{"type": "FeatureCollection", "features": [{"id": "10.1007/s00374-002-0532-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:25Z", "type": "Journal Article", "created": "2003-02-13", "title": "Effects Of Nitrogen Fertilization On Soil Nitrogen Pools And Microbial Properties In A Hoop Pine ( Araucaria Cunninghamii ) Plantation In Southeast Queensland, Australia", "description": "A field study was conducted to investigate the effects of N fertilization on soil N pools and associated microbial properties in a 13-year-old hoop pine (Araucaria cunninghamii) plantation of southeast Queensland, Australia. The treatments included: (1) control (without N application); (2) 300\u00a0kg N ha\u20131 applied as NH4NO3; and (3) 600\u00a0kg N ha\u20131 as NH4NO3. The experiment employed a randomized complete block design with four replicates. Soil samples were taken approximately 5\u00a0years after the N application. The results showed that application of 600\u00a0kg N ha\u20131 significantly increased concentrations of NH4 +-N in 0\u201310\u00a0cm soil compared with the control and application of 300\u00a0kg N ha\u20131. Concentrations of NO3 \u2013-N in soil (both 0\u201310\u00a0cm and 10\u201320\u00a0cm) with an application rate of 600\u00a0kg N ha\u20131 were significantly higher compared with the control. Application of 600\u00a0kg N ha\u20131 significantly increased gross N mineralization and immobilization rates (0\u201310\u00a0cm soil) determined by 15N isotope dilution techniques under anaerobic incubation, compared with the control. However, N application did not significantly affect the concentrations of soil total C and total N. N application appeared to decrease microbial biomass C and N and respiration, and to increase the metabolic quotient (qCO2) in 0\u201310\u00a0cm soil, but these effects were not statistically significant. The lack of statistical significance in these microbial properties between the treatments might have been associated with large spatial variability between the replicate plots at this experimental site. Spatial variability in soil microbial biomass C and N was found to relate to soil moisture, total C and total N.", "keywords": ["Environmental sciences", "2. Zero hunger", "Biological sciences", "Agricultural", "veterinary and food sciences", "0401 agriculture", " forestry", " and fisheries", "Soil chemistry", "04 agricultural and veterinary sciences", "Forest soils", "15. Life on land", "01 natural sciences", "630", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1007/s00374-002-0532-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biology%20and%20Fertility%20of%20Soils", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00374-002-0532-y", "name": "item", "description": "10.1007/s00374-002-0532-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00374-002-0532-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-10-01T00:00:00Z"}}, {"id": "10.1007/s003740050411", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:30Z", "type": "Journal Article", "created": "2002-08-25", "title": "Soil Microbial And Extractable C And N After Wildfire", "description": "Open AccessPeer reviewed", "keywords": ["13. Climate action", "Temperate humid zone", "Microbial biomass", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Uncontrolled burning", "Forest soils", "15. Life on land", "Potassium-sulphate-soluble C and N", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1007/s003740050411"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biology%20and%20Fertility%20of%20Soils", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s003740050411", "name": "item", "description": "10.1007/s003740050411", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s003740050411"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1998-06-19T00:00:00Z"}}, {"id": "10.1007/s00442-004-1788-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:31Z", "type": "Journal Article", "created": "2005-02-01", "title": "Effects Of Fire On Properties Of Forest Soils: A Review", "description": "Many physical, chemical, mineralogical, and biological soil properties can be affected by forest fires. The effects are chiefly a result of burn severity, which consists of peak temperatures and duration of the fire. Climate, vegetation, and topography of the burnt area control the resilience of the soil system; some fire-induced changes can even be permanent. Low to moderate severity fires, such as most of those prescribed in forest management, promote renovation of the dominant vegetation through elimination of undesired species and transient increase of pH and available nutrients. No irreversible ecosystem change occurs, but the enhancement of hydrophobicity can render the soil less able to soak up water and more prone to erosion. Severe fires, such as wildfires, generally have several negative effects on soil. They cause significant removal of organic matter, deterioration of both structure and porosity, considerable loss of nutrients through volatilisation, ash entrapment in smoke columns, leaching and erosion, and marked alteration of both quantity and specific composition of microbial and soil-dwelling invertebrate communities. However, despite common perceptions, if plants succeed in promptly recolonising the burnt area, the pre-fire level of most properties can be recovered and even enhanced. This work is a review of the up-to-date literature dealing with changes imposed by fires on properties of forest soils. Ecological implications of these changes are described.", "keywords": ["Nitrogen", "Phosphorus", "Fire", " Forest ecosystems", " Forest soils", " Soil ecology", " Soil properties.", "04 agricultural and veterinary sciences", "15. Life on land", "Invertebrates", "01 natural sciences", "Carbon", "Fires", "Trees", "Soil", "13. Climate action", "Animals", "0401 agriculture", " forestry", " and fisheries", "Hydrophobic and Hydrophilic Interactions", "Soil Microbiology", "0105 earth and related environmental sciences"], "contacts": [{"organization": "CERTINI, GIACOMO", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s00442-004-1788-8"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-004-1788-8", "name": "item", "description": "10.1007/s00442-004-1788-8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-004-1788-8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-02-02T00:00:00Z"}}, {"id": "10.1007/s10533-020-00728-w", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:45Z", "type": "Journal Article", "created": "2020-11-19", "title": "How will a drier climate change carbon sequestration in soils of the deciduous forests of Central Europe?", "description": "Abstract

Global warming is accompanied by increasing water stress across much of our planet. We studied soil biological processes and changes in soil organic carbon (SOC) storage in 30 Hungarian oak forest sites in the Carpathian Basin along a climatic gradient (mean annual temperature (MAT) 9.6\uffe2\uff80\uff9312.1\uffc2\uffa0\uffc2\uffb0C, mean annual precipitation (MAP) 545\uffe2\uff80\uff93725\uffc2\uffa0mm) but on similar gently sloped hillsides where the parent materials are loess and weathered dust inputs dating from the end of the ice age. The purpose of this research was to understand how a drying climate, predicted for this region, might regulate long-term SOC sequestration. To examine the effects of decreasing water availability, we compared soil parameters and processes in three categories of forest that represented the moisture extremes along our gradient and that were defined using a broken-stick regression model. Soil biological activity was significantly lower in the driest (\uffe2\uff80\uff9cdry\uffe2\uff80\uff9d) forests, which had more than double the SOC concentration in the upper 30\uffc2\uffa0cm layer (3.28\uffc2\uffa0g C/100\uffc2\uffa0g soil\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff890.11 SE) compared to soils of the wettest (\uffe2\uff80\uff9chumid\uffe2\uff80\uff9d) forests (1.32\uffc2\uffa0g C/100\uffc2\uffa0g soil\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff890.09 SE), despite the fact that annual surface litter production in humid forests was\uffe2\uff80\uff89~\uffe2\uff80\uff8937% higher than in dry forests. A two-pool SOM model constrained to fit radiocarbon data indicates that turnover times for fast and slow pools are about half as long in the humid soil compared to the dry soil, and humid soils transfer C twice as efficiently from fast to slow pools. Enzyme activity and fungal biomass data also imply shorter turnover times associated with faster degradation processes in the soils of humid forests. Thermogravimetry studies suggest that more chemically recalcitrant compounds are accumulating in the soils of dry forests. Taken together, our results suggest that the predicted climate drying in this region might increase SOC storage in Central European mesic deciduous forests even as litter production decreases.

", "keywords": ["2. Zero hunger", "SOM", " C sequestration", " Soil enzyme activity", " Radiocarbon", " Climosequence", " Decomposition", " Climate change", " Forest soil", " Soil biology", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"], "contacts": [{"organization": "Istvan Fekete, Imre Berki, Kate Lajtha, Susan Trumbore, Ornella Francioso, Paola Gioacchini, Daniela Montecchio, Gabor Varb\u0131ro \u0301, Aron Beni, Marianna Makadi, Ibolya Demeter, Balazs Madarasz, Katalin Juhos, Zsolt Kotroczo,", "roles": ["creator"]}]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/795544/1/Fekete2021_Article_HowWillADrierClimateChangeCarb.pdf"}, {"href": "http://link.springer.com/content/pdf/10.1007/s10533-020-00728-w.pdf"}, {"href": "https://doi.org/10.1007/s10533-020-00728-w"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-020-00728-w", "name": "item", "description": "10.1007/s10533-020-00728-w", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-020-00728-w"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-19T00:00:00Z"}}, {"id": "10.1007/s10661-006-9410-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:46Z", "type": "Journal Article", "created": "2006-12-15", "title": "Are Nitrogen-Fertilized Forest Soils Sinks Or Sources Of Carbon?", "description": "We developed a simple conceptual model that tracks nitrogen and carbon jointly through an N fertilized forest ecosystem. The stimulation of growth increases the litterfall and imports substrate for soil microorganisms. Microbial biomass forms according to the supply of C and N. The formation of microbial biomass is accompanied by respiratory C losses. The quantity of CO2 efflux depends on the C use efficiency of microbes. When excess N is available, the microbial activity is accelerated and the demand for substrate is high. Litterfall supplies an insufficient amount of C to the soil. In such a case, labile soil C is mineralized and the net effect of N fertilization is a loss of soil C. A strong N fertilization effect on the aboveground biomass can offset the soil C loss. In the case of a low N dosage or high N losses due to leaching or emission of nitrogen oxides, the soil C loss is small. The conceptual model was applied to a case study. The field data, collected over a time span of several decades, could not support sound conclusions on the temporal trend of soil C because the spatial and temporal variability of the chemical data was high. The conceptual model allowed to give an evaluation of the fertilization effect on soil C based on reproducible principles.", "keywords": ["nitrogen-fertilized", "sinks", "550", "Nitrogen", "carbon", "souces", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Carbon", "6. Clean water", "forest soils", "Soil", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Fertilizers", "Forest Sciences", "Environmental Sciences", "Soil Microbiology", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Van Miegroet, H., Jandl, R.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s10661-006-9410-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Monitoring%20and%20Assessment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10661-006-9410-7", "name": "item", "description": "10.1007/s10661-006-9410-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10661-006-9410-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-12-16T00:00:00Z"}}, {"id": "10.1007/s11104-012-1547-2", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:59Z", "type": "Journal Article", "created": "2012-12-14", "title": "Snow Cover Manipulation Effects On Microbial Community Structure And Soil Chemistry In A Mountain Bog", "description": "Background and Aims Alterations in snow cover driven by climate change may impact ecosystem functioning, including biogeochemistry and soil (microbial) processes. We elucidated the effects of snow cover manipulation (SCM) on above-and belowground processes in a temperate peatland.", "keywords": ["trends", "2. Zero hunger", "570", "biomass", "tundra soils", "variability", "[SDE.MCG]Environmental Sciences/Global Changes", "dynamics", "04 agricultural and veterinary sciences", "15. Life on land", "forest soil", "freeze-thaw cycles", "Microbial communities; peatland; phosphatase activity; Phospholipid fatty acids (PLFA); Snow cover manipulation; \uf020Winter Ecology", "01 natural sciences", "nitrogen", "13. Climate action", "[SDE]Environmental Sciences", "climate-change", "rv-coefficient", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://eprints.soton.ac.uk/412453/2/Robroek_2013_Plant_and_Soil.pdf"}, {"href": "https://doi.org/10.1007/s11104-012-1547-2"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-012-1547-2", "name": "item", "description": "10.1007/s11104-012-1547-2", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-012-1547-2"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-12-16T00:00:00Z"}}, {"id": "10.1007/s11258-007-9317-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:05Z", "type": "Journal Article", "created": "2007-06-20", "title": "Soil Acidity And Nutrient Deficiency In Central Amazonian Heath Forest Soils", "description": "Experiments were carried out to test the effects of liming and nutrient additions on plant growth and soil processes such as C and N mineralisation in three contrasting forest types in central Amazonia: the stunted facies of heath forest (SHF), the tall facies of heath forest (THF) and the surrounding lowland evergreen rain forest (LERF). Calcium-carbonate additions increased soil respiration in the field plots in the SHF; in laboratory incubations, soil respiration was higher in the SHF when soils were fertilised with N, and in THF and LERF after S additions. The addition of N alone or in different combinations generally induced a net immobilisation of soil N. Net nitrification increased during the incubation in SHF and THF soils fertilised with N+P, and in LERF soils fertilised with either N, or P, or CaCO3. In a field experiment using ingrowth bags, a higher fine root production was observed in all forest types when bags were fertilised with CaCl2 or CaCO3, suggesting that Ca may be a limiting nutrient in these soils. Calcium-carbonate addition in a glasshouse bioassay experiment with rice showed an overall positive effect on the survival and growth of the seedlings. In other treatments where soil pH was not raised, the rice showed acute toxicity symptoms, poor root and shoot growth and high mortality. Similar results were yielded in a field experiment, using naturally established seedlings in the field plots in SHF, THF and LERF. It is concluded that the acute H+ ion toxicity is a major growth-limiting factor for non-adapted plants in heath forest soils in central Amazonia.", "keywords": ["0106 biological sciences", "2. Zero hunger", "Survival", "Seedling", "Forest Soil", "Growth", "Soil Chemistry", "South America", "15. Life on land", "01 natural sciences", "Root", "Amazonia", "Mortality", "Nutrient Limitation", "Acid Soil", "Heathland"], "contacts": [{"organization": "Luiz\u00e3o, Fl\u00e1vio Jesus, Luiz\u00e2o, Regina Celi Costa, Proctor, John,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s11258-007-9317-6"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11258-007-9317-6", "name": "item", "description": "10.1007/s11258-007-9317-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11258-007-9317-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-06-21T00:00:00Z"}}, {"id": "10.1007/s11368-014-1049-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:09Z", "type": "Journal Article", "created": "2015-01-06", "title": "Characterization Of The Amino Acid Composition Of Soils Under Organic And Conventional Management After Addition Of Different Fertilizers", "description": "The classical nitrogen (N) cycling model has provided good understanding of inorganic N dynamics in agricultural soils, but largely ignores organic N available to plants. The ability of numerous crop plant species to take up and use amino acids underlines the importance of this N pool in agricultural systems; therefore, the soil free amino acids (FAA) pool was quantified in soils under organic (organic soil) and conventional (conventional soil) management after addition of different types of fertilizer. After application of the same amount of N as urea, alfalfa, rice straw, or compost\u00a0in the organic soils and urea or alfalfa in the conventional soils, water-extractable amino acid composition and concentrations, and inorganic and microbial N were measured during a 56 day soil incubation. Alanine, glutamic acid, glycine, isoleucine, leucine, phenylalanine, serine, tryptophan, and valine were the most abundant soil FAA. Organic and conventional soils did not significantly differ in their soil FAA composition and concentrations. Urea significantly modified FAA composition, but only in organic soils, suggesting that urea disrupts microbial structure and/or metabolic pathways in organic soils. Alfalfa and compost did not alter FAA composition and concentrations, indicating that any pulses of amino acids from these materials are short lived. On the contrary, straw significantly increased FAA concentrations after 15\u00a0days, coinciding with an increase in microbial biomass N. FAA concentrations remain low and have a largely constant composition in both organic and conventional soils; however, the addition of some fertilizers can significantly alter FAA composition and concentrations, which may affect the importance of amino acid N in the total N budget of plants. These findings warrant further research into the mechanisms controlling soil FAA composition and concentration in agricultural soils.", "keywords": ["2. Zero hunger", "Mineralization", "Matter", "Forest Soils", "Field", "Availability", "04 agricultural and veterinary sciences", "Plants", "910", "15. Life on land", "Carbon", "630", "6. Clean water", "13. Climate action", "Wheat", "Sorption", "0401 agriculture", " forestry", " and fisheries", "Nitrogen Forms"]}, "links": [{"href": "https://doi.org/10.1007/s11368-014-1049-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Soils%20and%20Sediments", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11368-014-1049-3", "name": "item", "description": "10.1007/s11368-014-1049-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11368-014-1049-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-01-07T00:00:00Z"}}, {"id": "10.1016/j.foreco.2022.120637", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:17Z", "type": "Journal Article", "created": "2022-11-25", "title": "How does management affect soil C sequestration and greenhouse gas fluxes in boreal and temperate forests? \u2013 A review", "description": "The global forest carbon (C) stock is estimated at 662 Gt of which 45% is in soil organic matter. Thus, comprehensive understanding of the effects of forest management practices on forest soil C stock and greenhouse gas (GHG) fluxes is needed for the development of effective forest-based climate change mitigation strategies. To improve this understanding, we synthesized peer-reviewed literature on forest management practices that canmitigate climate change by increasing soil C stocks and reducing GHG emissions. We further identified soil processes that affect soil GHG balance and discussed how models represent forest management effects on soil in GHG inventories and scenario analyses to address forest climate change mitigation potential.Forest management effects depend strongly on the specific practice and land type. Intensive timber harvesting with removal of harvest residues/stumps results in a reduction in soil C stock, while high stocking density and enhanced productivity by fertilization or dominance of coniferous species increase soil C stock. Nitrogenfertilization increases the soil C stock and N2O emissions while decreasing the CH4 sink. Peatland hydrology management is a major driver of the GHG emissions of the peatland forests, with lower water level corresponding to higher CO2 emissions. Furthermore, the global warming potential of all GHG emissions (CO2, CH4 and N2O) together can be ten-fold higher after clear-cutting than in peatlands with standing trees. The climate change mitigation potential of forest soils, as estimated by modelling approaches, accounts for stand biomass driven effects and climate factors that affect the decomposition rate. A future challenge is to account for the effects of soil preparation and other management that affects soil processes by changing soil temperature, soil moisture, soil nutrient balance, microbial community structure and processes, hydrology and soil oxygen concentration in the models. We recommend that soil monitoring and modelling focus on linkingprocesses of soil C stabilization with the functioning of soil microbiota.", "keywords": ["[SDE] Environmental Sciences", "330", "550", "Peatland hydrology management", "CLIMATE-CHANGE ADAPTATION", "WOOD ASH APPLICATION", "530", "Greenhouse gas", "SITE PREPARATION", "630", "12. Responsible consumption", "BELOW-GROUND CARBON", "11. Sustainability", "SDG 13 - Climate Action", "NITROGEN-FERTILIZATION", "SDG 15 - Life on Land", "2. Zero hunger", "PONDEROSA PINE", "GE", "PLANT LITTER DECOMPOSITION", "NORWAY SPRUCE", "04 agricultural and veterinary sciences", "15. Life on land", "004", "Forest fertilization", "Harvesting practices", "ORGANIC-MATTER", "Forest fire management", "13. Climate action", "[SDE]Environmental Sciences", "Forest soil carbon management", "0401 agriculture", " forestry", " and fisheries", "MICROBIAL COMMUNITY STRUCTURE", "GE Environmental Sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2022.120637"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2022.120637", "name": "item", "description": "10.1016/j.foreco.2022.120637", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2022.120637"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-02-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2013.01.040", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:05Z", "type": "Journal Article", "created": "2013-02-20", "title": "Greenhouse Gas Emissions From A Wheat-Maize Double Cropping System With Different Nitrogen Fertilization Regimes", "description": "Here, we report on a two-years field experiment aimed at the quantification of the emissions of nitrous oxide (N2O) and methane (CH4) from the dominant wheat-maize double cropping system in North China Plain. The experiment had 6 different fertilization strategies, including a control treatment, recommended fertilization, with and without straw and manure applications, and nitrification inhibitor and slow release urea. Application of N fertilizer slightly decreased CH4 uptake by soil. Direct N2O emissions derived from recommended urea application was 0.39% of the annual urea-N input. Both straw and manure had relatively low N2O emissions factors. Slow release urea had a relatively high emission factor. Addition of nitrification inhibitor reduced N2O emission by 55%. We conclude that use of nitrification inhibitors is a promising strategy for N2O mitigation for the intensive wheat-maize double cropping systems.", "keywords": ["Greenhouse Effect", "China", "oxide emissions", "Nitrogen Dioxide", "organic-carbon", "n2o emissions", "Zea mays", "01 natural sciences", "field experiments", "12. Responsible consumption", "Soil", "calcareous soil", "Air Pollution", "Fertilizers", "Triticum", "0105 earth and related environmental sciences", "2. Zero hunger", "Air Pollutants", "north china plain", "Agriculture", "temperate forest soils", "04 agricultural and veterinary sciences", "15. Life on land", "13. Climate action", "nitrification inhibitor", "0401 agriculture", " forestry", " and fisheries", "agricultural soils", "3", "4-dimethylpyrazole phosphate dmpp", "Methane", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2013.01.040"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2013.01.040", "name": "item", "description": "10.1016/j.envpol.2013.01.040", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2013.01.040"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-05-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2008.05.029", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:13Z", "type": "Journal Article", "created": "2008-06-26", "title": "Long-Term Impacts Of Harvest Residue Management On Nutrition, Growth And Productivity Of An Exotic Pine Plantation Of Sub-Tropical Australia", "description": "Residue retention is an important issue in evaluating the sustainability of production forestry. However, its long-term impacts have not been studied extensively, especially in sub-tropical environments. This study investigated the long-term impact of harvest residue retention on tree nutrition, growth and productivity of a F1 hybrid (Pinus elliottii var. elliottii \u00d7 Pinus caribaea var. hondurensis) exotic pine plantation in sub-tropical Australia, under three harvest residue management regimes: (1) residue removal, RR0; (2) single residue retention, RR1; and (3) double residue retention, RR2. The experiment, established in 1996, is a randomised complete block design with 4 replicates. Tree growth measurements in this study were carried out at ages 2, 4, 6, 8 and 10 years, while foliar nutrient analyses were carried out at ages 2, 4, 6 and 10 years. Litter production and litter nitrogen (N) and phosphorus (P) measurements were carried out quarterly over a 15-month period between ages 9 and 10 years. Results showed that total tree growth was still greater in residue-retained treatments compared to the RR0 treatment. However, mean annual increments of diameter at breast height (MAID) and basal area (MAIB) declined significantly after age 4 years to about 68-78% at age 10 years. Declining foliar N and P concentrations accounted for 62% (p < 0.05) of the variation of growth rates after age 4 years, and foliar N and P concentrations were either marginal or below critical concentrations. In addition, litter production, and litter N and P contents were not significantly different among the treatments. This study suggests that the impact of residue retention on tree nutrition and growth rates might be limited over a longer period, and that the integration of alternative forest management practices is necessary to sustain the benefits of harvest residues until the end of the rotation.", "keywords": ["Sylviculture", "2. Zero hunger", "0106 biological sciences", "Agricultural", "Ecology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Ecological applications", "Environmental sciences", "Biological sciences", "veterinary and food sciences", "616", "0401 agriculture", " forestry", " and fisheries", "Forest soils"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2008.05.029"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2008.05.029", "name": "item", "description": "10.1016/j.foreco.2008.05.029", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2008.05.029"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-08-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2015.07.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:17Z", "type": "Journal Article", "created": "2015-08-24", "title": "Response Of Soil Nutrient Content, Organic Matter Characteristics And Growth Of Pine And Spruce Seedlings To Logging Residues", "description": "Abstract The aim of this study was to determine the effects of different amounts of logging residues on soil properties and growth of Scots pine and Norway spruce seedlings 10\u00a0years after clear-felling. The field experiments consisted of two Scots pine and four Norway spruce experiments. The treatments, on three replicate 8\u00a0m\u00a0\u2217\u00a08\u00a0m plots in all field experiments, were whole-tree harvesting, i.e. harvesting all the above-ground biomass with no logging residue left on the site (R0), stem-only harvesting, leaving logging residues on the site (R1), and stem-only harvesting with double the amount of logging residues left on the site (R2). In the R1 treatment the amount of logging residue in the spruce stands was 39\u201354\u00a0Mg\u00a0ha\u22121 dry mass and in the pine stands, 11\u201318\u00a0Mg\u00a0ha\u22121 dry mass. Over all sites, logging residues had no consistent effects on seedling growth, amounts of soil carbon and nutrients or organic matter characteristics. In some spruce experiments, however, logging residues increased the average diameter, height and height growth (last three years), as well as the number of seedlings, stem volume and biomass. In pine experiments, logging residues had no effect on tree or stand characteristics. In one pine experiment the amounts of exchangeable base cations increased, and there were also changes in the quality of organic matter: the C/N ratio decreased, and NH4\u2013N, microbial biomass N and C mineralization increased due to residues. In the spruce experiments and the other pine experiment, the effect of logging residues on the soil properties measured was slight. Logging residues did not affect NO3\u2013N concentrations or rates of net nitrification, which in most soils were both negligible. Seedling height and height growth correlated strongly and positively with net N mineralization and its ratio to microbial biomass N. All in all, logging residues improved tree and stand characteristics generally in spruce stands, but the effects on soil properties and processes, if any, occurred mostly in one pine stand. This poor correspondence may point to other changes brought on by the logging residues, such as changes in physical environment or decreased competition with ground vegetation, being more important for seedling growth than nutrient status was.", "keywords": ["0106 biological sciences", "nitrogen cycling", "nutrients", "13. Climate action", "logging wastes", "tree growth", "Muut aihealueet", "15. Life on land", "forest soil", "ta4112", "01 natural sciences", "630"], "contacts": [{"organization": "Saarsalmi, Anna, Tamminen, Pekka, Smolander, Aino,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2015.07.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2015.07.019", "name": "item", "description": "10.1016/j.foreco.2015.07.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2015.07.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-12-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2025.122668", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:17Z", "type": "Journal Article", "created": "2024-11-15", "title": "Decadal Decline in Forest Floor Soil Organic Carbon after Clear-Cutting in Nordic and Canadian Forests", "description": "

Nordic and Canadian forests store substantial amounts of carbon (C) and are largely managed in a silvicultural system with clear-cut harvest. Previous meta-analyses of harvesting effects on soil C have shown short- to long-term declines after harvest, but effects of clear-cutting on boreal and northern temperate forest soil C stocks remain unresolved. We harmonized National Forest Soil Inventory (NFSI) data from Sweden, Denmark, Finland, Norway and Canada to examine soil C stocks up to 53 years following clear-cut harvest using a space-for-time approach. We analyzed forest floor and mineral soil C stocks in coniferous and deciduous/mixed forests. Coniferous forest floor C stocks decreased for \u223c30 years after clear-cutting: when at its lowest stock level, Picea and Pinus forest floor C stocks had decreased by 23 % and 14 % relative to initial stock levels, respectively. Picea forest floor C stocks then remained close to its lowest levels until 53 years after clear-cutting, while for Pinus-dominated forests they increased again and recovered to the pre-harvest level 48 years after clear-cutting. No C stock changes were detected in the 0\u201310 cm or 10\u201320 cm mineral soil layers, while a small increase in 55\u201365 cm mineral soil was detected in Podzol soils. Data was too limited to detect statistical signals of clear-cutting for deciduous/mixed forests. Our results shows that clear-cut harvest has substantial and long-lasting effects on northern temperate and boreal forest soil C storage, and that combining data from several NFSIs can help elucidate forest management effects on soil C storage.

", "keywords": ["Forest harvest", "Temperate", "National forest soil inventory", "Soil organic carbon", "Clear-cutting", "National forest inventory", "Boreal"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2025.122668"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2025.122668", "name": "item", "description": "10.1016/j.foreco.2025.122668", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2025.122668"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2024.116862", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:24Z", "type": "Journal Article", "created": "2024-03-27", "title": "Is the organic carbon-to-clay ratio a reliable indicator of soil health?", "description": "Climate action plans under the Paris Climate Agreement and other national commitments aimed at improving soil-based ecosystem services require the operational monitoring of soil carbon (C). The European Union is aiming to enhance soil health, and as part of the proposed Soil Monitoring Law, the European Commission recommends the monitoring of the soil C loss indicator among other soil health indicators. In this study, we evaluate the feasibility of the proposed soil C loss indicator by assessing its performance using the EU-wide 2009 LUCAS soil survey data. The proposed indicator is the soil organic carbon (SOC) to clay ratio, with a threshold value of 1:13. The results are also compared with the C stock changes reported by countries to the climate convention (UNFCCC). Our results reveal that the variation in SOC and clay content at European scale exceeds that of the data used to develop the proposed indicator. We also found that the variation in the SOC content was influenced not only by clay content but also by climate and land-use reflecting C input levels. Therefore, the defined threshold is inadequate for detecting degraded soils if the SOC and clay content are beyond the conditions used to establish the criteria. Furthermore, major discrepancies were observed between the soil carbon stock changes reported by the national greenhouse gas (GHG) inventories and the proportions of degraded soils identified by using the soil C loss indicator. We conclude that employing a single indicator such as SOC:Clay ratio with one threshold value for all soils across various land covers, management practices, and climatic conditions, as defined by the European Commission for the Soil Monitoring Law, is inappropriate for monitoring soil C loss.", "keywords": ["2. Zero hunger", "agricultural soil", "550", "Forest soil", " agricultural soil", "Science", "Q", "Soil organic carbon (SOC)", "Soil monitoring", "04 agricultural and veterinary sciences", "SOC:Clay ratio", "15. Life on land", "forest soil", "01 natural sciences", "630", "6. Clean water", "12. Responsible consumption", "soil organic carbon", "13. Climate action", "soil monitoring", "LUCAS soil survey", "11. Sustainability", "soc:clay ratio", "0401 agriculture", " forestry", " and fisheries", "European mineral soils", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2024.116862"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2024.116862", "name": "item", "description": "10.1016/j.geoderma.2024.116862", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2024.116862"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-01T00:00:00Z"}}, {"id": "10.1016/j.still.2004.03.006", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:58Z", "type": "Journal Article", "created": "2004-08-10", "title": "No Tillage And Crop Rotation Effects On Soil Aggregation And Organic Carbon In A Rhodic Ferralsol From Southern Brazil", "description": "Abstract In Brazil, no tillage (NT) is a soil conservation practice now widely adopted by farmers, including smallholders. The effect of NT and conventional tillage (disc ploughing followed by two light disc harrowings, CT) was investigated on the aggregation properties of a clayey Rhodic Ferralsol from southern Brazil under different crop rotations. The same soil type under secondary forest was used as reference. Macro- and microaggregate classes were separated by wet sieving using a series of eight sieves (8, 4, 2, 1, 0.5, 0.25, 0.125, 0.053\u00a0mm) at four sampling layers (0\u20135, 5\u201310, 10\u201320, 20\u201330\u00a0cm). The soil in general had high structural stability. At 0\u20135\u00a0cm, meanweight diameter (MWD, 11.1\u00a0mm) and total organic C in macroaggregates (TOC, 39\u00a0g\u00a0kg \u22121 soil) were highest for the forest soil. Soil under NT had a more similar distribution of aggregate size classes and TOC to the forest soil than CT. The most pronounced difference between tillage systems was observed in the surface soil layer (0\u20135\u00a0cm). In this layer, NT had higher aggregate stability (AS NT : 96%; AS CT : 89%), had higher values of aggregate size distribution (MWD NT : 7.9\u00a0mm, MWD CT : 4.3\u00a0mm), and had on average 28% greater TOC in all aggregate size classes than CT. Soil under NT had greater TOC in macroaggregates (NT: 22\u00a0g\u00a0kg \u22121 ; CT: 13\u00a0g\u00a0kg \u22121 ). Crop rotation did not have a significant effect on soil aggregate distribution and TOC. By increasing macroaggregation NT increased organic carbon accumulation in soil.", "keywords": ["Carbon sequestration", "2. Zero hunger", "Soil organic matter", "Soil", "Subtropical climate", "Subtropics", "Forest soil", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Field Scale", "Conservation tillage", "Soil aggregate distribution"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2004.03.006"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2004.03.006", "name": "item", "description": "10.1016/j.still.2004.03.006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2004.03.006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-01-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2013.03.090", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:40Z", "type": "Journal Article", "created": "2013-04-24", "title": "Microbial Utilisation Of Biochar-Derived Carbon", "description": "Whilst largely considered an inert material, biochar has been documented to contain a small yet significant fraction of microbially available labile organic carbon (C). Biochar addition to soil has also been reported to alter soil microbial community structure, and to both stimulate and retard the decomposition of native soil organic matter (SOM). We conducted a short-term incubation experiment using two (13)C-labelled biochars produced from wheat or eucalypt shoots, which were incorporated in an aridic arenosol to examine the fate of the labile fraction of biochar-C through the microbial community. This was achieved using compound specific isotopic analysis (CSIA) of phospholipid fatty acids (PLFAs). A proportion of the biologically-available fraction of both biochars was rapidly (within three days) utilised by gram positive bacteria. There was a sharp peak in CO2 evolution shortly after biochar addition, resulting from rapid turnover of labile C components in biochars and through positive priming of native SOM. Our results demonstrate that this CO2 evolution was at least partially microbially mediated, and that biochar application to soil can cause significant and rapid changes in the soil microbial community; likely due to addition of labile C and increases in soil pH.", "keywords": ["Carbon sequestration", "[SDE] Environmental Sciences", "Carbon Sequestration", "Chromatography", " Gas", "Magnetic Resonance Spectroscopy", "550", "short term", "[SDV]Life Sciences [q-bio]", "growth", "black carbon", "Char", "01 natural sciences", "630", "Mass Spectrometry", "c 13 plfa", "Black carbon", "soil organic matter", "Soil Pollutants", "mineralization", "Organic carbon", "Phospholipids", "Soil Microbiology", "char", "0105 earth and related environmental sciences", "2. Zero hunger", "Carbon Isotopes", "decomposition", "wheat straw", "biomass", "organic carbon", "Fatty Acids", "Western Australia", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "540", "pyrolysis", "forest soil", "carbon sequestration", "Carbon", "[SDV] Life Sciences [q-bio]", "Charcoal", "[SDE]Environmental Sciences", "0401 agriculture", " forestry", " and fisheries", "community structure", "\u00b9\u00b3C-PLFA", "Pyrolysis"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2013.03.090"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2013.03.090", "name": "item", "description": "10.1016/j.scitotenv.2013.03.090", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2013.03.090"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.08.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:46Z", "type": "Journal Article", "created": "2004-09-30", "title": "Decomposition Of C-14-Labeled Roots In A Pasture Soil Exposed To 10 Years Of Elevated Co2", "description": "Abstract The net flux of soil C is determined by the balance between soil C input and microbial decomposition, both of which might be altered under prolonged elevated atmospheric CO 2 . In this study, we determined the effect of elevated CO 2 on decomposition of grass root material ( Lolium perenne L.). 14 C-labeled root material, produced under ambient (35\u00a0Pa pCO 2 ) or elevated CO 2 (70\u00a0Pa pCO 2 ) was incubated in soil for 64 days. The soils were taken from a pasture ecosystem which had been exposed to ambient (35\u00a0Pa pCO 2 ) or elevated CO 2 (60\u00a0Pa pCO 2 ) under FACE-conditions for 10 years and two fertilizer N rates: 140 and 560\u00a0kg N ha \u22121 \u00a0year \u22121 . In soil exposed to elevated CO 2 , decomposition rates of root material grown at either ambient or elevated CO 2 were always lower than in the control soil exposed to ambient CO 2 , demonstrating a change in microbial activity. In the soil that received the high rate of N fertilizer, decomposition of root material grown at elevated CO 2 decreased by approximately 17% after incubation for 64 days compared to root material grown at ambient CO 2 . The amount of 14 CO 2 respired per amount of 14 C incorporated in the microbial biomass ( q 14 CO 2 ) was significantly lower when roots were grown under high CO 2 compared to roots grown under low CO 2 . We hypothesize that this decrease is the result of a shift in the microbial community, causing an increase in metabolic efficiency. Soils exposed to elevated CO 2 tended to respire more native SOC, both with and without the addition of the root material, probably resulting from a higher C supply to the soil during the 10 years of treatment with elevated CO 2 . The results show the importance of using soils adapted to elevated CO 2 in studies of decomposition of roots grown under elevated CO 2 . Our results further suggest that negative priming effects may obscure CO 2 data in incubation experiments with unlabeled substrates. From the results obtained, we conclude that a slower turnover of root material grown in an \u2018elevated-CO 2 world\u2019 may result in a limited net increase in C storage in ryegrass swards.", "keywords": ["organic-matter dynamics", "2. Zero hunger", "microbial biomass", "atmospheric carbon-dioxide", "turnover", "fine roots", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "forest soils", "tallgrass prairie", "trifolium-repens l", "lolium-perenne", "litter quality", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.08.013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2004.08.013", "name": "item", "description": "10.1016/j.soilbio.2004.08.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.08.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-03-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2019.03.028", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:56Z", "type": "Journal Article", "created": "2019-04-01", "title": "Coupled carbon and nitrogen losses in response to seven years of chronic warming in subarctic soils", "description": "Increasing temperatures may alter the stoichiometric demands of soil microbes and impair their capacity to stabilize carbon (C) and retain nitrogen (N), with critical consequences for the soil C and N storage at high latitude soils. Geothermally active areas in Iceland provided wide, continuous and stable gradients of\u00a0soil temperatures\u00a0to test this hypothesis. In order to characterize the stoichiometric demands of microbes from these subarctic soils, we incubated soils from ambient temperatures after the factorial addition of C, N and P substrates separately and in combination. In a second experiment, soils that had been exposed to different\u00a0in situ\u00a0warming intensities (+0, +0.5, +1.8, +3.4, +8.7, +15.9\u00a0\u00b0C above ambient) for seven years were incubated after the combined addition of C, N and P to evaluate the capacity of soil microbes to store and immobilize C and N at the different warming scenarios. The seven years of chronic soil warming triggered large and proportional soil C and N losses (4.1\u00a0\u00b1\u00a00.5% \u00b0C\u22121\u00a0of the stocks in unwarmed soils) from the upper 10\u202fcm of soil, with a predominant depletion of the physically accessible organic substrates that were weakly sorbed in\u00a0soil minerals\u00a0up to 8.7\u202f\u00b0C warming. Soil microbes met the increasing respiratory demands under conditions of low C accessibility at the expenses of a reduction of the standing biomass in warmer soils. This together with the strict microbial C:N stoichiometric demands also constrained their capacity of N retention, and increased the vulnerability of soil to N losses. Our findings suggest a strong control of\u00a0microbial physiology and C:N stoichiometric needs on the retention of soil N and on the resilience of soil C stocks from high-latitudes to warming, particularly during periods of vegetation dormancy and low C inputs.", "keywords": ["0301 basic medicine", "Microbial carbon and nutrients limitation", "Microbial biomass", "TERM", "03 medical and health sciences", "FOREST SOIL", "Temperature increase", "ORGANIC-CARBON", "Substrate induced respiration", "SDG 13 - Climate Action", "TEMPERATURE SENSITIVITY", "CYCLE", "106026 Ecosystem research", "METAANALYSIS", "2. Zero hunger", "106022 Mikrobiologie", "0303 health sciences", "CLIMATE-CHANGE", "Nitrogen loss", "AVAILABILITY", "15. Life on land", "106026 \u00d6kosystemforschung", "13. Climate action", "SDG 13 \u2013 Ma\u00dfnahmen zum Klimaschutz", "FEEDBACKS", "Nitrogen immobilization", "106022 Microbiology", "PLANT BIOMASS"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2019.03.028"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2019.03.028", "name": "item", "description": "10.1016/j.soilbio.2019.03.028", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2019.03.028"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-07-01T00:00:00Z"}}, {"id": "10.1029/2002gb001886", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:24Z", "type": "Journal Article", "created": "2003-06-16", "title": "Effects Of Elevated Co2 And N Deposition On Ch4 Emissions From European Mires", "description": "

Methane fluxes were measured at five sites representing oligotrophic peatlands along a European transect. Five study plots were subjected to elevated CO2 concentration (560 ppm), and five plots to NH4NO3 (3 or 5 g N yr\uffe2\uff88\uff921). The CH4 emissions from the control plots correlated in most cases with the soil temperatures. The depth of the water table, the pH, and the DOC, N and SO4 concentrations were only weakly correlated with the CH4 emissions. The elevated CO2 treatment gave nonsignificantly higher CH4 emissions at three sites and lower at two sites. The N treatment resulted in higher methane emissions at three sites (nonsignificant). At one site, the CH4 fluxes of the N\uffe2\uff80\uff90treatment plots were significantly lower than those of the control plots. These results were not in agreement with our hypotheses, nor with the results obtained in some earlier studies. However, the results are consistent with the results of the vegetation analyses, which showed no significant treatment effects on species relationships or biomass production.

", "keywords": ["northern peatlands", "methane emissions", "atmospheric carbon-dioxide", "temperature", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "forest soils", "nitrogen deposition", "boreal mire", "13. Climate action", "raised co2", "0401 agriculture", " forestry", " and fisheries", "bog vegetation", "water-table", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1029/2002gb001886"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Biogeochemical%20Cycles", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2002gb001886", "name": "item", "description": "10.1029/2002gb001886", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2002gb001886"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-06-01T00:00:00Z"}}, {"id": "10.1038/srep15991", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:38Z", "type": "Journal Article", "created": "2015-11-04", "title": "Forest soil carbon is threatened by intensive biomass harvesting", "description": "Abstract

Forests play a key role in the carbon cycle as they store huge quantities of organic carbon, most of which is stored in soils, with a smaller part being held in vegetation. While the carbon storage capacity of forests is influenced by forestry, the long-term impacts of forest managers\uffe2\uff80\uff99 decisions on soil organic carbon (SOC) remain unclear. Using a meta-analysis approach, we showed that conventional biomass harvests preserved the SOC of forests, unlike intensive harvests where logging residues were harvested to produce fuelwood. Conventional harvests caused a decrease in carbon storage in the forest floor, but when the whole soil profile was taken into account, we found that this loss in the forest floor was compensated by an accumulation of SOC in deeper soil layers. Conversely, we found that intensive harvests led to SOC losses in all layers of forest soils. We assessed the potential impact of intensive harvests on the carbon budget, focusing on managed European forests. Estimated carbon losses from forest soils suggested that intensive biomass harvests could constitute an important source of carbon transfer from forests to the atmosphere (142\uffe2\uff80\uff93497 Tg-C), partly neutralizing the role of a carbon sink played by forest soils.

", "keywords": ["2. Zero hunger", "0106 biological sciences", "Carbon Sequestration", "[SDE.MCG]Environmental Sciences/Global Changes", "Forestry", "04 agricultural and veterinary sciences", "Forests", "15. Life on land", "forest soil", "01 natural sciences", "Article", "Carbon", "Carbon Cycle", "Trees", "[SDE.MCG] Environmental Sciences/Global Changes", "Soil", "13. Climate action", "carbone organique du sol", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Milieux et Changements globaux", "sol forestier", "Ecosystem", "Environmental Monitoring"]}, "links": [{"href": "https://hal.science/hal-01594440/file/2015_Achat_Scientific%20Reports_1.pdf"}, {"href": "https://doi.org/10.1038/srep15991"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/srep15991", "name": "item", "description": "10.1038/srep15991", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/srep15991"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-11-04T00:00:00Z"}}, {"id": "10.1093/femsec/fiz133", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:07Z", "type": "Journal Article", "created": "2019-08-22", "title": "Restriction of plant roots in boreal forest organic soils affects the microbial community but does not change the dominance from ectomycorrhizal to saprotrophic fungi", "description": "ABSTRACT

Boreal forest soils store significant amounts of carbon and are cohabited by saprotrophic and ectomycorrhizal fungi (ECM). The \uffe2\uff80\uff98Gadgil effect\uffe2\uff80\uff99 implies antagonistic interactions between saprotrophic fungi and ECM. Plant photosynthates support the competitive fitness of the ECM, and may also shape the soil bacterial communities. Many \uffe2\uff80\uff98Gadgil effect\uffe2\uff80\uff99 experiments have focused on litter layer (OL) or have litter and root-fragments present, and thus possibly favor the saprotrophs. We compared how the restriction of plant roots and exudates affect soil microbial community structures in organic soil (mixed OF and OH). For this, we established a 3-yr field experiment with 3 different mesh treatments affecting the penetration of plant roots and external fungal hyphae. Exclusion of plant photosynthates induced modest changes in both fungal and bacterial community structures, but not to potential functionality of the microbial community. The microbial community was resilient towards rather short-term disturbances. Contrary to the \uffe2\uff80\uff98Gadgil effect\uffe2\uff80\uff99, mesh treatments restricting the entrance of plant roots and external fungal hyphae did not favor saprotrophs that originally inhabited the soil. Thus, we propose that different substrate preferences (fresh litter vs. fermented or humified soil), rather than antagonism, maintain the spatial separation of saprotrophs and mycorrhizal fungi in boreal forest soils.

", "keywords": ["0301 basic medicine", "570", "Hyphae", "577", "Plant Roots", "ectomycorrhiza", "Trees", "Soil", "03 medical and health sciences", "boreal forest soil", "Mycorrhizae", "Taiga", "saprotrophs", "Soil Microbiology", "2. Zero hunger", "0303 health sciences", "Microbiota", "Fungi", "Plants", "15. Life on land", "Gadgil effect", "Carbon", "functional gene profile", "13. Climate action", "ta1181", "microbial community"]}, "links": [{"href": "http://academic.oup.com/femsec/article-pdf/95/9/fiz133/29808832/fiz133.pdf"}, {"href": "https://doi.org/10.1093/femsec/fiz133"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/FEMS%20Microbiology%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/femsec/fiz133", "name": "item", "description": "10.1093/femsec/fiz133", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/femsec/fiz133"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-08-23T00:00:00Z"}}, {"id": "10.1111/ejss.13290", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:23Z", "type": "Journal Article", "created": "2022-07-25", "title": "Post-fire recovery of soil microbial functions is promoted by plant growth", "description": "Abstract

Forest fires can alter the biological properties of soils. There is increasing evidence that fires cause a shift in soil microbial communities, which play a central role in forest carbon and nutrient cycling. In this study, we evaluate the effect of soil heating on soil microbial functions. We hypothesised that fire reduces the catabolic functional diversity of soil, and that post\uffe2\uff80\uff90fire plant growth enhances its recovery. To test this, we experimentally heated a forest soil at 200\uffc2\uffb0C (T200) or 450\uffc2\uffb0C (T450). Heated and unheated soils were then incubated in tubs with or without live grass (Lolium perenne L.). We determined the functional profiles by measuring the substrate\uffe2\uff80\uff90induced respiration (SIR) using the Microresp\uffe2\uff84\uffa2 technique and analysed nutrient availability at the end of the incubation. At both temperatures, soil heating altered the respiration responses to substrate additions and the catabolic functional diversity of soils. Functional diversity was initially reduced in T200 soils but recovered at the end of the incubation. In contrast, T450 soils initially maintained the catabolic functional diversity, but decreased at the end of the incubation. Heating\uffe2\uff80\uff90induced nutrient availability stimulated the growth of grass, which in turn increased the response to several substrates and increased the functional diversity to values similar to the unheated controls. Our results suggest that fire\uffe2\uff80\uff90driven alteration of soil microbial communities has consequences at a functional level, and that the recovery of plant communities enhances the recovery of soil microbial functions.

Highlights

Soil experimental heating altered microbial functions and reduced soil functional diversity.

Soil heating also increased nutrient availability, enhancing plant growth.

Growth of plants promoted the recovery of soil functional diversity.

Post\uffe2\uff80\uff90fire recovery of functional diversity may be related to the recovery of photosynthetic tissues.

", "keywords": ["2. Zero hunger", "soil heating", "soil microbial functions", "Incendis forestals", "Forest fires", "Aboveground biomass", "04 agricultural and veterinary sciences", "15. Life on land", "Soil microbial functions", "catabolic functional diversity", "substrate-induced respiration", "S\u00f2ls", "13. Climate action", "forest fires", "Substrate-induced respiration", "Soils", "0401 agriculture", " forestry", " and fisheries", "Catabolic functional diversity", "Forest soils", "aboveground biomass", "Soil heating", "S\u00f2ls forestals"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/ejss.13290"}, {"href": "https://doi.org/10.1111/ejss.13290"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Soil%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/ejss.13290", "name": "item", "description": "10.1111/ejss.13290", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/ejss.13290"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "10.1111/gcb.15420", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:27Z", "type": "Journal Article", "created": "2021-03-04", "title": "Microbial inputs at the litter layer translate climate into altered organic matter properties", "description": "

&lt;p&gt;Plant litter chemistry is altered during decomposition but it remains unknown if these alterations, and thus the composition of residual litter, will change in response to climate. Selective microbial mineralization of litter components and the accumulation of microbial necromass can drive litter compositional change, but the extent to which these mechanisms respond to climate remains poorly understood. We addressed this knowledge gap by studying needle litter decomposition along a boreal forest climate transect. Specifically, we investigated how the composition and/or metabolism of the decomposer community varies with climate, and if that variation is associated with distinct modifications of litter chemistry during decomposition. We analyzed the composition of microbial phospholipid fatty acids (PLFAs) in the litter layer and measured natural abundance &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C&lt;sub&gt;PLFA&lt;/sub&gt; values as an integrated measure of microbial metabolisms. Changes in litter chemistry and &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C values were measured in litterbag experiments conducted at each transect site. A warmer climate was associated with higher litter nitrogen concentrations as well as altered microbial community structure (lower fungi:bacteria ratios) and microbial metabolism (higher &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C&lt;sub&gt;PLFA&lt;/sub&gt;). Litter in warmer transect regions accumulated less aliphatic&amp;#8208;C (lipids, waxes) and retained more O&amp;#8208;alkyl&amp;#8208;C (carbohydrates), consistent with enhanced &lt;sup&gt;13&lt;/sup&gt;C&amp;#8208;enrichment in residual litter, than in colder regions. These results suggest that chemical changes during litter decomposition will change with climate, driven primarily by indirect climate effects (e.g., greater nitrogen availability and decreased fungi:bacteria ratios) rather than direct temperature effects. A positive correlation between microbial biomass &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C values and &lt;sup&gt;13&lt;/sup&gt;C&amp;#8208;enrichment during decomposition suggests that change in litter chemistry is driven more by distinct microbial necromass inputs than differences in the selective removal of litter components. Our study highlights the role that microbial inputs during early litter decomposition can play in shaping surface litter contribution to soil organic matter as it responds to climate warming effects such as greater nitrogen availability.&lt;/p&gt;

", "keywords": ["DECOMPOSITION", "C-13", "CP‐", "necromass", "litter decomposition", "COMMUNITY COMPOSITION", "Soil", "CARBON SEQUESTRATION", "Taiga", "boreal forest", "bacteria", "C-13 NMR", "TEMPERATURE", "Biochemistry", " cell and molecular biology", "Soil Microbiology", "FUNGAL", "2. Zero hunger", "MAS C-13‐", "Fungi", "04 agricultural and veterinary sciences", "15. Life on land", "NMR", "6. Clean water", "climate transect", "Plant Leaves", "13. Climate action", "FOREST SOILS", "PLFA", "0401 agriculture", " forestry", " and fisheries", "fungi", "FATTY-ACIDS", "BULK CARBON", "LIGNIN"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15420"}, {"href": "https://doi.org/10.1111/gcb.15420"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcb.15420", "name": "item", "description": "10.1111/gcb.15420", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.15420"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-16T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2006.01172.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:33Z", "type": "Journal Article", "created": "2006-07-06", "title": "Total Soil C And N Sequestration In A Grassland Following 10 Years Of Free Air Co2 Enrichment", "description": "Abstract

Soil C sequestration may mitigate rising levels of atmospheric CO2. However, it has yet to be determined whether net soil C sequestration occurs in N\uffe2\uff80\uff90rich grasslands exposed to long\uffe2\uff80\uff90term elevated CO2. This study examined whether N\uffe2\uff80\uff90fertilized grasslands exposed to elevated CO2 sequestered additional C. For 10 years, Lolium perenne, Trifolium repens, and the mixture of L. perenne/T. repens grasslands were exposed to ambient and elevated CO2 concentrations (35 and 60\uffe2\uff80\uff83Pa pCO2). The applied CO2 was depleted in \uffce\uffb413C and the grasslands received low (140\uffe2\uff80\uff83kg\uffe2\uff80\uff83ha\uffe2\uff88\uff921) and high (560\uffe2\uff80\uff83kg\uffe2\uff80\uff83ha\uffe2\uff88\uff921) rates of 15N\uffe2\uff80\uff90labeled fertilizer. Annually collected soil samples from the top 10\uffe2\uff80\uff83cm of the grassland soils allowed us to follow the sequestration of new C in the surface soil layer. For the first time, we were able to collect dual\uffe2\uff80\uff90labeled soil samples to a depth of 75\uffe2\uff80\uff83cm after 10 years of elevated CO2 and determine the total amount of new soil C and N sequestered in the whole soil profile. Elevated CO2, N\uffe2\uff80\uff90fertilization rate, and species had no significant effect on total soil C. On average 9.4\uffe2\uff80\uff83Mg new C\uffe2\uff80\uff83ha\uffe2\uff88\uff921 was sequestered, which corresponds to 26.5% of the total C. The mean residence time of the C present in the 0\uffe2\uff80\uff9310\uffe2\uff80\uff83cm soil depth was calculated at 4.6\uffc2\uffb11.5 and 3.1\uffc2\uffb11.1 years for L. perenne and T. repens soil, respectively. After 10 years, total soil N and C in the 0\uffe2\uff80\uff9375\uffe2\uff80\uff83cm soil depth was unaffected by CO2 concentration, N\uffe2\uff80\uff90fertilization rate and plant species. The total amount of 15N\uffe2\uff80\uff90fertilizer sequestered in the 0\uffe2\uff80\uff9375\uffe2\uff80\uff83cm soil depth was also unaffected by CO2 concentration, but significantly more 15N was sequestered in the L. perenne compared with the T. repens swards: 620 vs. 452\uffe2\uff80\uff83kg\uffe2\uff80\uff83ha\uffe2\uff88\uff921 at the high rate and 234 vs. 133\uffe2\uff80\uff83kg\uffe2\uff80\uff83ha\uffe2\uff88\uff921 at the low rate of N fertilization. Intermediate values of 15N recovery were found in the mixture. The fertilizer derived N amounted to 2.8% of total N for the low rate and increased to 8.6% for the high rate of N application. On average, 13.9% of the applied 15N\uffe2\uff80\uff90fertilizer was recovered in the 0\uffe2\uff80\uff9375\uffe2\uff80\uff83cm soil depth in soil organic matter in the L. perenne sward, whereas 8.8% was recovered under the T. repens swards, indicating that the N2\uffe2\uff80\uff90fixing T. repens system was less effective in sequestering applied N than the non\uffe2\uff80\uff90N2\uffe2\uff80\uff90fixing L. perenne system. Prolonged elevated CO2 did not lead to an increase in whole soil profile C and N in these fertilized pastures. The potential use of fertilized and regular cut pastures as a net soil C sink under long\uffe2\uff80\uff90term elevated CO2 appears to be limited and will likely not significantly contribute to the mitigation of anthropogenic C emissions.

", "keywords": ["2. Zero hunger", "plant", "04 agricultural and veterinary sciences", "15. Life on land", "nitrogen pools", "carbon-dioxide", "forest soils", "trifolium-repens l", "lolium-perenne", "litter quality", "0401 agriculture", " forestry", " and fisheries", "n-15-labeled fertilizer", "organic-matter", "elevated atmospheric co2"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2006.01172.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2486.2006.01172.x", "name": "item", "description": "10.1111/j.1365-2486.2006.01172.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2006.01172.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-04T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2012.02657.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:37Z", "type": "Journal Article", "created": "2012-07-10", "title": "Variation In Soil Carbon Stocks And Their Determinants Across A Precipitation Gradient In West Africa", "description": "Abstract

We examine the influence of climate, soil properties and vegetation characteristics on soil organic carbon (SOC) along a transect of West African ecosystems sampled across a precipitation gradient on contrasting soil types stretching from Ghana (15\uffc2\uffb0N) to Mali (7\uffc2\uffb0N). Our findings derive from a total of 1108 soil cores sampled over 14 permanent plots. The observed pattern in SOC stocks reflects the very different climatic conditions and contrasting soil properties existing along the latitudinal transect. The combined effects of these factors strongly influence vegetation structure. SOC stocks in the first 2\uffc2\uffa0m of soil ranged from 20\uffc2\uffa0Mg\uffc2\uffa0C\uffc2\uffa0ha\uffe2\uff88\uff921 for a Sahelian savanna in Mali to over 120\uffc2\uffa0Mg\uffc2\uffa0C\uffc2\uffa0ha\uffe2\uff88\uff921 for a transitional forest in Ghana. The degree of interdependence between soil bulk density (SBD) and soil properties is highlighted by the strong negative relationships observed between SBD and SOC (r2\uffc2\uffa0>\uffc2\uffa00.84). A simple predictive function capable of encompassing the effect of climate, soil properties and vegetation type on SOC stocks showed that available water and sand content taken together could explain 0.84 and 0.86 of the total variability in SOC stocks observed to 0.3 and 1.0\uffc2\uffa0m depth respectively. Used in combination with a suitable climatic parameter, sand content is a good predictor of SOC stored in highly weathered dry tropical ecosystems with arguably less confounding effects than provided by clay content. There was an increased contribution of resistant SOC to the total SOC pool for lower rainfall soils, this likely being the result of more frequent fire events in the grassier savannas of the more arid regions. This work provides new insights into the mechanisms determining the distribution of carbon storage in tropical soils and should contribute significantly to the development of robust predictive models of biogeochemical cycling and vegetation dynamics in tropical regions.

", "keywords": ["550", "Tropical ecosystems", "biotic controls", "West africa", "01 natural sciences", "forest soils", "land-use change", "Precipitation gradient", "Soil bulk density", "senegal", "cycle feedback", "Life Science", "Resistant organic carbon", "organic-matter", "0105 earth and related environmental sciences", "2. Zero hunger", "info:eu-repo/classification/ddc/550", "savanna soils", "ddc:550", "Soil organic carbon", "sequestration", "04 agricultural and veterinary sciences", "15. Life on land", "stabilization", "Earth sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "texture", "Soil carbon stocks"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2012.02657.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2486.2012.02657.x", "name": "item", "description": "10.1111/j.1365-2486.2012.02657.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2012.02657.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-03-02T00:00:00Z"}}, {"id": "10.1111/nph.19450", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:47Z", "type": "Journal Article", "created": "2023-11-30", "title": "A step forward in fungal biomass estimation \u2013 a new protocol for more precise measurements of soil ergosterol with liquid chromatography\u2010mass spectrometry and comparison of extraction methods", "description": "Significant differences between ergosterol protocols and their yield call for harmonization of methodologies. We propose an extraction protocol with KOH in methanol with cyclohexane for liquid\u2013liquid extraction. The novel LC\u2013MS method proved to be superior to the HPLC-UV method for soil samples because of the higher quality of the peaks and the possibility of following peak purity. Moreover, the LC\u2013MS method has 10 times lower detection limit than that of HPLC-UV.", "keywords": ["Soil", "selected ion recording", "Liquid Chromatography-Mass Spectrometry", "Ergosterol", "mineral soil", "ta1182", "Fungi", "ergosterol fragmentation", "Biomass", "540", "forest soil", "peatlands", "Soil Microbiology"]}, "links": [{"href": "https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.19450"}, {"href": "https://doi.org/10.1111/nph.19450"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/nph.19450", "name": "item", "description": "10.1111/nph.19450", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.19450"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-11-29T00:00:00Z"}}, {"id": "10.1139/x78-044", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:56Z", "type": "Journal Article", "created": "2007-11-26", "title": "Biomass And Nutrient Distribution In Aspen, Pine, And Spruce Stands On The Same Soil Type In Minnesota", "description": "

Vegetation and soils were sampled in adjacent 40-year-old stands of red pine (Pinusresinosa Ait.), jack pine (Pinusbanksiana Lamb.), white spruce (Piceaglauca (Moench.) Voss), and aspen (Populustremuloides Michx., P. grandidentata Michx.) on a very fine sandy loam soil in north-central Minnesota. Total tree biomass was greatest for red pine followed by aspen, spruce, and jack pine. Nutrient weights (N, P, K, Ca, Mg) in the trees were greatest in aspen followed generally by spruce, red pine, and jack pine. Particularly large proportions of biomass and nutrients were found in aspen bark and spruce foliage and branches. Understory biomass contributed less than 1.2% of the total organic matter in the vegetation\uffe2\uff80\uff93soil complex but contributed up to 5.0% of the nutrients. Exchangeable Ca in the surface soil was much lower under aspen and spruce than under the pines. No significant soil differences between species were detected below 36\uffe2\uff80\uff82cm. Harvesting the entire aboveground portion of the tree would remove up to three times more nutrients from the site than would harvesting only the bole.

", "keywords": ["0106 biological sciences", "Yield", "Spermatophyta", "Angiosperms", "Nitrogen", "Sandy Loam", "plant nutrition", "Coniferopsida: Gymnospermae", "Gymnosperms", "magnesium", "Pinus Banksiana", "01 natural sciences", "nitrogen", "Dicots", "forest soils", "temperate zones", "Picea Glauca", "Populus Tremuloides", "nutrients", "Spermatophytes", "Magnesium", "phosphorus", "Plantae", "Pinus Resinosa", "Forest Sciences", "soil types ecological", "calcium", "Vascular Plants", "Salicaceae: Dicotyledones", "potassium", "Populus Grandidentata", "Phosphorus", "Plants", "15. Life on land", "nutrition", "Angiospermae", "Tracheophyta: Plantae", "Potassium", "Calcium"], "contacts": [{"organization": "Alban, David H., Perala, Donald A., Schlaegel, Bryce E.,", "roles": ["creator"]}]}, "links": [{"href": "https://digitalcommons.usu.edu/context/aspen_bib/article/5834/viewcontent/Alban412.pdf"}, {"href": "https://doi.org/10.1139/x78-044"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Canadian%20Journal%20of%20Forest%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1139/x78-044", "name": "item", "description": "10.1139/x78-044", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1139/x78-044"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1978-09-01T00:00:00Z"}}, {"id": "10.1186/s13595-024-01238-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:01Z", "type": "Journal Article", "created": "2024-06-04", "title": "There is a need to better take into account forest soils in the planned soil monitoring law of the European Union", "description": "Abstract Key message

A Soil Monitoring Law to improve soil health across all land uses has been proposed by the European Commission. As forests soils have different chemical and physical properties as well as biogeochemical dynamics compared to agricultural land, they also face different challenges in maintaining and restoring soil health. Examples are soil acidification, eutrophication by atmospheric deposition, responses to climate change, and loss of biodiversity. Therefore, we propose forest soil specific health descriptors and thresholds based on experience and knowledge from existing long-term monitoring programs.

", "keywords": ["0106 biological sciences", "2. Zero hunger", "ICP Forests", "soil health", "tresholds", "Forestry", "ICP forests", "Forest soil monitoring", "SD1-669.5", "15. Life on land", "01 natural sciences", "indicators", "630", "forest floor", "forest soil monitoring", "13. Climate action", "Soil health", "11. Sustainability", "Indicators", "Thresholds", "Forest floor", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1186/s13595-024-01238-7.pdf"}, {"href": "https://doi.org/10.1186/s13595-024-01238-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Annals%20of%20Forest%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1186/s13595-024-01238-7", "name": "item", "description": "10.1186/s13595-024-01238-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1186/s13595-024-01238-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-04T00:00:00Z"}}, {"id": "10.1590/s0100-06832002000200016", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:21Z", "type": "Journal Article", "created": "2014-10-01", "title": "Estoques De Carbono E Nitrog\u00eanio E Distribui\u00e7\u00e3o De Fra\u00e7\u00f5es Org\u00e2nicas De Latossolo Do Cerrado Sob Diferentes Sistemas De Cultivo", "description": "

Este estudo teve por objetivo avaliar o efeito de sistemas de cultivo sobre os estoques de carbono e nitrog\uffc3\uffaanio e sobre a distribui\uffc3\uffa7\uffc3\uffa3o de fra\uffc3\uffa7\uffc3\uffb5es (leve e pesada) da mat\uffc3\uffa9ria org\uffc3\uffa2nica de Latossolo Vermelho-Amarelo, em experimento da Embrapa Arroz e Feij\uffc3\uffa3o (GO). Os tratamentos amostrados consistiram da combina\uffc3\uffa7\uffc3\uffa3o de dois sistemas de preparo do solo (plantio direto e ara\uffc3\uffa7\uffc3\uffa3o mais gradagem do solo) com duas rota\uffc3\uffa7\uffc3\uffb5es: (1) pousio/arroz - pousio/soja e (2) crotal\uffc3\uffa1ria/arroz - milheto/soja. Como refer\uffc3\uffaancia, foi amostrada tamb\uffc3\uffa9m uma \uffc3\uffa1rea de Cerrado, nas adjac\uffc3\uffaancias do local do experimento. As determina\uffc3\uffa7\uffc3\uffb5es de C e N das diferentes fra\uffc3\uffa7\uffc3\uffb5es org\uffc3\uffa2nicas foram realizadas entre os meses de janeiro e agosto de 2000. Em rela\uffc3\uffa7\uffc3\uffa3o ao Cerrado, houve uma redu\uffc3\uffa7\uffc3\uffa3o de cerca de 50 % nos teores de C e N dos solos cultivados. Os estoques de C e N nas \uffc3\uffa1reas cultivadas n\uffc3\uffa3o se mostraram inferiores nas \uffc3\uffa1reas com revolvimento de solo, em rela\uffc3\uffa7\uffc3\uffa3o \uffc3\uffa0s \uffc3\uffa1reas sob plantio direto. A maior parte (60-90 %) do carbono mostrou-se associada \uffc3\uffa0s fra\uffc3\uffa7\uffc3\uffb5es granulom\uffc3\uffa9tricas mais finas e a ara\uffc3\uffa7\uffc3\uffa3o do solo aumentou esta tend\uffc3\uffaancia. Os teores de C nas fra\uffc3\uffa7\uffc3\uffb5es leves foram reduzidos com a substitui\uffc3\uffa7\uffc3\uffa3o da vegeta\uffc3\uffa7\uffc3\uffa3o de Cerrado pelos agroecossistemas, e essa fra\uffc3\uffa7\uffc3\uffa3o da mat\uffc3\uffa9ria org\uffc3\uffa2nica do solo (MOS) caracterizou-se como o indicador mais sens\uffc3\uffadvel das altera\uffc3\uffa7\uffc3\uffb5es causadas pelos sistemas de cultivo avaliados sobre o teor da MOS.

", "keywords": ["preparo do solo", "2. Zero hunger", "solo sob floresta", "Agriculture (General)", "fracionamento f\u00edsico", "04 agricultural and veterinary sciences", "forest soil", "mat\u00e9ria org\u00e2nica", "S1-972", "rota\u00e7\u00e3o de culturas", "crop rotation", "soil organic matter", "tillage", "physical fractionation", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1590/s0100-06832002000200016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Revista%20Brasileira%20de%20Ci%C3%AAncia%20do%20Solo", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-06832002000200016", "name": "item", "description": "10.1590/s0100-06832002000200016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-06832002000200016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-06-01T00:00:00Z"}}, {"id": "10.17221/9/2008-swr", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:27Z", "type": "Journal Article", "created": "2018-02-11", "title": "The Impact Of Windthrow And Fire Disturbances On Selected Soil Properties In The Tatra National Park", "description": ": In November 2004, forest stands in the Tatra National Park (TANAP) were affected by windthrow and in July 2005, the wildfire broke out on a part of the affected area. The objective of this study is to evaluate the impact of the windthrow and fire disturbances on soil microbial activity. Basal and potential soil respiration, N-mineralisation, catalase activity, soil microbial biomass, and cellulase activity were measured in soil samples taken from the A-horizon (depth of 0-10 cm) along 100 m transects established on 4 plots (reference site, burnt, non-extracted, and extracted sites) in October 2006. Some soil microbial characteristics exhibited a high spatial variability, especially microbial biomass and N-mineralisation. Significant differences in soil microbial characteristics (especially basal soil respiration and catalase activity) between plots were found. Generally, the highest microbial activity was revealed on the plot affected by fire. Soil microbial activity was similar on the extracted and non-extracted sites.", "keywords": ["0106 biological sciences", "windthrow", "S", "0401 agriculture", " forestry", " and fisheries", "Agriculture", "04 agricultural and veterinary sciences", "forest soil", "microbial activity", "01 natural sciences", "wildfire", "spruce stands"]}, "links": [{"href": "https://doi.org/10.17221/9/2008-swr"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Water%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.17221/9/2008-swr", "name": "item", "description": "10.17221/9/2008-swr", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.17221/9/2008-swr"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-12-31T00:00:00Z"}}, {"id": "10.2139/ssrn.5022374", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:58Z", "type": "Journal Article", "created": "2024-11-15", "title": "Decadal Decline in Forest Floor Soil Organic Carbon after Clear-Cutting in Nordic and Canadian Forests", "description": "

Nordic and Canadian forests store substantial amounts of carbon (C) and are largely managed in a silvicultural system with clear-cut harvest. Previous meta-analyses of harvesting effects on soil C have shown short- to long-term declines after harvest, but effects of clear-cutting on boreal and northern temperate forest soil C stocks remain unresolved. We harmonized National Forest Soil Inventory (NFSI) data from Sweden, Denmark, Finland, Norway and Canada to examine soil C stocks up to 53 years following clear-cut harvest using a space-for-time approach. We analyzed forest floor and mineral soil C stocks in coniferous and deciduous/mixed forests. Coniferous forest floor C stocks decreased for \u223c30 years after clear-cutting: when at its lowest stock level, Picea and Pinus forest floor C stocks had decreased by 23 % and 14 % relative to initial stock levels, respectively. Picea forest floor C stocks then remained close to its lowest levels until 53 years after clear-cutting, while for Pinus-dominated forests they increased again and recovered to the pre-harvest level 48 years after clear-cutting. No C stock changes were detected in the 0\u201310 cm or 10\u201320 cm mineral soil layers, while a small increase in 55\u201365 cm mineral soil was detected in Podzol soils. Data was too limited to detect statistical signals of clear-cutting for deciduous/mixed forests. Our results shows that clear-cut harvest has substantial and long-lasting effects on northern temperate and boreal forest soil C storage, and that combining data from several NFSIs can help elucidate forest management effects on soil C storage.

", "keywords": ["Forest harvest", "Temperate", "National forest soil inventory", "Soil organic carbon", "Clear-cutting", "National forest inventory", "Boreal"]}, "links": [{"href": "https://doi.org/10.2139/ssrn.5022374"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2139/ssrn.5022374", "name": "item", "description": "10.2139/ssrn.5022374", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2139/ssrn.5022374"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-01T00:00:00Z"}}, {"id": "10.5194/bg-18-2003-2021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:07Z", "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": "

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.

", "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": "10.2139/ssrn.4681574", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:58Z", "type": "Journal Article", "created": "2024-03-27", "title": "Is the organic carbon-to-clay ratio a reliable indicator of soil health?", "description": "Climate action plans under the Paris Climate Agreement and other national commitments aimed at improving soil-based ecosystem services require the operational monitoring of soil carbon (C). The European Union is aiming to enhance soil health, and as part of the proposed Soil Monitoring Law, the European Commission recommends the monitoring of the soil C loss indicator among other soil health indicators. In this study, we evaluate the feasibility of the proposed soil C loss indicator by assessing its performance using the EU-wide 2009 LUCAS soil survey data. The proposed indicator is the soil organic carbon (SOC) to clay ratio, with a threshold value of 1:13. The results are also compared with the C stock changes reported by countries to the climate convention (UNFCCC). Our results reveal that the variation in SOC and clay content at European scale exceeds that of the data used to develop the proposed indicator. We also found that the variation in the SOC content was influenced not only by clay content but also by climate and land-use reflecting C input levels. Therefore, the defined threshold is inadequate for detecting degraded soils if the SOC and clay content are beyond the conditions used to establish the criteria. Furthermore, major discrepancies were observed between the soil carbon stock changes reported by the national greenhouse gas (GHG) inventories and the proportions of degraded soils identified by using the soil C loss indicator. We conclude that employing a single indicator such as SOC:Clay ratio with one threshold value for all soils across various land covers, management practices, and climatic conditions, as defined by the European Commission for the Soil Monitoring Law, is inappropriate for monitoring soil C loss.", "keywords": ["2. Zero hunger", "agricultural soil", "550", "Forest soil", " agricultural soil", "Science", "Q", "Soil organic carbon (SOC)", "Soil monitoring", "04 agricultural and veterinary sciences", "SOC:Clay ratio", "15. Life on land", "forest soil", "01 natural sciences", "630", "6. Clean water", "12. Responsible consumption", "soil organic carbon", "13. Climate action", "soil monitoring", "LUCAS soil survey", "11. Sustainability", "soc:clay ratio", "0401 agriculture", " forestry", " and fisheries", "European mineral soils", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.2139/ssrn.4681574"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2139/ssrn.4681574", "name": "item", "description": "10.2139/ssrn.4681574", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2139/ssrn.4681574"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-01T00:00:00Z"}}, {"id": "10.2307/1940889", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:02Z", "type": "Journal Article", "created": "2006-05-09", "title": "Effects Of Invasion Of An Aspen Forest (Canada) By Dendrobaena-Octaedra (Lumbricidae) On Plant-Growth", "description": "

Effects of invasion of an aspen forest in the Canadian Rocky Mountains by the earthworm Dendrobaena octaedra (Savigny) on nutrient mineralization, soil microflora, and plant growth were investigated during the growth period of 1992. Experimental chambers with reconstructed forest floor were placed in the field and destructively sampled after 7 and 14 wk. D. octaedra enhanced the shoot biomass of the grass Agropyron trachycaulum (Link) Malte (Poaceae) and increased the shoot\uffe2\uff80\uff94to\uffe2\uff80\uff94root ratio during early plant growth. Microbial biomass, basal respiration and respiratory quotient qCO2 in L/F layer material were reduced by D. octaedra but increased in the H layer. The nutrient (NH4+, NO3\uffe2\uff80\uff94, PO43\uffe2\uff80\uff94) content in soil was also affected by D. octaedra but the effects were small. Effects of the earthworms on soil nutrient content were masked by the great variation in the data and by leaching of nutrients from experimental chambers.

", "keywords": ["roots", "microbes and plants", "soil chemistry", "growth", "populus", "microflora and plants", "Invasion effects on nutrients", "Alberta", "forest soils", "microflora and plants in aspen forest", "Dendrobaena octaedra (Oligochaeta): Element cycles", "Forest and woodland", "nutrients", "biomass production", "Invasion consequences for ecosystem processes in forest soils", "impacts of invasion in aspen forest soils", "mineralization", "Annelids", "effects", "invasion impacts on ecosystem processes", "forests", "2. Zero hunger", "plant morphology", "effects on nutrients", "biomass", "soil fertility", "grasslands", "Habitat colonization", "KananaskisValley", "woodland grasslands", "Dispersal", "04 agricultural and veterinary sciences", "15. Life on land", "invasion", "Invasion of aspen forest soils effects on nutrients", "Invertebrates", "soil biology", "introduced species", "Soil habitat", "Aspen forest soils", "Nutrient mineralization", "0401 agriculture", " forestry", " and fisheries", "dendrobaena", "Impact on habitat", "root shoot ratio", "elymus trachycaulus", "soil fauna", "forest trees", "shoots"], "contacts": [{"organization": "Scheu, Stefan, Parkinson, Dennis,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.2307/1940889"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2307/1940889", "name": "item", "description": "10.2307/1940889", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2307/1940889"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1994-12-01T00:00:00Z"}}, {"id": "10.5061/dryad.0k6djhb5k", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:52Z", "type": "Dataset", "created": "2023-08-29", "title": "Empirical data and model simulations of the effect of repeated hurricanes on soil carbon dynamics in a humid tropical forest", "description": "unspecifiedSite description Soils were sampled from the Bisley Experimental Watershed of the LEF, Puerto Rico (18.3157 deg. N, 65.7487 deg W), a Long-Term Ecological Research and Critical Zone Observatory and Network site (https://luq.lter.network). The mean maximum daily temperature at Bisley was 27 \u00baC between 1993 and 2010 (Gonzales, 2020), with little seasonality. The mean annual precipitation at Bisley was 3883 (\u00b1 864 s.d.) mm y-1 from 1988 through 2014 (Gonz\u00e1lez, 2017; Murphy et al., 2017). Rainfall occurs all year, though January through April experience slightly less precipitation than other months (Heartsill-Scalley et al., 2007). The site is a humid tropical forest with a diverse tree community of approximately 170 species > 4 cm diameter at breast height (Weaver & Murphy, 1990), and dominated by tabonuco (Dacryodes excelsa Vahl). Elevation of Bisley spans from 261 m a.s.l. at the base to 450 m a.s.l. on the ridges (Scatena, 1989). Soils in Bisley are derived from volcaniclastic sediments of andesitic parent material (Scatena, 1989).\u00a0 Ridge soils are classified as Ultisols (Typic Haplohumults), while slope soils are classified as Oxisols (inceptic and Aquic Hapludox), and valley soils are classified as Inceptisols (Typic Epiaquaepts) (Hall et al., 2015; McDowell et al., 2012; Scatena, 1989). Detailed site descriptions can be found in Scatena (1989), Heartsill-Scalley et al (2010), and McDowell et al (2012). Here we refer to soil organic C (SOC) and soil C interchangeably because there is no detectable inorganic C in these soils. Hurricane occurrence\u00a0 Figure 1: Timeline of major hurricanes that have affected Luquillo Experimental Forest between sampling dates. Nine major hurricanes (category 3 or higher) have impacted Puerto Rico between 1851 and 2019 (L\u00f3pez-Marrero et al., 2019), and five of these hurricanes have impacted the LEF. Until 1998, hurricanes had historically directly impacted the LEF approximately every 60 years (Scatena & Larsen, 1991). Before the initial sampling campaign of this study, Hurricane San Cipri\u00e1n in 1932 was the most recent storm to cause major disturbance to the LEF (Scatena & Larsen, 1991).\u00a0 However, since sampling in 1988, four major hurricanes have impacted the forest (Figure 1). Hurricane Hugo (Category 3-4) in 1989, Hurricane Georges (Category 3) in 1998, and Hurricanes Irma and Maria (Categories 5 and 4, respectively) within two weeks in 2017. The trajectory and windspeeds of all these hurricanes caused widespread defoliation. Litterfall historically takes over five years to return to pre-hurricane levels (Scatena et al., 1996).\u00a0 Sampling Sample collection occurred in 1988 and again in 2018. In both years, samples were collected from three depths: 0\u201310 cm (the A horizon), 10\u201335 cm (all of the B1 horizon and part of B2), and 35\u201360 cm (B2 to C) using an 8 cm diameter soil auger. Soils in this study were sampled at three separate sites at least 40 m from one another for each of three topographic locations, ridge, slope, and upland valley. Two separate cores were taken from a fourth topographic location in the riparian valley, that characterized a smaller proportion of the area of these watersheds (Scatena & Lugo, 1995). Riparian valley sites were ephemeral streambeds with a high boulder presence that limited sampling to less than 25 cm depth in one case. Sampling sites from 1988 were marked with flags, and samples from 2018 were collected from within 15 m of the same locations as the replicates from 1988, for consistency. Samples collected in 1988 were analyzed for bulk density, pH, soil moisture, and a suite of soil chemical properties (see Silver et al. 1994). Samples were then air-dried and stored in closed Ziploc bags within paper bags in a storage facility in Richmond, CA, USA before density fractionation in 2018. Fresh samples collected in 2018 were also characterized for pH, soil moisture, and soil chemistry. Approximately 3 g subsamples from each fresh sample in 2018 were immediately extracted with 45 mL of 0.2 M sodium citrate/0.5 M ascorbate solution, shaken for 16 hours, then centrifuged and the supernatant decanted to measure concentrations of poorly crystalline iron (Fe) oxides. Within two days of being double-bagged in Ziploc bags, fresh samples were further subsampled and analyzed for pH in a 1:1 soil-to-water slurry (Thomas, 1996) and for gravimetric soil moisture by oven-drying ~10 g subsamples at 105 \u00baC until a constant weight. Soil samples were air-dried before further processing and analysis. Air-dried soils from both sampling years were sieved to 2 mm and large roots were sorted out. Soil Density fractionation Soil was fractionated by density following the method of Swanston et al. (2005), as modified by Marin-Spiotta et al., (2009). Approximately 20 g of air-dried soil was added to centrifuge tubes. Sodium polytungstate (SPT, Na6 [H2W12O40] TC-Tungsten Compounds, Bavaria, Germany) in solution of density 1.85 g cm-3 was added to centrifuge tubes and agitated before centrifuging. The density of the SPT followed previous studies from this and nearby sites to allow direct comparison (Guti\u00e9rrez del Arroyo & Silver, 2018; Hall et al., 2015). Particulate organic matter floating at the surface after centrifugation, the free light fraction (FLF), was aspirated and then rinsed with 100 ml of deionized water 5 times on a 0.8 \u00b5m pore polycarbonate filter (Whatman Nuclepore Track Etch Membrane, Darmstadt, Germany). Rinsed FLF was oven-dried at 65 \u00baC until weight had stabilized. The remainder of the sample was combined with 70 ml of additional SPT and mixed using an electric benchtop mixer (G3U05R, Lightning, New York, NY, USA) at 1700 rpm for 1 min and sonicated in an ice bath for 3 min at 70% pulse (Branson 450 Sonifier, Danbury, CT, USA). Sonication is intended to disrupt soil structure and liberate organic matter that has been occluded in aggregates. The sonicated slurry was centrifuged again, and the light fraction at the surface, the occluded light fraction (OLF), was aspirated, rinsed, and dried using the same method as for the FLF. The remaining soil pellet was considered the heavy fraction (HF), or mineral-associated organic matter fraction. The HF was rinsed by thoroughly mixing with 150 ml of deionized water in the centrifuge tube, centrifuging, and removing the supernatant repeatedly until the fraction had been rinsed 5 times. The rinsed HF was oven-dried at 105 \u00baC until weight stabilized. The average mass recovery was 98%. Soil C and N and \u03b413C Dried bulk and HF soils were homogenized separately using a Spex Ball mill (SPEX Sample Prep Mixer Mill 8000D, Metuchen, NJ). The FLF and OLF were homogenized separately by hand using a mortar and pestle. All homogenized samples were then analyzed at U. C. Berkeley for C and N concentrations on the CE Elantech elemental analyzer (Lakewood, NJ) and for \u03b413C in the Stable Isotope Laboratory at UC Berkeley, using a CHNOS Elemental Analyzer interfaced to an IsoPrime 100 mass spectrometer (Cheadle Hulme, UK), with a long-term external precision of 0.10 %. \u00a0Soil C stocks were calculated by multiplying the C concentrations (%) by the oven-dry mass of bulk soil (< 2 mm) and dividing by depth and the bulk density as measured in 1988 (Silver et al., 1994; Throop et al., 2012). Radiocarbon Homogenized soil samples were combusted to CO2 in sealed glass tubes along with silver (Ag) and copper oxide (CuO) at the Center for Accelerator Mass Spectrometry at Lawrence Livermore National Lab. The CO2 was then graphitized on Fe powder under pressurized hydrogen gas (Vogel et al., 1984). Graphite was pressed into aluminum targets and run on the Compact Accelerator Mass Spectrometer for radiocarbon analysis (Broek et al., 2021). Radiocarbon is reported in \u039414C, following Stuiver & Polach (1977), and calculated based on the fraction of modern isotope composition, corrected for the year of sampling, and corrected for mass-dependent fractionation with observed \u03b413C values of the sample. The compact AMS had an average \u039414C precision of 3.2 %. We report the corrected \u039414C value and \u0394\u039414C, which is calculated as \u039414C of the sample minus \u039414C of the atmosphere, to account for rapidly changing atmospheric \u039414C during the study period. Atmospheric radiocarbon has been decaying nonlinearly since the peak of weapons testing in the 1950s. Radiocarbon signatures in the soil are strongly influenced by the atmospheric D14C signature, making them useful for modeling soil C age and transit time, especially since the 1950s. To compare the contribution of modern C between 1988 and 2018, it is useful to take the difference between soil and atmospheric D14C values, or DD14C, because atmospheric D14C declined between 1988 (98 %) and 2018 (4.4 %) in Northern Hemisphere Zone 2 (Hua et al., 2013). We note that the decline in atmospheric D14C is nonlinear, and thus the DD14C in 2018 soil will be less sensitive to short-term shifts in D14C inputs than the samples from 1988. Carbon age and transit time modeling Transit times and ages of C were modeled with the package \u201cSoilR\u201d (Sierra et al., 2012, 2014) in R, version 4.0.2. The change in C density fractions over time, termed C flow, was modeled using a 3-pool structure with a series flow matrix, under the simplifying assumption that C flows from the litter pool to the FLF, where it is sequentially transferred into the OLF and HF pools (Figure 2). The model structure is depicted in basic form in equation 1, \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (1)\u00a0 dC(t)/dt = Inputs - k*C \u00a0in matrix form with explicit pools in equation 2, \u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (2)\u00a0 dC(t)/dt = [Litter Inputs; 0; 0] + [-kFLF, 0, 0 ; a21,\u00a0-kOLF, 0; 0, a32, -kHRF] * [CFLF; COLF; CHF] where k is the first-order decay constant for each pool, a is the C transfer rate between pools (i.e. a21 is the transfer from FLF (pool 1) to OLF (pool 2) and a32 is the transfer from OLF (pool 2) to HF (pool 3)), and C is the C stock of each pool. The transitTime and systemAge functions within the \u201csoilR\u201d package use this model structure to solve for the distribution of ages (time since entry) of each pool, and the distribution of transit times (times between entry and exit from the bulk soil) (Sierra et al 2016). Distributions of age and transit time were time-independent and did not assume a specific distribution (Sierra et al., 2014, 2017). Figure 2: Hypothesized flow of C in soils. Free light fraction (FLF) C (pink) is either decomposed (at cycling rate -kFLF * FLF) or transferred to the occluded light fraction pool (OLF, blue) with the transfer proportion defined by a21. Carbon transfer between the OLF and heavy fraction (HF, purple) is defined by transfer coefficient a32, and is respired from these pools at cycling rates -kOLF* OLF and -kHF* HF, respectively. Figure adapted from Sierra et al. (2012). Soil D14C and C stock mean and standard deviations from each time point, depth, and fraction were used to constrain the matrix model describing the movement of C through three soil pools and losses of C from each pool. Topography was not a strong predictor of patterns in D14C, C stocks, or C fractions, so samples from all topographies were aggregated for model simulations. The model used mean observed C content in each pool for each depth in 1988 as initial conditions for SOC stocks. Above and belowground litter inputs at 0\u201310 cm were assumed to be 900 g C m-2 in non-hurricane or hurricane recovery years, based on observations from the same site (Liu et al., 2018; Scatena et al., 1996; Silver et al., 1996; Vogt et al., 1996). Inputs to the 10\u201335 cm and 35\u201360 cm depths were estimated using observations of live fine roots on the surface and typical root distribution in the forest (Silver & Vogt, 1993). Total root input is approximately threefold the input of fine roots alone (McCormack et al., 2015; Yaffar & Norby, 2020), and live fine roots in the 0\u201310 cm depth had a mean biomass of 80 - 250 g C m-2 \u00a0(Hall et al., 2015), suggesting that total root C inputs of approximately 450 g C m-2 to the surface would be well within the expected range. Root inputs below 0\u201310 cm were estimated assuming that inputs follow the typical distribution of root biomass in Puerto Rican tropical forests, with 60\u201370% of root biomass in 0\u201310 cm, an additional 20-30% of biomass in 10\u201335 cm (~135 g C m-2\u00ad), and 5\u20138% of biomass is in the 35\u201360 cm depth (~40 g C m-2\u00ad) (Silver & Vogt, 1993; Yaffar & Norby, 2020). The model was parameterized under two scenarios for each depth: 1) constant inputs, assuming a steady-state undisturbed forest, and 2) hurricane inputs, which simulated the input fluxes from defoliation during the three major hurricanes, followed by a subsequent reduction in litter inputs and then litterfall increasing linearly to pre-hurricane inputs over 6 years (Scatena et al., 1996; Silver et al., 1996; Vogt et al., 1996). Hurricane inputs were imposed as an additional pulse of litter inputs to each depth interval, declining with depth. \u00a0The 0\u201310 cm interval received 100% of the surface input pulse, the 10\u201335 cm depth received a pulse of root inputs equivalent to 30% of the surface input pulse, and the 35\u201360 cm depth received root inputs equal to 10% of the surface input pulse. Surface litter pulses under hurricanes were specified according to measured litterfall values and were 42.5 g C m-2\u00ad to the surface in 1989 (Hurricane Hugo) and 1998 (Hurricane Georges) (Scatena et al., 1993; Silver et al., 1996) and 1611 g C m-2 \u00a0in 2017 (Hurricanes Irma and Maria) (Liu et al. 2018a). The same soil D14C and C stock observations were used to constrain the model under each scenario, with only the input regime varying. Parameters of the transfer matrix (-k\u00ad\u00adFLF, -k\u00ad\u00adOLF, -k\u00ad\u00adHF, a21, a32) were constrained using a cost function to accept or reject potential parameter sets over 1000 iterations, based on observed D14C and C stock means and standard errors from both time points (1988 and 2018). A Markov chain Monte Carlo (MCMC) simulation initialized with cost-optimized parameters was run to assimilate observed data and optimize parameter choices to the observations using function modMCMC() from R package \u201cFME\u201d (Sierra et al., 2014; Soetaert & Petzoldt, 2010). The MCMC was iterated over at least 20,000 simulations or until parameter solutions converged according to the trace, which was over 100,000 iterations at the 35\u201360 cm depth. The first half of the iterations was considered the burn-in period before the chain started to converge near an equilibrium, and these iterations were discarded in calculations of optimal parameters. The model output for the surface soils of the HF pool was validated using published radiocarbon values from the mineral-associated fraction (the only fraction analyzed) of samples from the site taken in 2012 (Hall et al., 2015).\u00a0 Bulk and pool soil C age and transit time density distributions and mean values were calculated using the systemAge() and transitTime() functions from the \u201cSoilR\u201d package. Mean density distributions were calculated using the mean parameter set given from the MCMC analysis. Standard deviation from the mean was calculated using the systemAge() and transitTime() functions on 200 sets of five parameters selected randomly within one standard deviation of the mean of each parameter given as output from the MCMC. Lower and upper limits of SOC ages and transit times were calculated using the upper and lower ranges of these iterations. Statistics Statistics were run in R, version 4.0.2 (R Core Team, 2020). The statistical model selection followed the recommendations of Zuur et al (2009). Statistical models were chosen using a linear mixed effects model in package \u201clme4\u201d, with random slopes accounting for the influence each core, or sampling site, had on the response variable values as they varied with depth. This random effect of the core site on the depth effect was evaluated using a restricted maximum likelihood approach and was included in the initial evaluation of all model comparisons. Linear mixed effect models included year, topographic position, depth, and interactions as fixed factors, and the depth effect of each core as a random factor for each of the response variables: C concentration, N concentration, d13C, DD14C. In evaluations of some response variables with AIC and BIC criteria, the random effect no longer enhanced the model, and model comparison proceeded using ANOVAs of linear models without random effects. Topographic effects on C concentrations are discussed in the supplemental information. Model assumptions were evaluated using the check_model function in R package \u201cperformance\u201d, to check for multicollinearity, normality of residuals, homoscedasticity, homogeneity of variance, influential observations, and normality of random effects. In the cases when random effects were significant (bulk soil d13C and DD14C, FLF DD14C and HF C and N concentrations), fixed effects were chosen using ANOVA of subsequent models using maximum likelihood estimation, with the random effects held constant. Once fixed effects were established, the model was re-fitted using a restricted maximum likelihood approach to report model estimates, and an ANOVA was run to determine the significance of the response variable. In all cases, P-values were estimated using Tukey\u2019s honest significant post-hoc test to assess significant differences between variables, in the package \u201cagricolae\u201d in R, and contrasts and standard errors of contrasts were estimated using lsmeans() function in package \u201clsmeans\u201d in R. Values of\u00a0P < 0.10 were reported as significant unless otherwise specified. The topographic position was not a significant predictor for most variables, so results are reported as means aggregated across positions.", "keywords": ["soil organic carbon", "Transit time", "Tropical forest soil", "FOS: Earth and related environmental sciences", "Soil R", "density fractions", "Radiocarbon"], "contacts": [{"organization": "Mayer, Allegra", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.0k6djhb5k"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.0k6djhb5k", "name": "item", "description": "10.5061/dryad.0k6djhb5k", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.0k6djhb5k"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-04-01T00:00:00Z"}}, {"id": "10.5061/dryad.rn8pk0ph5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:01Z", "type": "Dataset", "title": "Drivers of soil organic carbon stock during tropical forest succession", "description": "Soil organic matter contributes to productivity in terrestrial ecosystems and contains more carbon than is found in the atmosphere. Yet, there is little understanding of soil organic carbon (SOC) sequestration processes during tropical forest succession, particularly after land abandonment from agriculture practices. Here we used vegetation and environmental data from two large-scale surveys covering a total landscape area of 20,000 ha in Southeast Asia to investigate the effects of plant species diversity, functional trait diversity, phylogenetic diversity, aboveground biomass, and environmental factors on SOC sequestration during forest succession. We found that functional trait diversity plays an important role in determining SOC sequestration across successional trajectories. Increases in SOC carbon storage were associated with indirect positive effects of species diversity and succession age via functional trait diversity, but phylogenetic diversity and aboveground biomass showed no significant relationship with SOC stock. Furthermore, the effects of soil properties and functional trait diversity on SOC carbon storage shift across elevation. Synthesis: Our results suggest that reforestation and restoration management practices that implement a trait-based approach by combining long-lived and short-lived species (conservative and acquisitive traits) to increase plant functional diversity could enhance SOC sequestration for climate change mitigation and adaptation efforts, as well as accelerate recovery of healthy soils.", "keywords": ["2. Zero hunger", "tropical forest", "FOS: Agriculture", " forestry", " and fisheries", "15. Life on land", "forest soil", "functional diversity", "plant diversity", "swidden agriculture", "soil organic carbon", "13. Climate action", "forest succession", "functional traits", "tropical forest ecology", "soil carbon stock"]}, "links": [{"href": "https://doi.org/10.5061/dryad.rn8pk0ph5"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.rn8pk0ph5", "name": "item", "description": "10.5061/dryad.rn8pk0ph5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.rn8pk0ph5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-05-26T00:00:00Z"}}, {"id": "10.5194/bg-2-159-2005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:08Z", "type": "Journal Article", "created": "2010-04-29", "description": "

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>SGFOR>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).

", "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/egusphere-egu21-5218", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:13Z", "type": "Journal Article", "created": "2021-03-04", "title": "Microbial inputs at the litter layer translate climate into altered organic matter properties", "description": "

&lt;p&gt;Plant litter chemistry is altered during decomposition but it remains unknown if these alterations, and thus the composition of residual litter, will change in response to climate. Selective microbial mineralization of litter components and the accumulation of microbial necromass can drive litter compositional change, but the extent to which these mechanisms respond to climate remains poorly understood. We addressed this knowledge gap by studying needle litter decomposition along a boreal forest climate transect. Specifically, we investigated how the composition and/or metabolism of the decomposer community varies with climate, and if that variation is associated with distinct modifications of litter chemistry during decomposition. We analyzed the composition of microbial phospholipid fatty acids (PLFAs) in the litter layer and measured natural abundance &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C&lt;sub&gt;PLFA&lt;/sub&gt; values as an integrated measure of microbial metabolisms. Changes in litter chemistry and &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C values were measured in litterbag experiments conducted at each transect site. A warmer climate was associated with higher litter nitrogen concentrations as well as altered microbial community structure (lower fungi:bacteria ratios) and microbial metabolism (higher &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C&lt;sub&gt;PLFA&lt;/sub&gt;). Litter in warmer transect regions accumulated less aliphatic&amp;#8208;C (lipids, waxes) and retained more O&amp;#8208;alkyl&amp;#8208;C (carbohydrates), consistent with enhanced &lt;sup&gt;13&lt;/sup&gt;C&amp;#8208;enrichment in residual litter, than in colder regions. These results suggest that chemical changes during litter decomposition will change with climate, driven primarily by indirect climate effects (e.g., greater nitrogen availability and decreased fungi:bacteria ratios) rather than direct temperature effects. A positive correlation between microbial biomass &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C values and &lt;sup&gt;13&lt;/sup&gt;C&amp;#8208;enrichment during decomposition suggests that change in litter chemistry is driven more by distinct microbial necromass inputs than differences in the selective removal of litter components. Our study highlights the role that microbial inputs during early litter decomposition can play in shaping surface litter contribution to soil organic matter as it responds to climate warming effects such as greater nitrogen availability.&lt;/p&gt;

", "keywords": ["DECOMPOSITION", "C-13", "CP‐", "necromass", "litter decomposition", "COMMUNITY COMPOSITION", "Soil", "CARBON SEQUESTRATION", "Taiga", "boreal forest", "bacteria", "C-13 NMR", "TEMPERATURE", "Biochemistry", " cell and molecular biology", "Soil Microbiology", "FUNGAL", "2. Zero hunger", "MAS C-13‐", "Fungi", "04 agricultural and veterinary sciences", "15. Life on land", "NMR", "6. Clean water", "climate transect", "Plant Leaves", "13. Climate action", "FOREST SOILS", "PLFA", "0401 agriculture", " forestry", " and fisheries", "fungi", "FATTY-ACIDS", "BULK CARBON", "LIGNIN"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15420"}, {"href": "https://doi.org/10.5194/egusphere-egu21-5218"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/egusphere-egu21-5218", "name": "item", "description": "10.5194/egusphere-egu21-5218", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/egusphere-egu21-5218"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-16T00:00:00Z"}}, {"id": "10138/335756", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:23:44Z", "type": "Journal Article", "created": "2021-03-04", "title": "Microbial inputs at the litter layer translate climate into altered organic matter properties", "description": "

&lt;p&gt;Plant litter chemistry is altered during decomposition but it remains unknown if these alterations, and thus the composition of residual litter, will change in response to climate. Selective microbial mineralization of litter components and the accumulation of microbial necromass can drive litter compositional change, but the extent to which these mechanisms respond to climate remains poorly understood. We addressed this knowledge gap by studying needle litter decomposition along a boreal forest climate transect. Specifically, we investigated how the composition and/or metabolism of the decomposer community varies with climate, and if that variation is associated with distinct modifications of litter chemistry during decomposition. We analyzed the composition of microbial phospholipid fatty acids (PLFAs) in the litter layer and measured natural abundance &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C&lt;sub&gt;PLFA&lt;/sub&gt; values as an integrated measure of microbial metabolisms. Changes in litter chemistry and &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C values were measured in litterbag experiments conducted at each transect site. A warmer climate was associated with higher litter nitrogen concentrations as well as altered microbial community structure (lower fungi:bacteria ratios) and microbial metabolism (higher &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C&lt;sub&gt;PLFA&lt;/sub&gt;). Litter in warmer transect regions accumulated less aliphatic&amp;#8208;C (lipids, waxes) and retained more O&amp;#8208;alkyl&amp;#8208;C (carbohydrates), consistent with enhanced &lt;sup&gt;13&lt;/sup&gt;C&amp;#8208;enrichment in residual litter, than in colder regions. These results suggest that chemical changes during litter decomposition will change with climate, driven primarily by indirect climate effects (e.g., greater nitrogen availability and decreased fungi:bacteria ratios) rather than direct temperature effects. A positive correlation between microbial biomass &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C values and &lt;sup&gt;13&lt;/sup&gt;C&amp;#8208;enrichment during decomposition suggests that change in litter chemistry is driven more by distinct microbial necromass inputs than differences in the selective removal of litter components. Our study highlights the role that microbial inputs during early litter decomposition can play in shaping surface litter contribution to soil organic matter as it responds to climate warming effects such as greater nitrogen availability.&lt;/p&gt;

", "keywords": ["DECOMPOSITION", "C-13", "CP‐", "necromass", "litter decomposition", "COMMUNITY COMPOSITION", "Soil", "CARBON SEQUESTRATION", "Taiga", "boreal forest", "bacteria", "C-13 NMR", "TEMPERATURE", "Biochemistry", " cell and molecular biology", "Soil Microbiology", "FUNGAL", "2. Zero hunger", "MAS C-13‐", "Fungi", "04 agricultural and veterinary sciences", "15. Life on land", "NMR", "6. Clean water", "climate transect", "Plant Leaves", "13. Climate action", "FOREST SOILS", "PLFA", "0401 agriculture", " forestry", " and fisheries", "fungi", "FATTY-ACIDS", "BULK CARBON", "LIGNIN"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15420"}, {"href": "https://doi.org/10138/335756"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10138/335756", "name": "item", "description": "10138/335756", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10138/335756"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-16T00:00:00Z"}}, {"id": "10.5281/zenodo.14790778", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:22:06Z", "type": "Journal Article", "created": "2019-04-01", "title": "Coupled carbon and nitrogen losses in response to seven years of chronic warming in subarctic soils", "description": "Increasing temperatures may alter the stoichiometric demands of soil microbes and impair their capacity to stabilize carbon (C) and retain nitrogen (N), with critical consequences for the soil C and N storage at high latitude soils. Geothermally active areas in Iceland provided wide, continuous and stable gradients of\u00a0soil temperatures\u00a0to test this hypothesis. In order to characterize the stoichiometric demands of microbes from these subarctic soils, we incubated soils from ambient temperatures after the factorial addition of C, N and P substrates separately and in combination. In a second experiment, soils that had been exposed to different\u00a0in situ\u00a0warming intensities (+0, +0.5, +1.8, +3.4, +8.7, +15.9\u00a0\u00b0C above ambient) for seven years were incubated after the combined addition of C, N and P to evaluate the capacity of soil microbes to store and immobilize C and N at the different warming scenarios. The seven years of chronic soil warming triggered large and proportional soil C and N losses (4.1\u00a0\u00b1\u00a00.5% \u00b0C\u22121\u00a0of the stocks in unwarmed soils) from the upper 10\u202fcm of soil, with a predominant depletion of the physically accessible organic substrates that were weakly sorbed in\u00a0soil minerals\u00a0up to 8.7\u202f\u00b0C warming. Soil microbes met the increasing respiratory demands under conditions of low C accessibility at the expenses of a reduction of the standing biomass in warmer soils. This together with the strict microbial C:N stoichiometric demands also constrained their capacity of N retention, and increased the vulnerability of soil to N losses. Our findings suggest a strong control of\u00a0microbial physiology and C:N stoichiometric needs on the retention of soil N and on the resilience of soil C stocks from high-latitudes to warming, particularly during periods of vegetation dormancy and low C inputs.", "keywords": ["0301 basic medicine", "Microbial carbon and nutrients limitation", "Microbial biomass", "TERM", "03 medical and health sciences", "Temperature increase", "FOREST SOIL", "Substrate induced respiration", "ORGANIC-CARBON", "SDG 13 - Climate Action", "TEMPERATURE SENSITIVITY", "CYCLE", "106026 Ecosystem research", "METAANALYSIS", "2. Zero hunger", "106022 Mikrobiologie", "0303 health sciences", "Nitrogen loss", "CLIMATE-CHANGE", "AVAILABILITY", "15. Life on land", "106026 \u00d6kosystemforschung", "13. Climate action", "SDG 13 \u2013 Ma\u00dfnahmen zum Klimaschutz", "Nitrogen immobilization", "FEEDBACKS", "106022 Microbiology", "PLANT BIOMASS"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.14790778"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.14790778", "name": "item", "description": "10.5281/zenodo.14790778", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.14790778"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-07-01T00:00:00Z"}}, {"id": "2932651632", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:24:55Z", "type": "Journal Article", "created": "2019-04-01", "title": "Coupled carbon and nitrogen losses in response to seven years of chronic warming in subarctic soils", "description": "Increasing temperatures may alter the stoichiometric demands of soil microbes and impair their capacity to stabilize carbon (C) and retain nitrogen (N), with critical consequences for the soil C and N storage at high latitude soils. Geothermally active areas in Iceland provided wide, continuous and stable gradients of\u00a0soil temperatures\u00a0to test this hypothesis. In order to characterize the stoichiometric demands of microbes from these subarctic soils, we incubated soils from ambient temperatures after the factorial addition of C, N and P substrates separately and in combination. In a second experiment, soils that had been exposed to different\u00a0in situ\u00a0warming intensities (+0, +0.5, +1.8, +3.4, +8.7, +15.9\u00a0\u00b0C above ambient) for seven years were incubated after the combined addition of C, N and P to evaluate the capacity of soil microbes to store and immobilize C and N at the different warming scenarios. The seven years of chronic soil warming triggered large and proportional soil C and N losses (4.1\u00a0\u00b1\u00a00.5% \u00b0C\u22121\u00a0of the stocks in unwarmed soils) from the upper 10\u202fcm of soil, with a predominant depletion of the physically accessible organic substrates that were weakly sorbed in\u00a0soil minerals\u00a0up to 8.7\u202f\u00b0C warming. Soil microbes met the increasing respiratory demands under conditions of low C accessibility at the expenses of a reduction of the standing biomass in warmer soils. This together with the strict microbial C:N stoichiometric demands also constrained their capacity of N retention, and increased the vulnerability of soil to N losses. Our findings suggest a strong control of\u00a0microbial physiology and C:N stoichiometric needs on the retention of soil N and on the resilience of soil C stocks from high-latitudes to warming, particularly during periods of vegetation dormancy and low C inputs.", "keywords": ["0301 basic medicine", "Microbial carbon and nutrients limitation", "Microbial biomass", "TERM", "03 medical and health sciences", "FOREST SOIL", "Temperature increase", "ORGANIC-CARBON", "Substrate induced respiration", "SDG 13 - Climate Action", "TEMPERATURE SENSITIVITY", "CYCLE", "106026 Ecosystem research", "METAANALYSIS", "2. Zero hunger", "106022 Mikrobiologie", "0303 health sciences", "CLIMATE-CHANGE", "Nitrogen loss", "AVAILABILITY", "15. Life on land", "106026 \u00d6kosystemforschung", "13. Climate action", "SDG 13 \u2013 Ma\u00dfnahmen zum Klimaschutz", "FEEDBACKS", "Nitrogen immobilization", "106022 Microbiology", "PLANT BIOMASS"]}, "links": [{"href": "https://doi.org/2932651632"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2932651632", "name": "item", "description": "2932651632", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2932651632"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-07-01T00:00:00Z"}}, {"id": "10261/406452", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:23:53Z", "type": "Journal Article", "created": "2025-10-14", "title": "Digital Soil Health Assessment: Pedogenon Mapping and Unit\u2010Specific Thresholds for Basque Country Forest Plantations", "description": "ABSTRACT

In Europe, rural landscapes and forests have been subjected to intensive anthropogenic transformations and uses since Antiquity. Since the early 20th century, many traditionally managed forests and mountain pastures were transformed into intensive forestry plantations. Hence, it is important to assess the effects of forest plantations on soil health. The European Soil Monitoring Law (SML) proposes the establishment of soil units for monitoring soil health and soil degradation processes using time\uffe2\uff80\uff90series of several indicators: SOC:clay for soil organic carbon (SOC) loss, pH for acidification and bulk density for compaction, among others. Thresholds that may be local must be defined for these different indicators. We propose an approach in which: (1) we delineate soil units applying unsupervised classification to a set of environmental covariates, proxies of the soil\uffe2\uff80\uff90forming factors (pedogenon mapping) and (2) use semi\uffe2\uff80\uff90natural native forests (i.e., secondary forests of native species with lesser human interventions compared to past decades) as references for setting unit\uffe2\uff80\uff90specific thresholds for soil indicators (reference approach) and (3) assessing and mapping the condition of forest plantations (intensively managed forests). We apply this approach to the Basque Country using soil data from the forest monitoring network Basonet. When considering the threshold suggested by the SML for SOC:clay (<\uffe2\uff80\uff891/13), 61% of plots at 0\uffe2\uff80\uff9320\uffe2\uff80\uff89cm layer and 90% at 20\uffe2\uff80\uff9340\uffe2\uff80\uff89cm layer of plantations were in poor condition (unhealthy), while 37% of plots at 0\uffe2\uff80\uff9320\uffe2\uff80\uff89cm and 79% at 20\uffe2\uff80\uff9340\uffe2\uff80\uff89cm of semi\uffe2\uff80\uff90natural forests would be considered unhealthy. When considering semi\uffe2\uff80\uff90natural forest as references the proportion of plantation plots in poor condition for SOC:clay ranged between 14%\uffe2\uff80\uff9350% depending on the percentile used to set thresholds (5th and 25th percentiles). Forest plantations had lower soil pH compared to semi\uffe2\uff80\uff90natural forests, with 15%\uffe2\uff80\uff9360% of plantation plots with pH lower than the unit\uffe2\uff80\uff90specific thresholds (poor condition). Only 3% of topsoils and 2% of subsoils under plantations were considered unhealthy with a fixed pH threshold of 4.2. All plantation plots were in good condition (healthy) in terms of bulk density with the EU criteria, but 9.6% of semi\uffe2\uff80\uff90natural plots had greater bulk density than the suggested thresholds. Our approach demonstrates the need of considering the context of soil\uffe2\uff80\uff90forming factors when identifying thresholds for soil health indicators. Forest fires can alter the biological properties of soils. There is increasing evidence that fires cause a shift in soil microbial communities, which play a central role in forest carbon and nutrient cycling. In this study, we evaluate the effect of soil heating on soil microbial functions. We hypothesised that fire reduces the catabolic functional diversity of soil, and that post\uffe2\uff80\uff90fire plant growth enhances its recovery. To test this, we experimentally heated a forest soil at 200\uffc2\uffb0C (T200) or 450\uffc2\uffb0C (T450). Heated and unheated soils were then incubated in tubs with or without live grass ( Lolium perenne L.). We determined the functional profiles by measuring the substrate\uffe2\uff80\uff90induced respiration (SIR) using the Microresp\uffe2\uff84\uffa2 technique and analysed nutrient availability at the end of the incubation. At both temperatures, soil heating altered the respiration responses to substrate additions and the catabolic functional diversity of soils. Functional diversity was initially reduced in T200 soils but recovered at the end of the incubation. In contrast, T450 soils initially maintained the catabolic functional diversity, but decreased at the end of the incubation. Heating\uffe2\uff80\uff90induced nutrient availability stimulated the growth of grass, which in turn increased the response to several substrates and increased the functional diversity to values similar to the unheated controls. Our results suggest that fire\uffe2\uff80\uff90driven alteration of soil microbial communities has consequences at a functional level, and that the recovery of plant communities enhances the recovery of soil microbial functions.

Highlights

Soil experimental heating altered microbial functions and reduced soil functional diversity.

Soil heating also increased nutrient availability, enhancing plant growth.

Growth of plants promoted the recovery of soil functional diversity.

Post\uffe2\uff80\uff90fire recovery of functional diversity may be related to the recovery of photosynthetic tissues.

", "keywords": ["2. Zero hunger", "Incendis forestals", "Forest fires", "Aboveground biomass", "04 agricultural and veterinary sciences", "15. Life on land", "Soil microbial functions", "S\u00f2ls", "13. Climate action", "Substrate-induced respiration", "Soils", "0401 agriculture", " forestry", " and fisheries", "Catabolic functional diversity", "Forest soils", "Soil heating", "S\u00f2ls forestals"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/ejss.13290"}, {"href": "https://doi.org/10459.1/83754"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Soil%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10459.1/83754", "name": "item", "description": "10459.1/83754", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10459.1/83754"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "11585/795544", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:24:10Z", "type": "Journal Article", "created": "2020-11-19", "title": "How will a drier climate change carbon sequestration in soils of the deciduous forests of Central Europe?", "description": "Abstract

Global warming is accompanied by increasing water stress across much of our planet. We studied soil biological processes and changes in soil organic carbon (SOC) storage in 30 Hungarian oak forest sites in the Carpathian Basin along a climatic gradient (mean annual temperature (MAT) 9.6\uffe2\uff80\uff9312.1\uffc2\uffa0\uffc2\uffb0C, mean annual precipitation (MAP) 545\uffe2\uff80\uff93725\uffc2\uffa0mm) but on similar gently sloped hillsides where the parent materials are loess and weathered dust inputs dating from the end of the ice age. The purpose of this research was to understand how a drying climate, predicted for this region, might regulate long-term SOC sequestration. To examine the effects of decreasing water availability, we compared soil parameters and processes in three categories of forest that represented the moisture extremes along our gradient and that were defined using a broken-stick regression model. Soil biological activity was significantly lower in the driest (\uffe2\uff80\uff9cdry\uffe2\uff80\uff9d) forests, which had more than double the SOC concentration in the upper 30\uffc2\uffa0cm layer (3.28\uffc2\uffa0g C/100\uffc2\uffa0g soil\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff890.11 SE) compared to soils of the wettest (\uffe2\uff80\uff9chumid\uffe2\uff80\uff9d) forests (1.32\uffc2\uffa0g C/100\uffc2\uffa0g soil\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff890.09 SE), despite the fact that annual surface litter production in humid forests was\uffe2\uff80\uff89~\uffe2\uff80\uff8937% higher than in dry forests. A two-pool SOM model constrained to fit radiocarbon data indicates that turnover times for fast and slow pools are about half as long in the humid soil compared to the dry soil, and humid soils transfer C twice as efficiently from fast to slow pools. Enzyme activity and fungal biomass data also imply shorter turnover times associated with faster degradation processes in the soils of humid forests. Thermogravimetry studies suggest that more chemically recalcitrant compounds are accumulating in the soils of dry forests. Taken together, our results suggest that the predicted climate drying in this region might increase SOC storage in Central European mesic deciduous forests even as litter production decreases.Forest fires can alter the biological properties of soils. There is increasing evidence that fires cause a shift in soil microbial communities, which play a central role in forest carbon and nutrient cycling. In this study, we evaluate the effect of soil heating on soil microbial functions. We hypothesised that fire reduces the catabolic functional diversity of soil, and that post\uffe2\uff80\uff90fire plant growth enhances its recovery. To test this, we experimentally heated a forest soil at 200\uffc2\uffb0C (T200) or 450\uffc2\uffb0C (T450). Heated and unheated soils were then incubated in tubs with or without live grass (Lolium perenne L.). We determined the functional profiles by measuring the substrate\uffe2\uff80\uff90induced respiration (SIR) using the Microresp\uffe2\uff84\uffa2 technique and analysed nutrient availability at the end of the incubation. At both temperatures, soil heating altered the respiration responses to substrate additions and the catabolic functional diversity of soils. Functional diversity was initially reduced in T200 soils but recovered at the end of the incubation. In contrast, T450 soils initially maintained the catabolic functional diversity, but decreased at the end of the incubation. Heating\uffe2\uff80\uff90induced nutrient availability stimulated the growth of grass, which in turn increased the response to several substrates and increased the functional diversity to values similar to the unheated controls. Our results suggest that fire\uffe2\uff80\uff90driven alteration of soil microbial communities has consequences at a functional level, and that the recovery of plant communities enhances the recovery of soil microbial functions.

Highlights

Soil experimental heating altered microbial functions and reduced soil functional diversity.

Soil heating also increased nutrient availability, enhancing plant growth.

Growth of plants promoted the recovery of soil functional diversity.

Post\uffe2\uff80\uff90fire recovery of functional diversity may be related to the recovery of photosynthetic tissues.