCRPS was estimated to be an average of \uffe2\uff88\uff921.33 Mg C ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921, which is approximately 44% higher than the conventional paddy. The annual NEGE were 10.80\uffe2\uff80\uff9311.02 Mg CO2-eq ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921 for the conventional paddy and 3.05\uffe2\uff80\uff939.37 Mg CO2-eq ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921 for the GCRPS, suggesting the potential feasibility of GCRPS in reducing net greenhouse effect from rice cultivation. Using organic fertilizers for GCRPS considerably reduced annual emissions of CH4 and N2O and increased soil carbon sequestration, resulting in the lowest NEGE (3.05\uffe2\uff80\uff935.00 Mg CO2-eq ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921). Accordingly, water-saving GCRPS with organic fertilizer amendments was considered the most promising management regime for simultaneously achieving relatively high grain yield and reduced net greenhouse gas emission.                         </p>", "keywords": ["2. Zero hunger", "QE1-996.5", "info:eu-repo/classification/ddc/550", "550", "Ecology", "ddc:550", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "630", "6. Clean water", "12. Responsible consumption", "Earth sciences", "Life", "13. Climate action", "QH501-531", "8. Economic growth", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-11-6221-2014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-11-6221-2014", "name": "item", "description": "10.5194/bg-11-6221-2014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-11-6221-2014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-06-13T00:00:00Z"}}, {"id": "10.5194/bg-11-6969-2014", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2014-12-11", "title": "Meta-analysis of high-latitude nitrogen-addition and warming studies implies ecological mechanisms overlooked by land models", "description": "<p>Abstract. Accurate representation of ecosystem processes in land models is crucial for reducing predictive uncertainty in energy and greenhouse gas feedbacks with the climate. Here we describe an observational and modeling meta-analysis approach to benchmark land models, and apply the method to the land model CLM4.5 with two versions of belowground biogeochemistry. We focused our analysis on the aboveground and belowground responses to warming and nitrogen addition in high-latitude ecosystems, and identified absent or poorly parameterized mechanisms in CLM4.5. While the two model versions predicted similar soil carbon stock trajectories following both warming and nitrogen addition, other predicted variables (e.g., belowground respiration) differed from observations in both magnitude and direction, indicating that CLM4.5 has inadequate underlying mechanisms for representing high-latitude ecosystems. On the basis of observational synthesis, we attribute the model\uffe2\uff80\uff93observation differences to missing representations of microbial dynamics, aboveground and belowground coupling, and nutrient cycling, and we use the observational meta-analysis to discuss potential approaches to improving the current models. However, we also urge caution concerning the selection of data sets and experiments for meta-analysis. For example, the concentrations of nitrogen applied in the synthesized field experiments (average = 72 kg ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921) are many times higher than projected soil nitrogen concentrations (from nitrogen deposition and release during mineralization), which precludes a rigorous evaluation of the model responses to likely nitrogen perturbations. Overall, we demonstrate that elucidating ecological mechanisms via meta-analysis can identify deficiencies in ecosystem models and empirical experiments.                     </p>", "keywords": ["0301 basic medicine", "QE1-996.5", "Ecology", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "03 medical and health sciences", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-11-6969-2014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-11-6969-2014", "name": "item", "description": "10.5194/bg-11-6969-2014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-11-6969-2014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-08-18T00:00:00Z"}}, {"id": "10.5194/bg-17-1033-2020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2020-02-26", "title": "\"Estimating causal networks in biosphere\u2013atmosphere interaction with the PCMCI approach\"", "description": "<p>Abstract. The dynamics of biochemical processes in terrestrial ecosystems are tightly coupled to local meteorological conditions. Understanding these interactions is an essential prerequisite for predicting, e.g. the response of the terrestrial carbon cycle to climate change. However, many empirical studies in this field rely on correlative approaches and only very few studies apply causal discovery methods. Here we explore the potential for a recently proposed causal graph discovery algorithm to reconstruct the causal dependency structure underlying biosphere\uffe2\uff80\uff93atmosphere interactions. Using artificial time series with known dependencies that mimic real-world biosphere\uffe2\uff80\uff93atmosphere interactions we address the influence of non-stationarities, i.e. periodicity and heteroscedasticity, on the estimation of causal networks. We then investigate the interpretability of the method in two case studies. Firstly, we analyse three replicated eddy covariance datasets from a Mediterranean ecosystem. Secondly, we explore global Normalised Difference Vegetation Index time series (GIMMS\uffc2\uffa03g), along with gridded climate data to study large-scale climatic drivers of vegetation greenness. We compare the retrieved causal graphs to simple cross-correlation-based approaches to test whether causal graphs are considerably more informative. Overall, the results confirm the capacity of the causal discovery method to extract time-lagged linear dependencies under realistic settings. For example, we find a complete decoupling of the net ecosystem exchange from meteorological variability during summer in the Mediterranean ecosystem. However, cautious interpretations are needed, as the violation of the method's assumptions due to non-stationarities increases the likelihood to detect false links. Overall, estimating directed biosphere\uffe2\uff80\uff93atmosphere networks helps unravel complex multidirectional process interactions. Other than classical correlative approaches, our findings are constrained to a few meaningful sets of relations, which can be powerful insights for the evaluation of terrestrial ecosystem models.                     </p>", "keywords": ["Agriculture and Food Sciences", "PINE FOREST", "Evolution", "0207 environmental engineering", "02 engineering and technology", "01 natural sciences", "CO2 EXCHANGE", "Behavior and Systematics", "Life", "QH501-531", "BEECH FOREST", "QH540-549.5", "Earth-Surface Processes", "0105 earth and related environmental sciences", "QE1-996.5", "NET ECOSYSTEM EXCHANGE", "Ecology", "CARBON-DIOXIDE EXCHANGE", "SPRUCE FOREST", "Geology", "WATER-VAPOR FLUXES", "15. Life on land", "13. Climate action", "GRANGER-CAUSALITY", "INTERANNUAL VARIABILITY", "GAS-EXCHANGE"]}, "links": [{"href": "https://bg.copernicus.org/articles/17/1033/2020/bg-17-1033-2020.pdf"}, {"href": "https://doi.org/10.5194/bg-17-1033-2020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-17-1033-2020", "name": "item", "description": "10.5194/bg-17-1033-2020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-17-1033-2020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-02-26T00:00:00Z"}}, {"id": "10.5194/bg-2023-23", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2023-06-23", "title": "Water-table-driven greenhouse gas emission estimates guide peatland restoration at national scale", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The substantial climate change mitigation potential of restoring peatlands through rewetting and intensifying agriculture to reduce greenhouse gas (GHG) emissions is largely recognized. The green deal in Denmark aims at restoring 100\u2009000\u2009ha of peatlands by 2030. This area corresponds to more than half of the Danish peatland, with an expected reduction in GHG emissions of almost half of the entire land use, land use change and forestry (LULUFC) emissions. Recent advances established the functional relationship between hydrological regimes, i.e., water table depth (WTD), and CO2 and CH4\u00a0emissions. This builds the basis for science-based tools to evaluate and prioritize peatland restoration projects. With this article, we lay the foundation of such a development by developing a high-resolution WTD map for Danish peatlands. Further, we define WTD response functions (CO2 and CH4) fitted to Danish flux data to derive a national GHG\u00a0emission estimate for peat soils. We estimate the annual GHG emissions to be 2.6\u2009Mt\u2009CO2-eq, which is around 15\u2009% lower than previous estimates. Lastly, we investigate alternative restoration scenarios and identify substantial differences in the GHG reduction potential depending on the prioritization of fields in the rewetting strategy. If wet fields are prioritized, which is not unlikely in a context of a voluntary bottom-up approach, the GHG reduction potential is just 30\u2009% for the first 10\u2009000\u2009ha with respect to a scenario that prioritizes drained fields. This underpins the importance of the proposed framework linking WTD and GHG emissions to guide a spatially differentiated peatland restoration. The choice of model type used to fit the CO2 WTD response function, the applied global warming potentials and uncertainties related to the WTD map are investigated by means of a scenario analysis, which suggests that the estimated GHG emissions and the reduction potential are associated with coefficients of variation of 13\u2009% and 22\u2009%, respectively.</p></article>", "keywords": ["QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "11. Sustainability", "Geology", "15. Life on land", "QH540-549.5"]}, "links": [{"href": "https://bg.copernicus.org/articles/20/2387/2023/bg-20-2387-2023.pdf"}, {"href": "https://doi.org/10.5194/bg-2023-23"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-2023-23", "name": "item", "description": "10.5194/bg-2023-23", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-2023-23"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-02-02T00:00:00Z"}}, {"id": "10.5194/bg-21-109-2024", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2024-01-05", "title": "Geographically divergent trends in snow disappearance timing and fire ignitions across boreal North America", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The snow cover extent across the Northern Hemisphere has diminished, while the number of lightning ignitions and amount of burned area have increased over the last 5\u00a0decades with accelerated warming. However, the effects of earlier snow disappearance on fire are largely unknown. Here, we assessed the influence of snow disappearance timing on fire ignitions across 16 ecoregions of boreal North America. We found spatially divergent trends in earlier (later) snow disappearance, which led to an increasing (decreasing) number of ignitions for the northwestern (southeastern) ecoregions between 1980 and 2019. Similar northwest\u2013southeast divergent trends were observed in the changing length of the snow-free season and correspondingly the fire season length. We observed increases (decreases) over northwestern (southeastern) boreal North America which coincided with a continental dipole in air temperature changes between 2001 and 2019. Earlier snow disappearance induced earlier ignitions of between 0.22 and 1.43\u2009d earlier per day of earlier snow disappearance in all ecoregions between 2001 and 2019. Early-season ignitions (defined by the 20\u2009% earliest fire ignitions per year) developed into significantly larger fires in 8 out of 16 ecoregions, being on average 77\u2009% larger across the whole domain. Using a piecewise structural equation model, we found that earlier snow disappearance is a good direct proxy for earlier ignitions but may also result in a cascade of effects from earlier desiccation of fuels and favorable weather conditions that lead to earlier ignitions. This indicates that snow disappearance timing is an important trigger of land\u2013atmosphere dynamics. Future warming and consequent changes in snow disappearance timing may contribute to further increases in western boreal fires, while it remains unclear how the number and timing of fire ignitions in eastern boreal North America may change with climate change.                     </p></article>", "keywords": ["0301 basic medicine", "QE1-996.5", "03 medical and health sciences", "Ecology", "Life", "13. Climate action", "QH501-531", "Geology", "15. Life on land", "01 natural sciences", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://bg.copernicus.org/articles/21/109/2024/bg-21-109-2024.pdf"}, {"href": "https://doi.org/10.5194/bg-21-109-2024"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-21-109-2024", "name": "item", "description": "10.5194/bg-21-109-2024", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-21-109-2024"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-05T00:00:00Z"}}, {"id": "10.5194/bg-10-3931-2013", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2013-06-18", "description": "<p>Abstract. Dissolved organic carbon (DOC) plays a critical role in the carbon (C) cycle of forest soils, and has been recently connected with global increases in nitrogen (N) deposition. Most studies on effects of elevated N deposition on DOC have been carried out in N-limited temperate regions, with far fewer data available from N-rich ecosystems, especially in the context of chronically elevated N deposition. Furthermore, mechanisms for excess N-induced changes of DOC dynamics have been suggested to be different between the two kinds of ecosystems, because of the different ecosystem N status. The purpose of this study was to experimentally examine how long-term N addition affects DOC dynamics below the primary rooting zones (the upper 20 cm soils) in typically N-rich lowland tropical forests. We have a primary assumption that long-term continuous N addition minimally affects DOC concentrations and effluxes in N-rich tropical forests. Experimental N addition was administered at the following levels: 0, 50, 100 and 150 kg N ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921, respectively. Results showed that seven years of N addition significantly decreased DOC concentrations in soil solution, and chemo-physical controls (solution acidity change and soil sorption) rather than biological controls may mainly account for the decreases, in contrast to other forests. We further found that N addition greatly decreased annual DOC effluxes from the primary rooting zone and increased water-extractable DOC in soils. Our results suggest that long-term N deposition could increase soil C sequestration in the upper soils by decreasing DOC efflux from that layer in N-rich ecosystems, a novel mechanism for continued accumulation of soil C in old-growth forests.                     </p>", "keywords": ["QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-10-3931-2013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-10-3931-2013", "name": "item", "description": "10.5194/bg-10-3931-2013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-10-3931-2013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-01-29T00:00:00Z"}}, {"id": "10.5194/egusphere-2024-348", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:20:00Z", "type": "Journal Article", "created": "2024-02-12", "title": "When and why microbial-explicit soil organic carbon models can be unstable", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Microbial-explicit soil organic carbon (SOC) cycling models are increasingly recognized for their advantages over linear models in describing SOC dynamics. These models are known to exhibit oscillations, but it is not clear when they yield stable vs. unstable equilibrium points (EPs) \u2013 i.e. EPs that exist analytically, but are not stable to small perturbations and cannot be reached by transient simulations. Occurrence of such unstable EPs can lead to unexpected model behaviour in transient simulations or unrealistic predictions of steady state soil organic carbon (SOC) stocks. Here we ask when and why unstable EPs can occur in an archetypal microbial-explicit model (representing SOC, dissolved OC [DOC], microbial biomass, and extracellular enzymes) and some simplified versions of it. Further, if a model formulation allows for physically meaningful but unstable EPs, can we find constraints in the model parameters (i.e. environmental conditions and microbial traits) that ensure stability of the EPs? We use analytical, numerical and descriptive tools to answer these questions. We found that instability can occur when the resupply of a growth substrate (DOC) is (via a positive feedback loop) dependent on its abundance. We identified a conservative, sufficient condition on model parameters to ensure stability of EPs. Interactive effects of environmental conditions and parameters describing microbial physiology point to the relevance of basic ecological principles for avoidance of unrealistic (i.e. unstable) simulation outcomes. These insights can help to improve applicability of microbial-explicit models, aid our understanding of the dynamics of these models and highlight the relation between mathematical requirements and (in silico) microbial ecology.                         </p></article>", "keywords": ["0301 basic medicine", "QE1-996.5", "03 medical and health sciences", "Ecology", "Life", "13. Climate action", "QH501-531", "Geology", "15. Life on land", "01 natural sciences", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/egusphere-2024-348"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/egusphere-2024-348", "name": "item", "description": "10.5194/egusphere-2024-348", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/egusphere-2024-348"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-02-12T00:00:00Z"}}, {"id": "10.5194/bg-10-3963-2013", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2013-06-18", "description": "<p>Abstract. Both long-term observation data and model simulations suggest an increasing chance of serious drought in the dry season and extreme flood in the wet season in southern China, yet little is known about how changes in precipitation pattern will affect soil respiration in the region. We conducted a field experiment to study the responses of soil respiration to precipitation manipulations \uffe2\uff80\uff93 precipitation exclusion to mimic drought, double precipitation to simulate flood, and ambient precipitation as control (abbr. EP, DP and AP, respectively) \uffe2\uff80\uff93 in three subtropical forests in southern China. The three forest sites include Masson pine forest (PF), coniferous and broad-leaved mixed forest (MF) and monsoon evergreen broad-leaved forest (BF). Our observations showed that altered precipitation strongly influenced soil respiration, not only through the well-known direct effects of soil moisture on plant and microbial activities, but also by modification of both moisture and temperature sensitivity of soil respiration. In the dry season, soil respiration and its temperature sensitivity, as well as fine root and soil microbial biomass, showed rising trends with precipitation increases in the three forest sites. Contrarily, the moisture sensitivity of soil respiration decreased with precipitation increases. In the wet season, different treatments showed different effects in three forest sites. The EP treatment decreased fine root biomass, soil microbial biomass, soil respiration and its temperature sensitivity, but enhanced soil moisture sensitivity in all three forest sites. The DP treatment significantly increased soil respiration, fine root and soil microbial biomass in the PF only, and no significant change was found for the soil temperature sensitivity. However, the DP treatment in the MF and BF reduced soil temperature sensitivity significantly in the wet season. Our results indicated that soil respiration would decrease in the three subtropical forests if soil moisture continues to decrease in the future. More rainfall in the wet season could have limited effect on the response of soil respiration to the rising of temperature in the BF and MF.                     </p>", "keywords": ["0106 biological sciences", "2. Zero hunger", "QE1-996.5", "Ecology", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5"]}, "links": [{"href": "https://doi.org/10.5194/bg-10-3963-2013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-10-3963-2013", "name": "item", "description": "10.5194/bg-10-3963-2013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-10-3963-2013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-06-18T00:00:00Z"}}, {"id": "10.5194/bg-12-2003-2015", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2014-10-28", "title": "The Combined Effects Of Nitrification Inhibitor And Biochar Incorporation On Yield-Scaled N2o Emissions From An Intensively Managed Vegetable Field In Southeastern China", "description": "<p>Abstract. The influences of nitrification inhibitor (NI) and biochar incorporation on yield-scaled N2O in a vegetable field were studied using the static chamber method and gas chromatography. An experiment was conducted in an intensively managed vegetable field with 7 consecutive vegetable crops in 2012\uffe2\uff80\uff932014 in southeastern China. With equal annual amounts of N (1217.3 kg N ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921), 6 treatments under 3 biochar amendment rates, namely, 0 t ha\uffe2\uff88\uff921 (C0), 20 t ha\uffe2\uff88\uff921 (C1), and 40 t ha\uffe2\uff88\uff921 (C2), with compound fertilizer (CF) or urea mixed with chlorinated pyridine (CP) as NI, were studied in these field experiments. The results showed that although no significant influence on soil organic carbon (SOC) content or total nitrogen (TN), CP could result in a significant increase in soil pH during the experimental period. CP significantly decreased cumulative N2O emissions by 15.9\uffe2\uff80\uff9332.1% while increasing vegetable yield by 9.8\uffe2\uff80\uff9341.9%. Thus, it also decreased yield-scaled N2O emissions significantly. In addition to the differential responses of the soil pH, biochar amendment significantly increased SOC and TN. Additionally, compared with the treatments without biochar addition, cumulative N2O emissions showed no significant difference in the CF or the CP group treatments but increased slightly (but not significantly) by 7.9\uffe2\uff80\uff9318.3% in the CP group treatments. Vegetable yield was enhanced by 7.1\uffe2\uff80\uff9349.5% compared with the treatments without biochar amendment, and the yield-scaled N2O emissions were thus decreased significantly. Furthermore, treatments applied with CP and biochar incorporation slightly increased yield-scaled N2O emissions by 9.4%, on average, compared with CP-C0. Therefore, the incorporation of CP could serve as an appropriate practice for increasing vegetable yield and mitigating N2O emissions in intensively managed vegetable fields and should be further examined in various agroecosystems.                         </p>", "keywords": ["2. Zero hunger", "QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "QH540-549.5", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.5194/bg-12-2003-2015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-12-2003-2015", "name": "item", "description": "10.5194/bg-12-2003-2015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-12-2003-2015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-10-28T00:00:00Z"}}, {"id": "10.5194/bg-12-3029-2015", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2015-05-22", "title": "Distribution Of Black Carbon In Ponderosa Pine Forest Floor And Soils Following The High Park Wildfire", "description": "<p>Abstract. Biomass burning produces black carbon (BC), effectively transferring a fraction of the biomass C from an actively cycling pool to a passive C pool, which may be stored in the soil. Yet the timescales and mechanisms for incorporation of BC into the soil profile are not well understood. The High Park fire (HPF), which occurred in northwestern Colorado in the summer of 2012, provided an opportunity to study the effects of both fire severity and geomorphology on properties of carbon (C), nitrogen (N) and BC in the Cache La Poudre River drainage. We sampled montane ponderosa pine forest floor (litter plus O-horizon) and soils at 0\uffe2\uff80\uff935 and 5\uffe2\uff80\uff9315 cm depth 4 months post-fire in order to examine the effects of slope and burn severity on %C, C stocks, %N and BC. We used the benzene polycarboxylic acid (BPCA) method for quantifying BC. With regard to slope, we found that steeper slopes had higher C : N than shallow slopes but that there was no difference in BPCA-C content or stocks. BC content was greatest in the forest floor at burned sites (19 g BPCA-C kg\uffe2\uff88\uff921 C), while BC stocks were greatest in the 5\uffe2\uff80\uff9315 cm subsurface soils (23 g BPCA-C m\uffe2\uff88\uff922). At the time of sampling, unburned and burned soils had equivalent BC content, indicating none of the BC deposited on the land surface post-fire had been incorporated into either the 0\uffe2\uff80\uff935 or 5\uffe2\uff80\uff9315 cm soil layers. The ratio of B6CA : total BPCAs, an index of the degree of aromatic C condensation, suggested that BC in the 5\uffe2\uff80\uff9315 cm soil layer may have been formed at higher temperatures or experienced selective degradation relative to the forest floor and 0\uffe2\uff80\uff935 cm soils. Total BC soil stocks were relatively low compared to other fire-prone grassland and boreal forest systems, indicating most of the BC produced in this system is likely lost, either through erosion events, degradation or translocation to deeper soils. Future work examining mechanisms for BC losses from forest soils will be required for understanding the role BC plays in the global carbon cycle.                     </p>", "keywords": ["QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "QH540-549.5", "3. Good health", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-12-3029-2015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-12-3029-2015", "name": "item", "description": "10.5194/bg-12-3029-2015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-12-3029-2015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-05-22T00:00:00Z"}}, {"id": "10.5194/bg-12-5537-2015", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2015-09-29", "title": "Responses Of Soil Microbial Communities And Enzyme Activities To Nitrogen And Phosphorus Additions In Chinese Fir Plantations Of Subtropical China", "description": "<p>Abstract. Nitrogen (N) and phosphorus (P) additions to forest ecosystems are known to influence various above-ground properties, such as plant productivity and composition, and below-ground properties, such as soil nutrient cycling. However, our understanding of how soil microbial communities and their functions respond to nutrient additions in subtropical plantations is still not complete. In this study, we added N and P to Chinese fir plantations in subtropical China to examine how nutrient additions influenced soil microbial community composition and enzyme activities. The results showed that most soil microbial properties were responsive to N and/or P additions, but responses often varied depending on the nutrient added and the quantity added. For instance, there were more than 30 % greater increases in the activities of \uffce\uffb2-glucosidase (\uffce\uffb2G) and N-acetyl-\uffce\uffb2-D-glucosaminidase (NAG) in the treatments that received nutrient additions compared to the control plot, whereas acid phosphatase (aP) activity was always higher (57 and 71 %, respectively) in the P treatment. N and P additions greatly enhanced the phospholipid fatty acids (PLFAs) abundance especially in the N2P (100 kg ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921 of N +50 kg ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921 of P) treatment; the bacterial PLFAs (bacPLFAs), fungal PLFAs (funPLFAs) and actinomycic PLFAs (actPLFAs) were about 2.5, 3 and 4 times higher, respectively, than in the CK (control). Soil enzyme activities were noticeably higher in November than in July, mainly due to seasonal differences in soil moisture content (SMC). \uffce\uffb2G or NAG activities were significantly and positively correlated with microbial PLFAs. These findings indicate that \uffce\uffb2G and NAG would be useful tools for assessing the biogeochemical transformation and metabolic activity of soil microbes. We recommend combined additions of N and P fertilizer to promote soil fertility and microbial activity in this kind of plantation.                     </p>", "keywords": ["Biogeochemical Cycling of Nutrients in Aquatic Ecosystems", "Microbial population biology", "Nitrogen", "Soil Science", "Organic chemistry", "Carbon Dynamics in Peatland Ecosystems", "Biochemistry", "Nutrient cycle", "Agricultural and Biological Sciences", "Life", "QH501-531", "Genetics", "Environmental Chemistry", "Biology", "QH540-549.5", "Ecosystem", "2. Zero hunger", "QE1-996.5", "Ecology", "Bacteria", "Nutrient Cycling", "Life Sciences", "Geology", "Phosphorus", "04 agricultural and veterinary sciences", "15. Life on land", "Agronomy", "6. Clean water", "Chemistry", "Phos", "Subtropics", "FOS: Biological sciences", "Environmental Science", "Physical Sciences", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems", "Ecosystem Functioning", "Animal science", "Nutrient"], "contacts": [{"organization": "Wenyi Dong, X. Y. Zhang, X. Y. Liu, Xiaoli Fu, F. S. Chen, H. M. Wang, Xiaoming Sun, Xuefa Wen,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5194/bg-12-5537-2015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-12-5537-2015", "name": "item", "description": "10.5194/bg-12-5537-2015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-12-5537-2015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-07-08T00:00:00Z"}}, {"id": "10.5194/bg-12-5635-2015", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2015-07-07", "title": "Annual Litterfall Dynamics And Nutrient Deposition Depending On Elevation And Land Use At Mt. Kilimanjaro", "description": "<p>Abstract. Litterfall is one of the major pathways connecting above- and belowground processes. The effects of climate and land-use change on carbon (C) and nutrient inputs by litterfall are poorly known. We quantified and analyzed annual patterns of C and nutrient deposition via litterfall in natural forests and agroforestry systems along the unique elevation gradient of Mt. Kilimanjaro.  Tree litter in three natural (lower montane, Ocotea and Podocarpus forests), two sustainably used (homegardens) and one intensively managed (shaded coffee plantation) was collected on a biweekly basis from May 2012 to July 2013. Leaves, branches and remaining residues were separated and analyzed for C and nutrient contents.  The annual pattern of litterfall was closely related to rainfall seasonality, exhibiting a large peak towards the end of the dry season (August\uffe2\uff80\uff93October). This peak decreased at higher elevations with decreasing rainfall seasonality. Macronutrients (N, P, K) in leaf litter increased at mid elevation (2100 m a.s.l.) and with land-use intensity. Carbon content and micronutrients (Al, Fe, Mn, Na) however, were unaffected or decreased with land-use intensity.  On the southern slope of Mt. Kilimanjaro, the annual pattern of litterfall depends on seasonal climatic conditions. While leaf litterfall decreased with elevation, total annual input was independent of climate. Compared to natural forests, the nutrient cycles in agroforestry ecosystems were accelerated by fertilization and the associated changes in dominant tree species.                         </p>", "keywords": ["2. Zero hunger", "0106 biological sciences", "QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "Geology", "15. Life on land", "01 natural sciences", "QH540-549.5"]}, "links": [{"href": "https://doi.org/10.5194/bg-12-5635-2015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-12-5635-2015", "name": "item", "description": "10.5194/bg-12-5635-2015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-12-5635-2015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-07-07T00:00:00Z"}}, {"id": "10.5194/bg-12-6169-2015", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2015-10-28", "title": "Sediment Properties And Co2 Efflux From Intact And Cleared Temperate Mangrove Forests", "description": "<p>Abstract. Temperate mangrove forests in New Zealand have increased in area over recent decades. Expansion of temperate mangroves in New Zealand is associated with perceived loss of other estuarine habitats, and decreased recreational and amenity values, resulting in clearing of mangrove forests. In the tropics, changes in sediment characteristics and carbon efflux have been reported following mangrove clearance. This is the first study in temperate mangrove (Avicennia marina) forests investigating the impact of clearing on sediment CO2 efflux and associated biotic and abiotic factors.  Sediment CO2 efflux rates from intact (168.5 \uffc2\uffb1 45.8 mmol m\uffe2\uff88\uff922 d\uffe2\uff88\uff921) and cleared (133.9 \uffc2\uffb1 37.2 mmol m\uffe2\uff88\uff922 d\uffe2\uff88\uff921) mangrove forests in New Zealand are comparable to rates measured in tropical mangrove forests. We did not find a significant difference in sediment CO2 efflux rates between intact and cleared temperate mangrove forests. Pre-shading the sediment for more than 30 min prior to dark chamber measurements was found to have no significant effect on sediment CO2 efflux. This suggests that the continuation of photosynthetic CO2 uptake by biofilm communities was not occurring after placement of dark chambers. Rather, above-ground mangrove biomass, sediment temperature and chlorophyll a concentration were the main factors explaining the variability in sediment CO2 efflux in intact mangrove forests. The main factors influencing sediment CO2 efflux in cleared mangrove forest sites were sediment organic carbon concentration, nitrogen concentration and sediment grain size. Our results show that greater consideration should be given regarding the rate of carbon released from mangrove forest following clearance and the relative contribution to global carbon emissions.                     </p>", "keywords": ["0106 biological sciences", "QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "Geology", "15. Life on land", "01 natural sciences", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-12-6169-2015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-12-6169-2015", "name": "item", "description": "10.5194/bg-12-6169-2015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-12-6169-2015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-10-28T00:00:00Z"}}, {"id": "10.5194/bg-13-1491-2016", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2015-12-09", "title": "Variability of projected terrestrial biosphere responses to elevated levels of atmospheric CO<sub>2</sub> due to uncertainty in biological nitrogen fixation", "description": "<p>Abstract. Including a terrestrial nitrogen (N) cycle in Earth system models has led to substantial attenuation of predicted biosphere-climate feedbacks. However, the magnitude of this attenuation remains uncertain. A particularly important, but highly uncertain process is biological nitrogen fixation (BNF), which is the largest natural input of N to land ecosystems globally. In order to quantify this uncertainty, and estimate likely effects on terrestrial biosphere dynamics, we applied six alternative formulations of BNF spanning the range of process formulations in current state-of-the-art biosphere models within a common framework, the O-CN model: a global map of static BNF rates, two empirical relationships between BNF and other ecosystem variables (net primary productivity (NPP) and evapotranspiration), two process-oriented formulations based on plant N status, and an optimality-based approach. We examined the resulting differences in model predictions under ambient and elevated atmospheric [CO2] and found that the predicted global BNF rates and their spatial distribution for contemporary conditions were broadly comparable, ranging from 95 to 134 Tg N yr\uffe2\uff88\uff921 (median 119 Tg N yr\uffe2\uff88\uff921), despite distinct regional patterns associated with the assumptions of each approach. Notwithstanding, model responses in BNF rates to elevated levels of atmospheric [CO2] (+200 ppm) ranged between \uffe2\uff88\uff924 Tg N yr\uffe2\uff88\uff921 (\uffe2\uff88\uff923 %) and 56 Tg N yr\uffe2\uff88\uff921 (+42 %) (median 7 Tg N yr\uffe2\uff88\uff921 (+8 %)). As a consequence, future projections of global ecosystem carbon storage (+281 to +353 Pg C, or +13 to +16 %), as well as N2O emission (\uffe2\uff88\uff921.6 to +0.5 Tg N yr\uffe2\uff88\uff921, or \uffe2\uff88\uff9219 to +7 %) differed significantly across the different model formulations. Our results emphasize the importance of better understanding the nature and magnitude of BNF responses to change-induced perturbations, particularly through new empirical perturbation experiments and improved model representation.                         </p>", "keywords": ["QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "Geology", "15. Life on land", "01 natural sciences", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-13-1491-2016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-13-1491-2016", "name": "item", "description": "10.5194/bg-13-1491-2016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-13-1491-2016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-12-09T00:00:00Z"}}, {"id": "10.5194/bg-13-2367-2016", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2016-04-22", "title": "Effects Of Management Thinning On Co2 Exchange By A Plantation Oak Woodland In South-Eastern England", "description": "<p>Abstract. Forest thinning, which removes some individual trees from a forest stand at intermediate stages of the rotation, is commonly used as a silvicultural technique and is a management practice that can substantially alter both forest canopy structure and carbon storage. Whilst a proportion of the standing biomass is removed through harvested timber, thinning also removes some of the photosynthetic leaf area and introduces a large pulse of woody residue (brash) to the soil surface, which potentially can alter the balance of autotrophic and heterotrophic respiration. Using a combination of eddy covariance (EC) and aerial light detection and ranging (lidar) data, this study investigated the effects of management thinning on the carbon balance and canopy structure in a commercially managed oak plantation in the south-east of England. Whilst thinning had a large effect on the canopy structure, increasing canopy complexity and gap fraction, the effects of thinning on the carbon balance were not as evident. In the first year post thinning, the peak summer photosynthetic rate was unaffected by the thinning, suggesting that the better illuminated ground vegetation and shrub layer compensated for the removed trees. Peak summer photosynthetic rate was reduced in the thinned area between 2009 and 2011, but there was no significant difference between sectors. Ecosystem respiration fluxes increased in the thinned relative to the unthinned area in the post-thinning phase.                     </p>", "keywords": ["0106 biological sciences", "QE1-996.5", "Ecology", "Life", "QH501-531", "Geology", "15. Life on land", "01 natural sciences", "QH540-549.5", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Edward L. Eaton, Matthew Wilkinson, Peter Crow, James I. L. Morison,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5194/bg-13-2367-2016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-13-2367-2016", "name": "item", "description": "10.5194/bg-13-2367-2016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-13-2367-2016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-10-01T00:00:00Z"}}, {"id": "10.5194/bg-13-267-2016", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2016-01-27", "description": "<p>Abstract. Wildfires are by far the largest contributor to global biomass burning and constitute a large global source of atmospheric traces gases and aerosols. Such emissions have a considerable impact on air quality and constitute a major health hazard. Biomass burning also influences the radiative balance of the atmosphere and is thus not only of societal, but also of significant scientific interest. There is a common perception that climate change will lead to an increase in emissions as hot and dry weather events that promote wildfire will become more common. However, even though a few studies have found that the inclusion of CO2 fertilisation of photosynthesis and changes in human population patterns will tend to somewhat lower predictions of future wildfire emissions, no such study has included full ensemble ranges of both climate predictions and population projections, including the effect of different degrees of urbanisation.Here, we present a series of 124 simulations with the LPJ\uffe2\uff80\uff93GUESS\uffe2\uff80\uff93SIMFIRE global dynamic vegetation\uffe2\uff80\uff93wildfire model, including a semi-empirical formulation for the prediction of burned area based on fire weather, fuel continuity and human population density. The simulations use Climate Model Intercomparison Project 5 (CMIP5) climate predictions from eight Earth system models. These were combined with two Representative Concentration Pathways (RCPs) and five scenarios of future human population density based on the series of Shared Socioeconomic Pathways (SSPs) to assess the sensitivity of emissions to the effect of climate, CO2 and humans. In addition, two alternative parameterisations of the semi-empirical burned-area model were applied. Contrary to previous work, we find no clear future trend of global wildfire emissions for the moderate emissions and climate change scenario based on the RCP 4.5. Only historical population change introduces a decline by around 15\uffe2\uff80\uffaf% since 1900. Future emissions could either increase for low population growth and fast urbanisation, or continue to decline for high population growth and slow urbanisation. Only for high future climate change (RCP8.5), wildfire emissions start to rise again after ca. 2020 but are unlikely to reach the levels of 1900 by the end of the 21st century. We find that climate warming will generally increase the risk of fire, but that this is only one of several equally important factors driving future levels of wildfire emissions, which include population change, CO2 fertilisation causing woody thickening, increased productivity and fuel load and faster litter turnover in a warmer climate.                     </p>", "keywords": ["QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "11. Sustainability", "Geology", "15. Life on land", "10. No inequality", "01 natural sciences", "7. Clean energy", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-13-267-2016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-13-267-2016", "name": "item", "description": "10.5194/bg-13-267-2016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-13-267-2016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-01-15T00:00:00Z"}}, {"id": "10.5194/bg-19-3505-2022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2022-07-28", "title": "Reviews and syntheses: The promise of big diverse soil data, moving current practices towards future potential", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. In the age of big data, soil data are more available and richer than ever, but \u2013 outside of a few large soil survey resources \u2013 they remain largely unusable for informing soil management and understanding Earth system processes beyond the original study. Data science has promised a fully reusable research pipeline where data from past studies are used to contextualize new findings and reanalyzed for new insight. Yet synthesis projects encounter challenges at all steps of the data reuse pipeline, including unavailable data, labor-intensive transcription of datasets, incomplete metadata, and a lack of communication between collaborators. Here, using insights from a diversity of soil, data, and climate scientists, we summarize current practices in soil data synthesis across all stages of database creation: availability, input, harmonization, curation, and publication. We then suggest new soil-focused semantic tools to improve existing data pipelines, such as ontologies, vocabulary lists, and community practices. Our goal is to provide the soil data community with an overview of current practices in soil data and where we need to go to fully leverage big data to solve soil problems in the next century.                     </p></article>", "keywords": ["FOS: Computer and information sciences", "0301 basic medicine", "Data Sharing", "Information Systems and Management", "literature review", "1904 Earth-Surface Processes", "Social Sciences", "data set", "01 natural sciences", "Decision Sciences", "Data science", "Life", "QH501-531", "910 Geography & travel", "soil analysis", "database", "QH540-549.5", "2. Zero hunger", "QE1-996.5", "000", "Ecology", "communication", "Physics", "Earth", "Geology", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "World Wide Web", "10122 Institute of Geography", "soil survey", "Physical Sciences", "Data Reuse", "environment", "Information Systems", "Evolution", "future prospect", "Data management", "Data Sharing and Stewardship in Science", "Database", "Big data", "03 medical and health sciences", "Behavior and Systematics", "Data mining", "0105 earth and related environmental sciences", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "Management and Reproducibility of Scientific Workflows", "Metadata", "Data curation", "Atmosphere", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Acoustics", "15. Life on land", "Computer science", "1105 Ecology", " Evolution", " Behavior and Systematics", "Surface Processes", "Harmonization", "FOS: Biological sciences", "Computer Science", "Environmental Science", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "soil management", "Research Data", "Environmental DNA in Biodiversity Monitoring"]}, "links": [{"href": "https://doi.org/10.5194/bg-19-3505-2022"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-19-3505-2022", "name": "item", "description": "10.5194/bg-19-3505-2022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-19-3505-2022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-28T00:00:00Z"}}, {"id": "10.5194/bg-21-4301-2024", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2024-10-02", "title": "The effects of land use on soil carbon stocks in the UK", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Greenhouse gas stabilisation in the atmosphere is one of the most pressing challenges of this century. Sequestering carbon in the soil by changing land use and management is increasingly proposed as part of climate mitigation strategies, but our understanding of this is limited in quantitative terms. Here we collate a substantial national and regional data set (15\u2009790\u00a0soil cores) and analyse it in an advanced statistical modelling framework. This produced new estimates of the effects of land use on soil carbon stock (Sc) in the UK, different in magnitude and ranking order from the previous best estimates. Soil carbon stocks were highest in woodlands, followed by rough grazing, semi-natural grasslands, and improved grasslands, and they were lowest in croplands. Estimates were smaller than the previous estimates, partly because of new data, but mainly because the effect is more reliably characterised using a logarithmic transformation of the data. With the very large data set analysed here, the uncertainty in the differences among land uses was small enough to identify consistent mean effects. However, the variability in these effects was large, and this variability was similar across all surveys. This has important implications for agri-environment schemes seeking to sequester carbon in the soil by altering land use, because the effect of a given intervention is very hard to verify. We examined the validity of the \u201cspace-for-time\u201d substitution, and, although the results were not unequivocal, we estimated that the effects are likely to be overestimated by 5\u2009%\u201333\u2009%, depending upon land use.</p></article>", "keywords": ["QE1-996.5", "Ecology", "Life", "QH501-531", "Geology", "QH540-549.5"]}, "links": [{"href": "https://bg.copernicus.org/articles/21/4301/2024/bg-21-4301-2024.pdf"}, {"href": "https://doi.org/10.5194/bg-21-4301-2024"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-21-4301-2024", "name": "item", "description": "10.5194/bg-21-4301-2024", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-21-4301-2024"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-10-02T00:00:00Z"}}, {"id": "10.5194/bg-13-3619-2016", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2016-06-21", "title": "No-tillage lessens soil CO2 emissions the most under arid and sandy soil conditions: results from a meta-analysis", "description": "<p>Abstract. The management of agroecosystems plays a crucial role in the global carbon cycle with soil tillage leading to known organic carbon redistributions within soils and changes in soil CO2 emissions. Yet, discrepancies exist on the impact of tillage on soil CO2 emissions and on the main soil and environmental controls. A meta-analysis was conducted using 46 peer-reviewed publications totaling 174 paired observations comparing CO2 emissions over entire seasons or years from tilled and untilled soils across different climates, crop types and soil conditions with the objective of quantifying tillage impact on CO2 emissions and assessing the main controls. On average, tilled soils emitted 21\uffe2\uff80\uffaf% more CO2 than untilled soils, which corresponded to a significant difference at P&lt;0.05. The difference increased to 29\uffe2\uff80\uffaf% in sandy soils from arid climates with low soil organic carbon content (SOCC\uffe2\uff80\uffaf&lt;\uffe2\uff80\uffaf1\uffe2\uff80\uffaf%) and low soil moisture, but tillage had no impact on CO2 fluxes in clayey soils with high background SOCC (&gt;\uffe2\uff80\uffaf3\uffe2\uff80\uffaf%). Finally, nitrogen fertilization and crop residue management had little effect on the CO2 responses of soils to no-tillage. These results suggest no-tillage is an effective mitigation measure of carbon dioxide losses from dry land soils. They emphasize the importance of including information on soil factors such as texture, aggregate stability and organic carbon content in global models of the carbon cycle.                     </p>", "keywords": ["550", "Soil Science", "CO2 emissions", "630", "soil", "information", "12. Responsible consumption", "Soil", "Life", "QH501-531", "QH540-549.5", "2. Zero hunger", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "QE1-996.5", "Ecology", "Atmosphere", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "6. Clean water", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "environment"]}, "links": [{"href": "https://doi.org/10.5194/bg-13-3619-2016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-13-3619-2016", "name": "item", "description": "10.5194/bg-13-3619-2016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-13-3619-2016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-09-18T00:00:00Z"}}, {"id": "10.5194/bg-13-6121-2016", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2016-11-14", "title": "Contrasting composition of terrigenous organic matter in the dissolved, particulate and sedimentary organic carbon pools on the outer East Siberian Arctic Shelf", "description": "<p>Abstract. Fluvial discharge and coastal erosion of the permafrost-dominated East Siberian Arctic delivers large quantities of terrigenous organic carbon (Terr-OC) to marine waters. The composition and fate of the remobilized Terr-OC needs to be better constrained as it impacts the potential for a climate\uffe2\uff80\uff93carbon feedback. In the present study, the bulk isotope (\uffce\uffb413C and \uffce\uff9414C) and macromolecular (lignin-derived phenols) composition of the cross-shelf exported organic carbon (OC) in different marine pools is evaluated. For this purpose, as part of the SWERUS-C3 expedition (July\uffe2\uff80\uff93September 2014), sediment organic carbon (SOC) as well as water column (from surface and near-bottom seawater) dissolved organic carbon (DOC) and particulate organic carbon (POC) samples were collected along the outer shelves of the Kara Sea, Laptev Sea and East Siberian Sea. The results show that the Lena River and the DOC may have a preferential role in the transport of Terr-OC to the outer shelf. DOC concentrations (740\uffe2\uff80\uff933600\uffe2\uff80\uffaf\uffc2\uffb5g\uffe2\uff80\uffafL\uffe2\uff88\uff921) were 1 order of magnitude higher than POC (20\uffe2\uff80\uff93360\uffe2\uff80\uffaf\uffc2\uffb5g\uffe2\uff80\uffafL\uffe2\uff88\uff921), with higher concentrations towards the Lena River plume. The \uffce\uffb413C signatures in the three carbon pools varied from \uffe2\uff88\uff9223.9\uffe2\uff80\uffaf\uffc2\uffb1\uffe2\uff80\uffaf1.9\uffe2\uff80\uffaf\uffe2\uff80\uffb0 in the SOC, \uffe2\uff88\uff9226.1\uffe2\uff80\uffaf\uffc2\uffb1\uffe2\uff80\uffaf1.2\uffe2\uff80\uffaf\uffe2\uff80\uffb0 in the DOC and \uffe2\uff88\uff9227.1\uffe2\uff80\uffaf\uffc2\uffb1\uffe2\uff80\uffaf1.9\uffe2\uff80\uffaf\uffe2\uff80\uffb0 in the POC. The \uffce\uff9414C values ranged between \uffe2\uff88\uff92395\uffe2\uff80\uffaf\uffc2\uffb1\uffe2\uff80\uffaf83 (SOC), \uffe2\uff88\uff92226\uffe2\uff80\uffaf\uffc2\uffb1\uffe2\uff80\uffaf92 (DOC) and \uffe2\uff88\uff92113\uffe2\uff80\uffaf\uffc2\uffb1\uffe2\uff80\uffaf122\uffe2\uff80\uffaf\uffe2\uff80\uffb0 (POC). These stable and radiocarbon isotopes were also different between the Laptev Sea and the East Siberian Sea. Both DOC and POC showed a depleted and younger trend off the Lena River plume. Further, the Pacific inflow and the sea-ice coverage, which works as a barrier preventing the input of \uffe2\uff80\uff9cyoung\uffe2\uff80\uff9d DOC and POC, seem to have a strong influence in these carbon pools, presenting older and more enriched \uffce\uffb413C signatures under the sea-ice extent. Lignin phenols exhibited higher OC-normalized concentrations in the SOC (0.10\uffe2\uff80\uff932.34\uffe2\uff80\uffafmg\uffe2\uff80\uffafg\uffe2\uff88\uff921\uffe2\uff80\uffafOC) and DOC (0.08\uffe2\uff80\uff932.40\uffe2\uff80\uffafmg\uffe2\uff80\uffafg\uffe2\uff88\uff921\uffe2\uff80\uffafOC) than in the POC (0.03\uffe2\uff80\uff931.14\uffe2\uff80\uffafmg\uffe2\uff80\uffafg\uffe2\uff88\uff921\uffe2\uff80\uffafOC). The good relationship between lignin and \uffce\uff9414C signatures in the DOC suggests that a significant fraction of the outer-shelf DOC comes from \uffe2\uff80\uff9cyoung\uffe2\uff80\uff9d Terr-OC. By contrast, the slightly negative correlation between lignin phenols and \uffce\uff9414C signatures in POC, with higher lignin concentrations in older POC from near-bottom waters, may reflect the off-shelf transport of OC from remobilized permafrost in the nepheloid layer. Syringyl\uffe2\uff80\uffaf\uffe2\uff88\uff95\uffe2\uff80\uffafvanillyl and cinnamyl\uffe2\uff80\uffaf\uffe2\uff88\uff95\uffe2\uff80\uffafvannillyl phenol ratios presented distinct clustering between DOC, POC and SOC, implying that those pools may be carrying different Terr-OC of partially different origin. Moreover, 3,5-dihydroxybenzoic acid to vanillyl phenol ratios and p-coumaric acid to ferulic acid ratios, used as a diagenetic indicators, enhanced in POC and SOC, suggesting more degradation within these pools. Overall, the key contrast between enhanced lignin yields both in the youngest DOC and the oldest POC samples reflects a significant decoupling of terrestrial OC sources and pathways.                     </p>", "keywords": ["QE1-996.5", "ALKALINE CUO OXIDATION; SE LAPTEV SEA; LENA RIVER; TERRESTRIAL CARBON; MARINE-SEDIMENTS; EARLY DIAGENESIS; COASTAL EROSION; NEUTRAL SUGARS; CLIMATE-CHANGE; AMAZON RIVER", "Ecology", "Life", "13. Climate action", "QH501-531", "Geology", "14. Life underwater", "01 natural sciences", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://bg.copernicus.org/articles/13/6121/2016/bg-13-6121-2016.pdf"}, {"href": "https://doi.org/10.5194/bg-13-6121-2016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-13-6121-2016", "name": "item", "description": "10.5194/bg-13-6121-2016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-13-6121-2016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-06-28T00:00:00Z"}}, {"id": "10.5194/bg-13-6565-2016", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2016-12-15", "title": "Microbial Activity Promoted With Organic Carbon Accumulation In Macroaggregates Of Paddy Soils Under Long-Term Rice Cultivation", "description": "<p>Abstract. While soil organic carbon (SOC) accumulation and stabilization has been increasingly the focus of ecosystem properties, how it could be linked to soil biological activity enhancement has been poorly assessed. In this study, topsoil samples were collected from a series of rice soils shifted from salt marshes for 0, 50, 100, 300 and 700\uffc2\uffa0years from a coastal area of eastern China. Soil aggregates were fractioned into different sizes of coarse sand (200\uffe2\uff80\uff932000\uffe2\uff80\uffaf\uffc2\uffb5m), fine sand (20\uffe2\uff80\uff93200\uffe2\uff80\uffaf\uffc2\uffb5m), silt (2\uffe2\uff80\uff9320\uffe2\uff80\uffaf\uffc2\uffb5m) and clay (&lt;\uffe2\uff80\uffaf2\uffe2\uff80\uffaf\uffc2\uffb5m), using separation with a low-energy dispersion protocol. Soil properties were determined to investigate niche specialization of different soil particle fractions in response to long-term rice cultivation, including recalcitrant and labile organic carbon, microbial diversity of bacterial, archaeal and fungal communities, soil respiration and enzyme activity. The results showed that the mass proportion both of coarse-sand (2000\uffe2\uff80\uff93200\uffe2\uff80\uffaf\uffc2\uffb5m) and clay (&lt;\uffe2\uff80\uffaf2\uffe2\uff80\uffaf\uffc2\uffb5m) fractions increased with prolonged rice cultivation, but the aggregate size fractions were dominated by fine-sand (200\uffe2\uff80\uff9320\uffe2\uff80\uffaf\uffc2\uffb5m) and silt (20\uffe2\uff80\uff932\uffe2\uff80\uffaf\uffc2\uffb5m) fractions across the chronosequence. SOC was highly enriched in coarse-sand fractions (40\uffe2\uff80\uff9360\uffe2\uff80\uffafg\uffe2\uff80\uffafkg\uffe2\uff88\uff921) and moderately in clay fractions (20\uffe2\uff80\uff9325\uffe2\uff80\uffafg\uffe2\uff80\uffafkg\uffe2\uff88\uff921), but was depleted in silt fractions (\uffe2\uff88\uffbc\uffe2\uff80\uff8910\uffe2\uff80\uffafg\uffe2\uff80\uffafkg\uffe2\uff88\uff921). The recalcitrant carbon pool was higher (33\uffe2\uff80\uff9340\uffe2\uff80\uffaf% of SOC) in both coarse-sand and clay fractions than in fine-sand and silt fractions (20\uffe2\uff80\uff9329\uffe2\uff80\uffaf% of SOC). However, the ratio of labile organic carbon (LOC) to SOC showed a weakly decreasing trend with decreasing size of aggregate fractions. Total soil DNA (deoxyribonucleic acid) content in the size fractions followed a similar trend to that of SOC. Despite the largely similar diversity between the fractions, 16S ribosomal gene abundance of bacteria and of archaeal were concentrated in both coarse-sand and clay fractions. Being the highest generally in coarse-sand fractions, 18S rRNA gene abundance of fungi decreased sharply but the diversity gently, with decreasing size of the aggregate fractions. The soil respiration quotient (ratio of respired CO2\uffe2\uff80\uff93C to SOC) was the highest in the silt fraction, followed by the fine-sand fraction, but the lowest in coarse-sand and clay fractions in the rice soils cultivated over 100\uffc2\uffa0years, whereas the microbial metabolic quotient was lower in coarse-sand-sized fractions than in other fractions. Soil respiration was higher in the silt fraction than in other fractions for the rice soils. For the size fractions other than the clay fraction, enzyme activity was increased with prolonged rice cultivation, whereas soil respiration appeared to have a decreasing trend. Only in the coarse-sand fraction was both microbial gene abundance and enzyme activity well correlated to SOC and LOC content, although the chemical stability and respiratory of SOC were similar between coarse-sand and clay fractions. Thus, biological activity was generally promoted with LOC accumulation in the coarse-sand-sized macroaggregates of the rice soils, positively responding to prolonged rice cultivation management. The finding here provides a mechanistic understanding of soil organic carbon turnover and microbial community succession at fine scale of soil aggregates that have evolved along with anthropogenic activity of rice cultivation in the field.                     </p>", "keywords": ["2. Zero hunger", "QE1-996.5", "Ecology", "Life", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "Geology", "04 agricultural and veterinary sciences", "14. Life underwater", "15. Life on land", "QH540-549.5"]}, "links": [{"href": "https://doi.org/10.5194/bg-13-6565-2016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-13-6565-2016", "name": "item", "description": "10.5194/bg-13-6565-2016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-13-6565-2016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-12-15T00:00:00Z"}}, {"id": "10.5194/bg-14-1969-2017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2016-11-28", "title": "Modelling sun-induced fluorescence and photosynthesis with a land surface model at local and regional scales in northern Europe", "description": "<p>Abstract. Recent satellite observations of sun-induced chlorophyll fluorescence (SIF) are thought to provide a large-scale proxy for gross primary production (GPP), thus providing a new way to assess the performance of land surface models (LSMs). In this study, we assessed how well SIF is able to predict GPP in the Fenno-Scandinavian region and what potential limitations for its application exist. We implemented a SIF model into the JSBACH LSM and used active leaf level chlorophyll fluorescence measurements (ChlF) to evaluate the performance of the SIF module at a coniferous forest at Hyyti\uffc3\uffa4l\uffc3\uffa4, Finland. We also compared simulated GPP and SIF at four Finnish micrometeorological flux measurement sites to observed GPP as well as to satellite observed SIF. Finally, we conducted a regional model simulation for the Fenno-Scandinavian region with JSBACH and compared the results to SIF retrievals from the GOME-2 (Global Ozone Monitoring Experiment-2) space-borne spectrometer and to observation-based regional GPP estimates. Both observations and simulations revealed that SIF can be used to estimate GPP at both site and regional scales. The GOME-2 based SIF was a better proxy for GPP than the remotely sensed fAPAR (fraction of absorbed photosynthetic active radiation by vegetation), even though high SIF values occurred during early spring at the northern latitudes, although these are not likely to be associated with photosynthesis.                         </p>", "keywords": ["EDDY COVARIANCE", "DATA ASSIMILATION SYSTEM", "FLUX MEASUREMENTS", "SCOTS PINE FOREST", "01 natural sciences", "7. Clean energy", "Ecology", " Evolution", " Behavior and Systematics; Earth-Surface Processes", "CO2 EXCHANGE", "PHOTOSYSTEM-II", "Life", "QH501-531", "QH540-549.5", "SDG 15 - Life on Land", "0105 earth and related environmental sciences", "QE1-996.5", "Ecology", "BOREAL CONIFEROUS FOREST", "BIOCHEMICAL-MODEL", "Forestry", "Geology", "15. Life on land", "TERRESTRIAL CHLOROPHYLL FLUORESCENCE", "Physical sciences", "Environmental sciences", "13. Climate action", "ITC-ISI-JOURNAL-ARTICLE", "ENERGY-BALANCE", "ITC-GOLD"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/585578/2/bg-14-1969-2017.pdf"}, {"href": "https://bg.copernicus.org/articles/14/1969/2017/bg-14-1969-2017.pdf"}, {"href": "https://doi.org/10.5194/bg-14-1969-2017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-14-1969-2017", "name": "item", "description": "10.5194/bg-14-1969-2017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-14-1969-2017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-11-28T00:00:00Z"}}, {"id": "10.5194/bg-14-45-2017", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2017-01-06", "title": "Development and evaluation of an ozone deposition scheme for coupling to a terrestrial biosphere model", "description": "<p>Abstract. Ozone (O3) is a toxic air pollutant that can damage plant leaves and substantially affect the plant's gross primary production (GPP) and health. Realistic estimates of the effects of tropospheric anthropogenic O3 on GPP are thus potentially important to assess the strength of the terrestrial biosphere as a carbon sink. To better understand the impact of ozone damage on the terrestrial carbon cycle, we developed a module to estimate O3 uptake and damage of plants for a state-of-the-art global terrestrial biosphere model called OCN. Our approach accounts for ozone damage by calculating (a)\uffc2\uffa0O3 transport from 45\uffe2\uff80\uffafm height to leaf level, (b)\uffc2\uffa0O3 flux into the leaf, and (c)\uffc2\uffa0ozone damage of photosynthesis as a function of the accumulated O3 uptake over the lifetime of a leaf.  A comparison of modelled canopy conductance, GPP, and latent heat to FLUXNET data across European forest and grassland sites shows a general good performance of OCN including ozone damage. This comparison provides a good baseline on top of which ozone damage can be evaluated. In comparison to literature values, we demonstrate that the new model version produces realistic O3 surface resistances, O3 deposition velocities, and stomatal to total O3 flux ratios. A sensitivity study reveals that key metrics of the air-to-leaf O3 transport and O3 deposition, in particular the stomatal O3 uptake, are reasonably robust against uncertainty in the underlying parameterisation of the deposition scheme. Nevertheless, correctly estimating canopy conductance plays a pivotal role in the estimate of cumulative O3 uptake. We further find that accounting for stomatal and non-stomatal uptake processes substantially affects simulated plant O3 uptake and accumulation, because aerodynamic resistance and non-stomatal O3 destruction reduce the predicted leaf-level O3 concentrations. Ozone impacts on GPP and transpiration in a Europe-wide simulation indicate that tropospheric O3 impacts the regional carbon and water cycling less than expected from previous studies. This study presents a first step towards the integration of atmospheric chemistry and ecosystem dynamics modelling, which would allow for assessing the wider feedbacks between vegetation ozone uptake and tropospheric ozone burden.                     </p>", "keywords": ["Earth sciences", "QE1-996.5", "info:eu-repo/classification/ddc/550", "550", "Ecology", "Life", "ddc:550", "13. Climate action", "QH501-531", "Geology", "15. Life on land", "7. Clean energy", "QH540-549.5"]}, "links": [{"href": "https://bg.copernicus.org/articles/14/45/2017/bg-14-45-2017.pdf"}, {"href": "https://doi.org/10.5194/bg-14-45-2017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-14-45-2017", "name": "item", "description": "10.5194/bg-14-45-2017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-14-45-2017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-07-28T00:00:00Z"}}, {"id": "10.5194/bg-19-4387-2022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2022-02-07", "title": "Consistent responses of vegetation gas exchange to elevated atmospheric CO2 emerge from heuristic and optimization models", "description": "<p>Abstract. Elevated atmospheric CO2 concentration is expected to increase leaf CO2 assimilation rates, thus promoting plant growth and increasing leaf area. It also decreases stomatal conductance, allowing water savings that have been hypothesized to drive large-scale greening, in particular in arid and semiarid climates. However, the increase in leaf area could reduce the ameliorating effect of elevated CO2 concentration on soil water depletion. The net effect of elevated CO2 on leaf- and canopy-level gas exchange thus remains unclear. To address this question, a heuristic model based on the Partitioning of Equilibrium Transpiration and Assimilation (PETA) hypothesis and a model based on stomatal optimization theory are used and their outcomes compared. Predicted relative changes in leaf- and canopy-level gas exchange rates are used as a metric of responses to changes in atmospheric CO2 concentration. Both models predict reductions of leaf-level transpiration rate due to decreased stomatal conductance under elevated CO2, but negligible (PETA) or no (optimization) changes in canopy-level transpiration due to the compensatory effect of increased leaf area. Leaf- and canopy-level CO2 assimilation are predicted to increase, with an amplification of the CO2 fertilization effect at the canopy-level due to the enhanced leaf area. The expected increase in vapor pressure deficit (VPD) under warmer conditions is predicted to decrease the sensitivity of gas exchange to atmospheric CO2 concentration in both models except at growth temperatures lower than the photosynthetic thermal optimum. The consistent predictions by different models that canopy-level transpiration varies little under elevated CO2 due to combined stomatal conductance reduction and leaf area increase highlights the coordination of physiological and morphological characteristics in vegetation to maximize resource use (here water) under altered atmospheric conditions.                         </p>", "keywords": ["580", "0106 biological sciences", "QE1-996.5", "Ecology", "Geology", "15. Life on land", "01 natural sciences", "Geovetenskap och relaterad milj\u00f6vetenskap", "Physical Geography", "Life", "13. Climate action", "QH501-531", "Earth and Related Environmental Sciences", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://pub.epsilon.slu.se/28959/1/manzoni-s-et-al-20220926.pdf"}, {"href": "https://bg.copernicus.org/articles/19/4387/2022/bg-19-4387-2022.pdf"}, {"href": "https://doi.org/10.5194/bg-19-4387-2022"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-19-4387-2022", "name": "item", "description": "10.5194/bg-19-4387-2022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-19-4387-2022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-02-07T00:00:00Z"}}, {"id": "10.5194/bg-19-5041-2022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2022-11-02", "title": "Pore network modeling as a new tool for determining  gas diffusivity in peat", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Peatlands are globally significant carbon stocks and may become major sources of the greenhouse gases (GHGs) carbon dioxide and methane in a changing climate and under anthropogenic management pressure. Diffusion is the dominant gas transport mechanism in peat; therefore, a proper knowledge of the soil gas diffusion coefficient is important for the estimation of GHG emissions from peatlands. Pore network modeling (PNM) is a potential tool for the determination of gas diffusivity in peat, as it explicitly connects the peat microstructure and the characteristics of the peat pore network to macroscopic gas transport properties. In the present work, we extracted macropore networks from three-dimensional X-ray micro-computed tomography (\u00b5CT) images of peat samples and simulated gas diffusion in these networks using PNM. These results were compared to the soil gas diffusion coefficients determined from the same samples in the laboratory using the diffusion chamber method. The measurements and simulations were conducted for peat samples from three depths. The soil gas diffusion coefficients were determined under varying water contents adjusted in a pressure plate apparatus. We also assessed the applicability of commonly used gas diffusivity models to peat. The laboratory measurements showed a decrease in gas diffusivity with depth due to a decrease in air-filled porosity and pore space connectivity. However, gas diffusivity was not extremely low close to saturation, which may indicate that the structure of the macropore network is such that it enables the presence of connected diffusion pathways through the peat matrix, even in wet conditions. The traditional gas diffusivity models were not very successful in predicting the soil gas diffusion coefficient. This may indicate that the microstructure of peat differs considerably from the structure of mineral soils and other kinds of porous materials for which these models have been constructed and calibrated. By contrast, the pore network simulations reproduced the laboratory-determined soil gas diffusion coefficients rather well. Thus, the combination of the \u00b5CT and PNM methods may offer a promising alternative to the traditional estimation of soil gas diffusivity through laboratory measurements.                     </p></article>", "keywords": ["QE1-996.5", "Ecology", "POROUS-MEDIA", "FLOW", "GASEOUS-DIFFUSION", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "Environmental sciences", "TRANSPORT-PROPERTIES", "SOIL", "CARBON-DIOXIDE", "METHANE", "Life", "13. Climate action", "QH501-531", "NORTHERN PEATLANDS", "0401 agriculture", " forestry", " and fisheries", "COEFFICIENT", "EMISSIONS", "QH540-549.5"]}, "links": [{"href": "https://doi.org/10.5194/bg-19-5041-2022"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-19-5041-2022", "name": "item", "description": "10.5194/bg-19-5041-2022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-19-5041-2022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-05-30T00:00:00Z"}}, {"id": "10.5194/bg-22-1907-2025", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2025-04-17", "title": "Modelling the effect of climate\u2013substrate interactions on soil organic matter decomposition with the Jena Soil Model", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Soil organic carbon (SOC) is the largest terrestrial carbon pool, but it is still uncertain how it will respond to climate change. Specifically, the fate of SOC due to concurrent changes in soil temperature and moisture is uncertain. It is generally accepted that microbially driven SOC decomposition will increase with warming, provided that sufficient soil moisture (and hence sufficient C substrate) is available for microbial decomposition. We use a mechanistic, microbially explicit SOC decomposition model, the Jena Soil Model (JSM), and focus on the depolymerisation of litter and microbial residues by microbes at different soil depths as well as the sensitivities of the depolymerisation of litter and microbial residues to soil warming and different drought intensities. In a series of model experiments, we test the effects of soil warming and droughts on SOC stocks, in combination with different temperature sensitivities (Q10 values) for the half-saturation constant Km (Q10,Km) associated with the breakdown of litter or microbial residues. We find that soil warming can lead to SOC losses at a timescale of a century and that these losses are highest in the topsoil (compared with the subsoil). Droughts can alleviate the effects of soil warming and reduce SOC losses, by posing strong microbial limitation on the depolymerisation rates, and even lead to SOC accumulation, provided that litter inputs remain unchanged. While absolute SOC losses were highest in the topsoil, we found that the temperature and moisture sensitivities of Km were important drivers of SOC losses in the subsoil \u2013 where microbial biomass is low and mineral-associated OC is high. Furthermore, a combination of drought and different Q10,Km values associated with different enzymes for the breakdown of litter or microbial residues had counteracting effects on the overall SOC balance. In this study, we show that, while absolute SOC changes driven by soil warming and drought are highest in the topsoil, SOC in the subsoil is more sensitive to warming and drought due to the intricate interplay between Km, temperature, soil moisture, and mineral-associated SOC.                     </p></article>", "keywords": ["QE1-996.5", "Ecology", "Life", "QH501-531", "Geology", "QH540-549.5"]}, "links": [{"href": "https://bg.copernicus.org/articles/22/1907/2025/bg-22-1907-2025.pdf"}, {"href": "https://doi.org/10.5194/bg-22-1907-2025"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-22-1907-2025", "name": "item", "description": "10.5194/bg-22-1907-2025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-22-1907-2025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-04-17T00:00:00Z"}}, {"id": "10.5194/bg-22-2691-2025", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:58Z", "type": "Journal Article", "created": "2025-06-13", "title": "Validating laboratory predictions of soil rewetting respiration pulses using field data", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Improved understanding of the mechanisms driving heterotrophic CO2 emissions after rewetting of a dry soil may improve projections of future soil carbon fate. While drying and rewetting (DRW) under laboratory conditions have demonstrated that heterotrophic CO2 emissions depend on DRW features and soil and environmental conditions, these laboratory insights have not been validated in field conditions. To this aim, we collated mean respiration rates over 48\u2009h after rewetting from two data sources: 37 laboratory studies reporting data for more than\u00a03 DRW cycles (laboratory respiration, LR) and\u00a06 field datasets recording hourly heterotrophic respiration and soil moisture (field respiration, FR). LR and FR were explained by six predictors using random forest algorithms and partial dependence plots. Results indicated that the most important drivers of LR and FR were SOC and temperature, respectively. Both LR and FR increased with increasing SOC and temperature. LR increased with soil dryness before rewetting, but this trend was less clear in FR. LR decreased with soil moisture increments at rewetting, while FR increased with soil moisture increments. LR was higher in soils from humid climates than from arid climates, but this effect was not observed in FR. We concluded that laboratory insights could be partly validated with current datasets. Caution should be taken when extending laboratory insights for predicting fluxes in ecosystems.</p></article>", "keywords": ["QE1-996.5", "Ecology", "Life", "QH501-531", "Geology", "QH540-549.5"]}, "links": [{"href": "https://bg.copernicus.org/articles/22/2691/2025/bg-22-2691-2025.pdf"}, {"href": "https://doi.org/10.5194/bg-22-2691-2025"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-22-2691-2025", "name": "item", "description": "10.5194/bg-22-2691-2025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-22-2691-2025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-06-13T00:00:00Z"}}, {"id": "10.5194/egusphere-2024-1092", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:20:00Z", "type": "Journal Article", "created": "2024-04-19", "title": "Mechanisms of soil organic carbon and nitrogen stabilization in mineral associated organic matter \u2013 Insights from modelling in phase space", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Understanding the mechanisms of plant-derived carbon (C) and nitrogen (N) transformation and stabilization in soil is fundamental for predicting soil capacity to mitigate climate change and support other soil functions. The decomposition of plant residues and particulate organic matter (POM) contributes to the formation of mineral associated (on average more stable) organic matter (MAOM) in soil. MAOM is formed from the binding of dissolved organic matter (ex vivo pathway) or microbial necromass and bioproducts (in vivo pathway) to minerals and metal colloids. Which of these two soil organic matter (SOM) stabilization pathways is more important and under which conditions remains an open question. To address this question, we propose a novel diagnostic model to describe C and N dynamics in MAOM as a function of the dynamics of residues and POM decomposition. Focusing on relations among soil compartments (i.e., modelling in phase space) rather than time trajectories allows isolating the fundamental processes underlying stabilization. Using this diagnostic model in combination with a database of ~ 40 studies in which residue C and N were tracked into POM and MAOM, we found that MAOM is predominantly fuelled by necromass produced by microbes decomposing residues and POM\u2014the so-called \u2018in vivo\u2019 pathway of stabilization. The relevance of the in vivo pathway is higher in clayey soils, but lower in C rich soils and with N poor added residues. Overall, our novel modelling in phase space proved to be a sound diagnostic tool for the mechanistic investigation of soil C dynamics and supported the current understanding of the critical role of both microbial transformation and mineral capacity for the stabilization of C in mineral soils.                         </p></article>", "keywords": ["2. Zero hunger", "QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "Geology", "15. Life on land", "QH540-549.5"], "contacts": [{"organization": "Stefano Manzoni, M. Francesca Cotrufo,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5194/egusphere-2024-1092"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/egusphere-2024-1092", "name": "item", "description": "10.5194/egusphere-2024-1092", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/egusphere-2024-1092"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-04-19T00:00:00Z"}}, {"id": "10.5194/egusphere-2024-1994", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:20:00Z", "type": "Journal Article", "created": "2024-08-15", "title": "Eddy covariance fluxes of CO2, CH4 and N2O on a drained peatland forest after clearcutting", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Even-aged forestry based on clearcut harvesting, planting, and one to three thinnings is currently the dominant management approach in Fennoscandia. However, our understanding of the greenhouse gas (GHG) emissions following clearcutting remains limited, particularly on drained peatland forests. In this study, we report eddy covariance-based (EC) net emissions of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) from a boreal fertile drained peatland forest one year after the harvest. Our results show that on annual scale, the site was a net CO2 source. The CO2 emissions dominate the total annual GHG balance (23.3 t CO2-eq ha-1 a-1, 82.5 % of the total), while the role of N2O emissions (4.8 t CO2-eq ha-1 a-1, 17.1 %) was also significant. The site was a weak CH4 source (0.1 t CO2-eq ha-1 a-1, 0.4 %). A statistical model was developed to estimate surface-type-specific CH4 and N2O emissions. The model was based on air temperature and fraction of specific surface-types within the EC flux footprint. The surface-types were classified using unmanned aerial vehicle (UAV) spectral imaging and machine learning. Based on the statistical models, the highest surface-type specific CH4 emissions occurred from plant-covered ditches and exposed peat, while the surfaces dominated by living trees, dead wood, and litter along with plant-covered ditches were the main contributors to N2O emissions. Our study provides new insights into how CH4 and N2O fluxes are affected by surface-type variation across clearcutting areas in boreal forested peatlands. Our findings highlight the need for integrating surface-type-specific flux modelling, EC-based data, and chamber-based flux measurements to comprehend the GHG emissions following clearcutting. Results strengthen the accumulated evidence that recently clearcut peatland forests are significant GHG sources.                         </p></article>", "keywords": ["QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "11. Sustainability", "Geology", "15. Life on land", "QH540-549.5", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.5194/egusphere-2024-1994"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/egusphere-2024-1994", "name": "item", "description": "10.5194/egusphere-2024-1994", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/egusphere-2024-1994"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-08-15T00:00:00Z"}}, {"id": "10.5194/bg-16-3747-2019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2019-10-02", "title": "Reviews and syntheses: Turning the challenges of partitioning ecosystem evaporation and transpiration into opportunities", "description": "<p>Abstract. Evaporation (E) and transpiration (T) respond differently to ongoing changes in climate, atmospheric composition, and land use. It is difficult to partition ecosystem-scale evapotranspiration (ET) measurements into E and T, which makes it difficult to validate satellite data and land surface models. Here, we review current progress in partitioning E and T and provide a prospectus for how to improve theory and observations going forward. Recent advancements in analytical techniques create new opportunities for partitioning E and T at the ecosystem scale, but their assumptions have yet to be fully tested. For example, many approaches to partition E and T rely on the notion that plant canopy conductance and ecosystem water use efficiency exhibit optimal responses to atmospheric vapor pressure deficit (D). We use observations from 240 eddy covariance flux towers to demonstrate that optimal ecosystem response to D is a reasonable assumption, in agreement with recent studies, but more analysis is necessary to determine the conditions for which this assumption holds. Another critical assumption for many partitioning approaches is that ET can be approximated as T during ideal transpiring conditions, which has been challenged by observational studies. We demonstrate that T can exceed 95\uffe2\uff80\uff89% of ET from certain ecosystems, but other ecosystems do not appear to reach this value, which suggests that this assumption is ecosystem-dependent with implications for partitioning. It is important to further improve approaches for partitioning E and T, yet few multi-method comparisons have been undertaken to date. Advances in our understanding of carbon\uffe2\uff80\uff93water coupling at the stomatal, leaf, and canopy level open new perspectives on how to quantify T via its strong coupling with photosynthesis. Photosynthesis can be constrained at the ecosystem and global scales with emerging data sources including solar-induced fluorescence, carbonyl sulfide flux measurements, thermography, and more. Such comparisons would improve our mechanistic understanding of ecosystem water fluxes and provide the observations necessary to validate remote sensing algorithms and land surface models to understand the changing global water cycle.                     </p>", "keywords": ["550", "STOMATAL CONDUCTANCE", "0207 environmental engineering", "02 engineering and technology", "551", "01 natural sciences", "Life", "CARBONYL SULFIDE COS", "QH501-531", "SOIL-WATER", "QH540-549.5", "0105 earth and related environmental sciences", "QE1-996.5", "info:eu-repo/classification/ddc/550", "VAPOR-PRESSURE DEFICIT", "RAINFALL INTERCEPTION", "Ecology", "ddc:550", "Biology and Life Sciences", "Geology", "STABLE-ISOTOPE", "15. Life on land", "540", "6. Clean water", "SURFACE-ENERGY BALANCE", "Environmental sciences", "Earth sciences", "Ecology", " evolutionary biology", "13. Climate action", "Earth and Environmental Sciences", "NET PRIMARY PRODUCTIVITY", "WATER-USE EFFICIENCY", "Geosciences", "EDDY COVARIANCE DATA"]}, "links": [{"href": "https://bg.copernicus.org/articles/16/3747/2019/bg-16-3747-2019.pdf"}, {"href": "https://doi.org/10.5194/bg-16-3747-2019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-16-3747-2019", "name": "item", "description": "10.5194/bg-16-3747-2019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-16-3747-2019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-10-01T00:00:00Z"}}, {"id": "10.5194/bg-16-4851-2019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2019-12-20", "title": "\"Global biosphere\u2013climate interaction: a causal appraisal of observations and models over multiple temporal scales\"", "description": "<p>Abstract. Improving the skill of Earth system models (ESMs) in representing climate\uffe2\uff80\uff93vegetation interactions is crucial to enhance our predictions of future climate and ecosystem functioning. Therefore, ESMs need to correctly simulate the impact of climate on vegetation, but likewise feedbacks of vegetation on climate must be adequately represented. However, model predictions at large spatial scales remain subjected to large uncertainties, mostly due to the lack of observational patterns to benchmark them. Here, the bidirectional nature of climate\uffe2\uff80\uff93vegetation interactions is explored across multiple temporal scales by adopting a spectral Granger causality framework that allows identification of potentially co-dependent variables. Results based on global and multi-decadal records of remotely sensed leaf area index (LAI) and observed atmospheric data show that the climate control on vegetation variability increases with longer temporal scales, being higher at inter-annual than multi-month scales. Globally, precipitation is the most dominant driver of vegetation at monthly scales, particularly in (semi-)arid regions. The seasonal LAI variability in energy-driven latitudes is mainly controlled by radiation, while air temperature controls vegetation growth and decay in high northern latitudes at inter-annual scales. These observational results are used as a benchmark to evaluate four ESM simulations from the Coupled Model Intercomparison Project Phase\uffc2\uffa05 (CMIP5). Findings indicate a tendency of ESMs to over-represent the climate control on LAI dynamics and a particular overestimation of the dominance of precipitation in arid and semi-arid regions at inter-annual scales. Analogously, CMIP5 models overestimate the control of air temperature on seasonal vegetation variability, especially in forested regions. Overall, climate impacts on LAI are found to be stronger than the feedbacks of LAI on climate in both observations and models; in other words, local climate variability leaves a larger imprint on temporal LAI dynamics than vice versa. Note however that while vegetation reacts directly to its local climate conditions, the spatially collocated character of the analysis does not allow for the identification of remote feedbacks, which might result in an underestimation of the biophysical effects of vegetation on climate. Nonetheless, the widespread effect of LAI variability on radiation, as observed over the northern latitudes due to albedo changes, is overestimated by the CMIP5 models. Overall, our experiments emphasise the potential of benchmarking the representation of particular interactions in online ESMs using causal statistics in combination with observational data, as opposed to the more conventional evaluation of the magnitude and dynamics of individual variables.                     </p>", "keywords": ["0301 basic medicine", "Evolution", "LAND-SURFACE MODELS", "01 natural sciences", "RECENT TRENDS", "03 medical and health sciences", "Behavior and Systematics", "Life", "QH501-531", "NET PRIMARY PRODUCTION", "QH540-549.5", "Earth-Surface Processes", "0105 earth and related environmental sciences", "QE1-996.5", "EARTH SYSTEM MODEL", "Ecology", "LEAF-AREA INDEX", "Biology and Life Sciences", "Geology", "15. Life on land", "DATA SETS", "13. Climate action", "Earth and Environmental Sciences", "FEEDBACKS", "CO2", "VEGETATION", "SENSITIVITY"]}, "links": [{"href": "https://bg.copernicus.org/articles/16/4851/2019/bg-16-4851-2019.pdf"}, {"href": "https://doi.org/10.5194/bg-16-4851-2019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-16-4851-2019", "name": "item", "description": "10.5194/bg-16-4851-2019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-16-4851-2019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-12-20T00:00:00Z"}}, {"id": "10.5194/bg-16-785-2019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:57Z", "type": "Journal Article", "created": "2019-02-12", "title": "Automatic high-frequency measurements of full soil greenhouse gas fluxes in a tropical forest", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Measuring in situ soil fluxes of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) continuously at high frequency requires appropriate technology. We tested the combination of a commercial automated soil CO2 flux chamber system (LI-8100A) with a CH4 and N2O analyzer (Picarro G2308) in a tropical rainforest for 4\u00a0months. A chamber closure time of 2\u2009min was sufficient for a reliable estimation of CO2 and CH4 fluxes (100\u2009% and 98.5\u2009% of fluxes were above minimum detectable flux \u2013 MDF, respectively). This closure time was generally not suitable for a reliable estimation of the low N2O fluxes in this ecosystem but was sufficient for detecting rare major peak events. A closure time of 25\u2009min was more appropriate for reliable estimation of most N2O fluxes (85.6\u2009% of measured fluxes are above MDF\u2009\u00b1\u20090.002\u2009nmol\u2009m\u22122\u2009s\u22121). Our study highlights the importance of adjusted closure time for each gas.                     </p></article>", "keywords": ["rain-forest", "nitrous-oxide", "Environmental management", "550", "[SDV]Life Sciences [q-bio]", "spatial variation", "01 natural sciences", "630", "land-use change", "Life", "QH501-531", "Meteorology & Atmospheric Sciences", "biogeochemical controls", "Physical geography and environmental geoscience", "Biology", "QH540-549.5", "0105 earth and related environmental sciences", "QE1-996.5", "Ecology", "Physics", "n2o", "emissions", "land-use change ; nitrous-oxide ; rain-forest ;biogeochemical controls ; chamber measurements ; spatial variation ; co2 ;emissions; n2o ; respiration", "Geology", "04 agricultural and veterinary sciences", "Biological Sciences", "15. Life on land", "Climate Action", "[SDV] Life Sciences [q-bio]", "Chemistry", "13. Climate action", "Earth Sciences", "co2", "0401 agriculture", " forestry", " and fisheries", "chamber measurements", "Climate Change Impacts and Adaptation", "Environmental Sciences", "respiration"]}, "links": [{"href": "https://bg.copernicus.org/articles/16/785/2019/bg-16-785-2019.pdf"}, {"href": "https://escholarship.org/content/qt73p9116t/qt73p9116t.pdf"}, {"href": "https://doi.org/10.5194/bg-16-785-2019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-16-785-2019", "name": "item", "description": "10.5194/bg-16-785-2019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-16-785-2019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-08-15T00:00:00Z"}}, {"id": "10.5194/bg-10-2671-2013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2012-07-28", "title": "Nitrous Oxide Emissions From European Agriculture - An Analysis Of Variability And Drivers Of Emissions From Field Experiments", "description": "<p>Abstract. Nitrous oxide emissions from a network of agricultural experiments in Europe and Zimbabwe were used to explore the relative importance of site and management controls of emissions. At each site, a selection of management interventions were compared within replicated experimental designs in plot based experiments. Arable experiments were conducted at Beano in Italy, El Encin in Spain, Foulum in Denmark, Log\uffc3\uffa5rden in Sweden, Maulde in Belgium, Paulinenaue in Germany, Harare in Zimbabwe and Tulloch in the UK. Grassland experiments were conducted at Crichton, Nafferton and Peaknaze in the UK, G\uffc3\uffb6d\uffc3\uffb6ll\uffc3\uffb6 in Hungary, Rzecin in Poland, Zarnekow in Germany and Theix in France. Nitrous oxide emissions were measured at each site over a period of at least two years using static chambers. Emissions varied widely between sites and as a result of manipulation treatments. Average site emissions (throughout the study period) varied between 0.04 and 21.21 kg N2O-N ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921, with the largest fluxes and variability associated with the grassland sites. Total nitrogen addition was found to be the single most important determinant of emissions, accounting for 15% of the variance (using linear regression) in the data from the arable sites (p &lt; 0.0001), and 77% in the grassland sites. The annual emissions from arable sites were significantly greater than those that would be predicted by IPCC default emission factors. Variability in N2O within sites that occurred as a result of manipulation treatments was greater than that resulting from site to site and year to year variation, highlighting the importance of management interventions in contributing to greenhouse gas mitigation.                         </p>", "keywords": ["Technology", "Atmospheric sciences", "550", "FILLED PORE-SPACE;N2O EMISSIONS;GRASSLAND SYSTEMS;CO2 EMISSIONS;SOILS;MANAGEMENT;FLUXES;FERTILIZATION;CROP;NO", "Economics", "[SDV]Life Sciences [q-bio]", "Environmental protection", "630", "Agricultural and Biological Sciences", "Engineering", "Life", "QH501-531", "FERTILIZATION", "Arable land", "QH540-549.5", "2. Zero hunger", "QE1-996.5", "GRASSLAND SYSTEMS", "Nitrous oxide", "Ecology", "Agricultura", "Life Sciences", "Agriculture", "Hydrology (agriculture)", "Geology", "Agriculture-Farming", "Qu\u00edmica", "04 agricultural and veterinary sciences", "Chemical Engineering", "Grassland", "[SDV] Life Sciences [q-bio]", "Physical Sciences", "FLUXES", "Biogeochemical Cycling of Nutrients in Aquatic Ecosystems", "571", "Soil Science", "N2O EMISSIONS", "Greenhouse gas", "Environmental science", "NO", "MANAGEMENT", "Environmental Chemistry", "Chemical and Biological Technologies for Odor Control", "Biology", "FOS: Chemical engineering", "Process Chemistry and Technology", "Nitrogen Dynamics", "Production", "CROP", "FOS: Earth and related environmental sciences", "15. Life on land", "FILLED PORE-SPACE", "Agronomy", "SOILS", "Geotechnical engineering", "CO2 EMISSIONS", "13. Climate action", "Earth and Environmental Sciences", "FOS: Biological sciences", "Environmental Science", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems", "Fertilizer Applications"]}, "links": [{"href": "https://air.uniud.it/bitstream/11390/876174/1/Rees_et_al_2013.pdf"}, {"href": "https://univ-lyon1.hal.science/hal-02522217/file/2013_Rees_Biogeosciences_1.pdf"}, {"href": "https://doi.org/10.5194/bg-10-2671-2013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-10-2671-2013", "name": "item", "description": "10.5194/bg-10-2671-2013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-10-2671-2013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-07-27T00:00:00Z"}}, {"id": "10.5194/bg-10-3691-2013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2013-01-14", "title": "A meta-analysis on the impacts of partial cutting on forest structure and carbon storage", "description": "<p>Abstract. Partial cutting, which removes some individual trees from a forest, is one of the major and widespread forest management practices that can significantly alter both forest structure and carbon (C) storage. Using 746 observations from 82 publications, we synthesized the impacts of partial cutting on three variables associated with forest structure (i.e. mean annual growth of diameter at breast height (DBH), basal area (BA), and volume) and four variables related to various C stock components (i.e. aboveground biomass C (AGBC), understory C, forest floor C, and mineral soil C). Results shows that the growth of DBH elevated by 112% after partial cutting, compared to the uncut control, while stand BA and volume reduced immediately by 34% and 29%, respectively. On average, partial cutting reduced AGBC by 43%, increased understory C storage by 392%, but did not show significant effects on C storages on forest floor and in mineral soil. All the effects on DBH growth, stand BA, volume, and AGBC intensified linearly with cutting intensity (CI) and decreased linearly with the number of recovery years (RY). In addition to the strong impacts of CI and RY, other factors such as climate zone and forest type also affected forest responses to partial cutting. The data assembled in this synthesis were not sufficient to determine how long it would take for a complete recovery after cutting because long-term experiments were rare. Future efforts should be tailored to increase the duration of the experiments and balance geographic locations of field studies.                         </p>", "keywords": ["Biomass (ecology)", "0106 biological sciences", "Sustainable forest management", "Volume (thermodynamics)", "Diameter at breast height", "Forest Carbon Sequestration", "Estimation of Forest Biomass and Carbon Stocks", "Quantum mechanics", "01 natural sciences", "Environmental science", "Basal area", "Agricultural and Biological Sciences", "Life", "Forest structure", "QH501-531", "Development and Impacts of Bioenergy Crops", "FOS: Mathematics", "Climate change", "Carbon stock", "Agroforestry", "Biology", "QH540-549.5", "Nature and Landscape Conservation", "QE1-996.5", "Global and Planetary Change", "Understory", "Forest management", "Ecology", "Geography", "Physics", "Confidence interval", "Statistics", "Canopy", "Life Sciences", "Geology", "Forestry", "15. Life on land", "Clearcutting", "Climate Change Impacts on Forest Carbon Sequestration", "Forest Site Productivity", "FOS: Biological sciences", "Environmental Science", "Physical Sciences", "Tree Height-Diameter Models", "Agronomy and Crop Science", "Biomass Estimation", "Animal science", "Mathematics"]}, "links": [{"href": "https://doi.org/10.5194/bg-10-3691-2013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-10-3691-2013", "name": "item", "description": "10.5194/bg-10-3691-2013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-10-3691-2013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-01-14T00:00:00Z"}}, {"id": "10.5194/bg-10-421-2013", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2012-08-29", "title": "Belowground In Situ Redox Dynamics And Methanogenesis Recovery In A Degraded Fen During Dry-Wet Cycles And Flooding", "description": "<p>Abstract. Climate change induced drying and flooding may alter the redox conditions of organic matter decomposition in peat soils. The seasonal and intermittent changes in pore water solutes (NO3\uffe2\uff88\uff92, Fe2+, SO42\uffe2\uff88\uff92, H2S, acetate) and dissolved soil gases (CO2, O2, CH4, H2) under natural water table fluctuations were compared to the response under a reinforced drying and flooding in fen peats. Oxygen penetration during dryings led to CO2 and CH4 degassing and to a regeneration of dissolved electron acceptors (NO3\uffe2\uff88\uff92, Fe3+ and SO42\uffe2\uff88\uff92). Drying intensity controlled the extent of the electron acceptor regeneration. Iron was rapidly reduced and sulfate pools ~ 1 mmol L\uffe2\uff88\uff921 depleted upon rewetting and CH4 did not substantially accumulate until sulfate levels declined to ~ 100 \uffce\uffbcmoll\uffe2\uff88\uff921. The post-rewetting recovery of soil methane concentrations to levels ~ 80 \uffce\uffbcmoll\uffe2\uff88\uff921 needed 40\uffe2\uff80\uff9350 days after natural drought. This recovery was prolonged after experimentally reinforced drought. A greater regeneration of electron acceptors during drying was not related to prolonged methanogenesis suppression after rewetting. Peat compaction, solid phase content of reactive iron and total reduced inorganic sulfur and organic matter content controlled oxygen penetration, the regeneration of electron acceptors and the recovery of CH4 production, respectively. Methane production was maintained despite moderate water table decline of 20 cm in denser peats. Flooding led to accumulation of acetate and H2, promoted CH4 production and strengthened the co-occurrence of iron and sulfate reduction and methanogenesis. Mass balances during drying and flooding indicated that an important fraction of the electron flow must have been used for the generation and consumption of electron acceptors in the solid phase or other mechanisms. In contrast to flooding, dry-wet cycles negatively affect methane production on a seasonal scale but this impact might strongly depend on drying intensity and on the peat matrix, whose structure and physical properties influence moisture content.                         </p>", "keywords": ["QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "QH540-549.5", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-10-421-2013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-10-421-2013", "name": "item", "description": "10.5194/bg-10-421-2013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-10-421-2013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-08-29T00:00:00Z"}}, {"id": "10.5194/bg-10-7361-2013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2013-11-18", "title": "Effects Of Belowground Litter Addition, Increased Precipitation And Clipping On Soil Carbon And Nitrogen Mineralization In A Temperate Steppe", "description": "<p>Abstract. Soil carbon (C) and nitrogen (N) cycling are sensitive to changes in environmental factors and play critical roles in the responses of terrestrial ecosystems to natural and anthropogenic perturbations. This study was conducted to quantify the effects of belowground particulate litter (BPL) addition, increased precipitation and their interactions on soil C and N mineralization in two adjacent sites where belowground photosynthate allocation was manipulated through vegetation clipping in a temperate steppe of northeastern China from 2010 to 2011. The results show that BPL addition significantly increase soil C mineralization rate (CMR) and net N mineralization rate (NMR). Although increased precipitation-induced enhancement of soil CMR essentially ceased after the first year, stimulation of soil NMR and net nitrification rate continued into the second year. Clipping only marginally decreased soil CMR and NMR during the two years. There were significant synergistic interactions between BPL addition (and increased precipitation) and clipping on soil CMR and NMR, likely to reflect shifts in soil microbial community structure and a decrease in arbuscular mycorrhizal fungi biomass due to the reduction of belowground photosynthate allocation. These results highlight the importance of plants in mediating the responses of soil C and N mineralization to potentially increased BPL and precipitation by controlling belowground photosynthate allocation in the temperate steppe.                     </p>", "keywords": ["Soil Degradation", "Nitrogen", "Soil Science", "Organic chemistry", "Carbon Dynamics in Peatland Ecosystems", "Nitrogen cycle", "Environmental science", "Agricultural and Biological Sciences", "Life", "QH501-531", "Soil water", "Biology", "QH540-549.5", "Ecosystem", "Soil science", "2. Zero hunger", "QE1-996.5", "Steppe", "Ecology", "Geography", "Mineralization (soil science)", "Life Sciences", "Geology", "Cycling", "Forestry", "04 agricultural and veterinary sciences", "15. Life on land", "Soil carbon", "Nitrification", "Soil Erosion and Agricultural Sustainability", "Agronomy", "Temperate climate", "Chemistry", "13. Climate action", "FOS: Biological sciences", "Environmental Science", "Physical Sciences", "Environmental chemistry", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems"], "contacts": [{"organization": "Liang Ma, Chuanyu Guo, Xiaoping Xin, S. Yuan, R. Wang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5194/bg-10-7361-2013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-10-7361-2013", "name": "item", "description": "10.5194/bg-10-7361-2013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-10-7361-2013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-18T00:00:00Z"}}, {"id": "10.5194/bg-10-7423-2013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:56Z", "type": "Journal Article", "created": "2013-03-14", "title": "Variability of above-ground litter inputs alters soil physicochemical and biological processes: a meta-analysis of litterfall-manipulation experiments", "description": "<p>Abstract. Global change has been shown to greatly alter the amount of aboveground litter inputs to soil, which could cause substantial cascading effects on belowground biogeochemical cyling. Although having been studied extensively, there is uncertainty about how changes in aboveground litter inputs affect soil carbon and nutrient turnover and transformation. Here, we conducted a comprehensive compilation of 68 studies on litter addition or removal experiments, and used meta-analysis to assess the responses of soil physicochemical properties and carbon and nutrient cycling under changed aboveground litter inputs. Our results suggested that litter addition or removal could significantly alter soil temperature and moisture, but not soil pH. Litter inputs were more crucial in buffering soil temperature and moisture fluctuations in grassland than in forest. Soil respiration, soil microbial biomass carbon and total carbon in the mineral soil increased with increasing litter inputs, suggesting that soil acted as a~net carbon sink although carbon loss and transformation increased with increasing litter inputs. Total nitrogen and the C : N ratio in the mineral soil increased with increased litter inputs. However, there was no correlation between litter inputs and extractable inorganic nitrogen in the mineral soil. Compared to other ecosystems, tropical and subtropical forests are more sensitive to variation in litter inputs. Increased or decreased litter inputs altered the turnover and accumulation of soil carbon and nutrient in tropical and subtropical forests more substantially over a shorter time period compared to other ecosystems. Overall, our study suggested that, although the magnitude of responses differed greatly among ecosystems, increased litter inputs generally accelerated the decomposition and accumulation of carbon and nutrients in soil, and decreased litter inputs reduced them.                         </p>", "keywords": ["570", "QE1-996.5", "Ecology", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "630", "QH540-549.5"]}, "links": [{"href": "https://eprints.lancs.ac.uk/id/eprint/69200/1/bg_10_7423_2013.pdf"}, {"href": "https://doi.org/10.5194/bg-10-7423-2013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-10-7423-2013", "name": "item", "description": "10.5194/bg-10-7423-2013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-10-7423-2013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-03-14T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=QH501-531&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=QH501-531&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=QH501-531&", "hreflang": "en-US"}, {"rel": "next", "type": "application/geo+json", "title": "items (next)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=QH501-531&offset=50", "hreflang": "en-US"}], "numberMatched": 120, "numberReturned": 50, "distributedFeatures": [], "timeStamp": "2026-09-21T19:01:38.886255Z"}