As a controversial strategy to mitigate global warming, biochar application into soil highlights the need for life cycle assessment before large\uffe2\uff80\uff90scale practice. This study focused on the effect of biochar on carbon footprint of rice production. A field experiment was performed with three treatments: no residue amendment (Control), 6 t\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921 corn straw (CS) amendment, and 2.4\uffc2\uffa0t\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921 corn straw\uffe2\uff80\uff90derived biochar amendment (CBC). Carbon footprint was calculated by considering carbon source processes (pyrolysis energy cost, fertilizer and pesticide input, farmwork, and soil greenhouse gas emissions) and carbon sink processes (soil carbon increment and energy offset from pyrolytic gas). On average over three consecutive rice\uffe2\uff80\uff90growing cycles from year 2011 to 2013, the CS treatment had a much higher carbon intensity of rice (0.68\uffc2\uffa0kg CO2\uffe2\uff80\uff90C equivalent (CO2\uffe2\uff80\uff90Ce) kg\uffe2\uff88\uff921\uffc2\uffa0grain) than that of Control (0.24\uffc2\uffa0kg CO2\uffe2\uff80\uff90Ce\uffc2\uffa0kg\uffe2\uff88\uff921 grain), resulting from large soil CH4 emissions. Biochar amendment significantly increased soil carbon pool and showed no significant effect on soil total N2O and CH4 emissions relative to Control; however, due to a variation in net electric energy input of biochar production based on different pyrolysis settings, carbon intensity of rice under CBC treatment ranged from 0.04 to 0.44\uffc2\uffa0kg CO2\uffe2\uff80\uff90Ce\uffc2\uffa0kg\uffe2\uff88\uff921 grain. The results indicated that biochar strategy had the potential to significantly reduce the carbon footprint of crop production, but the energy\uffe2\uff80\uff90efficient pyrolysis technique does matter.
", "keywords": ["2. Zero hunger", "CH4", "N2O", "04 agricultural and veterinary sciences", "15. Life on land", "/dk/atira/pure/sustainabledevelopmentgoals/responsible_consumption_and_production; name=SDG 12 - Responsible Consumption and Production", "Carbon footprint", "7. Clean energy", "01 natural sciences", "6. Clean water", "12. Responsible consumption", "Biochar", "Life cycle assessment", "/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy", "13. Climate action", "8. Economic growth", "0401 agriculture", " forestry", " and fisheries", "Rice", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/gcbb.12248"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/GCB%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcbb.12248", "name": "item", "description": "10.1111/gcbb.12248", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcbb.12248"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-03-26T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.11.029", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-02-20", "title": "Effects Of Tree Harvesting, Forest Floor Removal, And Compaction On Soil Microbial Biomass, Microbial Respiration, And N Availability In A Boreal Aspen Forest In British Columbia", "description": "Abstract The effects of timber harvesting and the resultant soil disturbances (compaction and forest floor removal) on relative soil water content, microbial biomass C and N contents (C mic and N mic ), microbial biomass C:N ratio (C mic -to-N mic ), microbial respiration, metabolic quotient ( q CO 2 ), and available N content in the forest floor and the uppermost mineral soil (0\u20133\u00a0cm) were assessed in a long-term soil productivity (LTSP) site and adjacent mature forest stands in northeastern British Columbia (Canada). A combination of principal component analysis and redundancy analysis was used to test the effects of stem-only harvest, whole tree harvest plus forest floor removal, and soil compaction on the studied variables. Those properties in the forest floor were not affected by timber harvesting or soil compaction. In the mineral soil, compaction increased soil total C and N contents, relative water content, and N mic by 45%, 40%, 34% and 72%, respectively, and decreased C mic -to-N mic ratio by 29%. However, these parameters were not affected by stem only harvesting or whole tree harvesting plus forest floor removal, contrasting the reduction of white spruce and aspen growth following forest floor removal and soil compaction reported in an earlier study. Those results suggest that at the study site the short-term effects of timber harvesting, forest floor removal, and soil compaction are rather complex and that microbial populations might not be affected by the perturbations in the same way as trees, at least not in the short term.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.11.029"}, {"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.2005.11.029", "name": "item", "description": "10.1016/j.soilbio.2005.11.029", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.11.029"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.12.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-02-24", "title": "Microbial Communities, Biomass, And Activities In Soils As Affected By Freeze Thaw Cycles", "description": "Abstract Two Finnish agricultural soils (peat soil and loamy sand) were exposed to four freeze-thaw cycles (FTC), with a temperature change from \u221217.3\u00b10.4\u00a0\u00b0C to +4.1\u00b10.4\u00a0\u00b0C. Control cores from both soils were kept at constant temperature (+6.6\u00b12.0\u00a0\u00b0C) without FTCs. Soil N 2 O and CO 2 emissions were monitored during soil thawing, and the effects of FTCs on soil microbes were studied. N 2 O emissions were extremely low in peat soil, possibly due to low soil water content. Loamy sand had high N 2 O emission, with the highest emission after the second FTC. Soil freeze-thaw increased anaerobic respiration in both soil types during the first 3\u20134 FTCs, and this increase was higher in the peat soil. The microbial community structure and biomass analysed with lipid biomarkers (phospholipid fatty acids, 3- and 2- hydroxy fatty acids) were not affected by freezing-thawing cycles, nor was soil microbial biomass carbon (MIB-C). Molecular analysis of the microbial community structure with temperature gradient gel electrophoresis (TGGE) also showed no changes due the FTCs. These results show that freezing and thawing of boreal soils does not have a strong effect on microbial biomass or community structure.", "keywords": ["hiilidioksidi", "570", "biomassa", "j\u00e4\u00e4tymis-sulamissykli", "mikrobiyhteis\u00f6n rakenne", "lipidit", "maamikrobiologia", "j\u00e4\u00e4tyminen", "structure", "lipid biomarkers", "maaper\u00e4", "mikrobiyhteis\u00f6rakenne", "biomass", "TGGE", "lipidibiomarkkeri", "N2O", "sulaminen", "dityppioksidi", "04 agricultural and veterinary sciences", "15. Life on land", "freeze-thaw cycle", "6. Clean water", "13. Climate action", "l\u00e4mp\u00f6tilamuutokset", "0401 agriculture", " forestry", " and fisheries", "CO2", "Ka", "microbial community"], "contacts": [{"organization": "Koponen, H., Jaakkola, T., Kein\u00e4nen-Toivola, M.M., Kaipainen, S., Tuomainen, J., Servomaa, K., Martikainen, P.J.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.12.010"}, {"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.2005.12.010", "name": "item", "description": "10.1016/j.soilbio.2005.12.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.12.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.01.012", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-03-25", "title": "Carbon, Nitrogen And Temperature Controls On Microbial Activity In Soils From An Antarctic Dry Valley", "description": "Abstract The Antarctic dry valleys are characterized by extremely low temperatures, dry conditions and lack of conspicuous terrestrial autotrophs, but the soils contain organic C, emit CO2 and support communities of heterotrophic soil organisms. We have examined the role of modern lacustrine detritus as a driver of soil respiration in the Garwood Valley, Antarctica, by characterizing the composition and mineralization of both lacustrine detritus and soil organic matter, and relating these properties to soil respiration and the abiotic controls on soil respiration. Laboratory mineralization of organic C in soils from different, geomorphically defined, landscape elements at 10\u00a0\u00b0C was comparable with decomposition of lacustrine detritus (mean residence times between 115 and 345\u00a0d for the detritus and 410 and 1670\u00a0d for soil organic matter). The chemical composition of the detritus (C-to-N ratio=9:1\u201312:1 and low alkyl-C-to-O-alkyl-C ratio in solid-state 13C nuclear magnetic resonance spectroscopy) indicated that it was a labile, high quality resource for micro-organisms. Initial (0\u20136\u00a0d at 10\u00a0\u00b0C) respiratory responses to glucose, glycine and NH4Cl addition were positive in all the soils tested, indicating both C and N limitations on soil respiration. However, over the longer term (up to 48\u00a0d at 10\u00a0\u00b0C) differential responses occurred. Glucose addition led to net C mineralization in most of the soils. In the lake shore soils, which contained accumulated lacustrine organic matter, glucose led to substantial priming of the decomposition of the indigenous organic matter, indicating a C or energetic limitation to mineralization in that soil. By contrast, over 48\u00a0d, glycine addition led to no net C mineralization in all soils except stream edge and lake shore soils, indicating either substantial assimilation of the added C (and N), or no detectable utilization of the glycine. The Q10 values for basal respiration over the \u22120.5\u201320\u00a0\u00b0C temperature range were between 1.4 and 3.3 for the different soils, increasing to between 3.4 and 6.9 for glucose-induced respiration, and showed a temperature dependence with Q10 increasing with declining temperature. Taken together, our results strongly support contemporaneous lacustrine detritus, blown from the lake shore, as an important driver of soil respiration in the Antarctic dry valley soils.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.01.012"}, {"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.2006.01.012", "name": "item", "description": "10.1016/j.soilbio.2006.01.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.01.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-10-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.01.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-03-21", "title": "How Important Is N2o Production In Removing Atmospherically Deposited Nitrogen From Uk Moorland Catchments?", "description": "Nitrate (NO3\u2212) leaching due to anthropogenic nitrogen (N) deposition is an environmental problem in many parts of the UK uplands, associated with surface water acidification and affecting lake nutrient balances. It is often assumed that gaseous return of deposited N to the atmosphere as N2O through denitrification may provide an important sink for N. This assumption was tested for four moorland catchments (Allt a\u2019Mharcaidh in the Cairngorms, Afon Gwy in mid-Wales, Scoat Tarn in the English Lake District and River Etherow in the southern Pennines), covering gradients of atmospheric N deposition and surface water NO3\u2212 leaching, through a combination of field and laboratory experiments. Field measurements of N2O fluxes from static chambers with and without additions of NH4NO3 solution were carried out every 4 weeks over 1 yr. Wetted soil cores from the same field plots were used in experimental laboratory incubations at 5 and 15 \u00b0C with and without additions of NH4NO3 solution, followed by measurement of N2O fluxes. Field measurements showed that significant N2O fluxes occurred in only a very small number of plots with most showing zero values for much of the year. The maximum fluxes were 0.24 kg-N/ha/yr from unamended plots at the River Etherow and 0.49 kg-N/ha/yr from plots with NH4NO3 additions at the Allt a\u2019Mharcaidh. Laboratory incubation experiments demonstrated that large N2O fluxes could be induced by warming and NH4NO3 additions, with the top 5 cm of soil cores responsible for the largest fluxes, reaching 11.8 kg-N/ha/yr from a podsol at Scoat Tarn. Acetylene block experiments showed that while N2 was not likely to be a significant denitrification product in these soils, reduced N2O fluxes indicated that nitrification was an important source of N2O in many cases. A simple model of denitrification suggesting that 10\u201380% of net N inputs may be denitrified from non-agricultural soils was found to greatly over-estimate fluxes in the UK uplands. The proportion of deposition denitrified was found to be much closer to the IPCC suggested value of 1% with an upper limit of 10%. Interception of N deposition by vegetation may greatly reduce the net supply of N from this source, while soil acidification or other factors limiting carbon supply to soil microbes may prevent large denitrification fluxes even where NO3\u2212 supply is not limiting.", "keywords": ["denitrification", "nitrous oxide", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "nitrification", "6. Clean water", "moorlands", "nitrogen deposition", "acidification", "13. Climate action", "nitrate leaching", "nitrogen saturation", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.01.013"}, {"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.2006.01.013", "name": "item", "description": "10.1016/j.soilbio.2006.01.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.01.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-08-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.05.017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-07-11", "title": "Hydrolase Activities, Microbial Biomass And Bacterial Community In A Soil After Long-Term Amendment With Different Composts", "description": "Open AccessThe use of composts in agricultural soils is a widespread practice and the positive effects on soil and plants are known from numerous studies. However, there have been few attempts to compare the effects of different kinds of composts in one single study. The aim of this paper is to investigate to what extent and to which soil depth four major types of composts would affect the soil and its microbiota. In a crop-rotation field experiment, composts produced from (i) urban organic wastes, (ii) green wastes, (iii) manure and (iv) sewage sludge were applied at a rate equivalent to 175 kg N ha\u22121 yr\u22121 for 12 years. General (total organic C (Corg), total N (Nt), microbial biomass C (Cmic), and basal respiration), specific (enzyme activities related to C, N and P cycles), biochemical properties and bacterial genetic diversity (based on DGGE analysis of 16S rDNA) were analyzed at different depths (0\u201310, 10\u201320 and 20\u201330 cm). Compost treatment increased Corg at all depths from 11 g kg\u22121 for control soil to 16.7 g kg\u22121 for the case of sewage sludge compost. Total N increased with compost treatment at 0\u201310 cm and 10\u201320 cm depths, but not at 20\u201330 cm. Basal respiration and Cmic declined with depth, and the composts resulted in an increase of Cmic and basal respiration. Enzyme activities were different depend on the enzyme and among compost treatments, but in general, the enzyme activities were higher in the upper layers (0\u201310 and 10\u201320 cm) than in the 20\u201330 cm layer. Diversity of ammonia oxidizers and bacteria was lower in the control than in the compost soils. The type of compost had less influence on the composition of the microbial communities than did soil depth.", "keywords": ["PCR-DGGE", "2. Zero hunger", "Microbial activity", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Composts", "Hydrolase activities", "04 agricultural and veterinary sciences", "15. Life on land", "Bacterial communities", "6. Clean water", "Ammonia oxidizers", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.05.017"}, {"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.2006.05.017", "name": "item", "description": "10.1016/j.soilbio.2006.05.017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.05.017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-12-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.06.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-07-30", "title": "Diurnal, Seasonal, And Inter-Annual Variations Of N2o Fluxes From Native Semi-Arid Grassland Soils Of Inner Mongolia", "description": "Abstract In order to investigate the diurnal, seasonal, and inter-annual variations of nitrous oxide (N2O) flux and associated microbiological mechanisms, in situ measurements of N2O Flux from unfertilized, ungrazed, and unirrigated semi-arid grassland soils in Inner Mongolia, northeast China were undertaken using a closed chamber technique from 1995 to 2003. In addition, laboratory experiments were carried out using the acetylene inhibition method (AIM) in 1998 and 2001. The results showed no significant linear relationship between soil moisture and diurnal N2O flux, or between N2O flux and temperature (i.e., temperature at 0\u201315\u00a0cm depth, temperature of surface soil, and temperature of inner chamber air). However, the results showed a significant influence of growing season on diurnal variations of N2O flux. N2O efflux was usually high in spring or summer, and low in winter. The mean total annual N2O fluxes was 0.73\u00b10.52\u00a0kg\u00a0N2O-N\u00a0ha\u22121\u00a0yr\u22121, with a coefficient of variation of annual N2O flux of 71.6%. Based on our estimates from 5\u00a0yr of data, the total N2O emission from all of the temperate grassland soils of China was approximately 0.21\u00a0Tg\u00a0N2O-N\u00a0yr\u22121, which was about 21% of the total global flux from temperate grassland soils. It was the distribution of effective rainfall, rather than precipitation intensity, that influenced seasonal and inter-annual variations of N2O flux. Our laboratory incubation study revealed that heterotrophic nitrification was the principal source of N2O in the studied soils.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"], "contacts": [{"organization": "Rui Du, Gengchen Wang, Daren L\u00fc,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.06.012"}, {"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.2006.06.012", "name": "item", "description": "10.1016/j.soilbio.2006.06.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.06.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-12-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.05.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2007-06-16", "title": "Quantification Of Priming And Co2 Emission Sources Following The Application Of Different Slurry Particle Size Fractions To A Grassland Soil", "description": "The highest emissions of CO2 from soils and most pronounced priming effect (PE) from soils generally occur immediately after slurry application. However, the influence of different particle size slurry fractions on net soil C respiration dynamics and PE has not been studied. Therefore, a slurry separation technique based on particle sizes was used in the present study. Six distinct fractions (>2000, 425\u20132000, 250\u2013425, 150\u2013250, 45\u2013150, 250 \u03bcm fractions. The overall contribution of slurry C to total CO2 emissions was higher in smaller slurry particle size treatments in the first days after application. The addition of the various slurry fractions to soil caused both significant positive and negative PEs on the soil organic matter mineralization. The timing and type (positive or negative) of PE depended on the slurry particle size. Clearly, farm based separation pre-treatment leading to two or more fractions with different particle sizes has also the potential to reduce or modify short-term CO2 emissions immediately after slurry application to soil.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.05.012"}, {"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.2007.05.012", "name": "item", "description": "10.1016/j.soilbio.2007.05.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.05.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-10-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.08.003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-09-19", "title": "No, N2o, Ch4 And Co2 Fluxes In Winter Barley Field Of Japanese Andisol As Affected By N Fertilizer Management", "description": "The study was carried out at the experimental station of the Japan International Research Center for Agricultural Sciences to investigate gas fluxes from a Japanese Andisol under different N fertilizer managements: CD, a deep application (8\u00a0cm) of the controlled release urea; UD, a deep application (8\u00a0cm) of the conventional urea; US, a surface application of the conventional urea; and a control, without any N application. NO, N2O, CH4 and CO2 fluxes were measured simultaneously in a winter barley field under the maize/barley rotation. The fluxes of NO and N2O from the control were very low, and N fertilization increased the emissions of NO and N2O. NO and N2O from N fertilization treatments showed different emission patterns: significant NO emissions but low N2O emissions in the winter season, and low NO emissions but significant N2O emissions during the short period of barley growth in the spring season. The controlled release of the N fertilizer decreased the total NO emissions, while a deep application increased the total N2O emissions. Fertilizer-derived NO\u2013N and N2O\u2013N from the treatments CD, UD and US accounted for 0.20\u00b10.07%, 0.71\u00b10.15%, 0.62\u00b10.04%, and 0.52\u00b10.04%, 0.50\u00b10.09%, 0.35\u00b10.03%, of the applied N, respectively, during the barley season. CH4 fluxes from the control were negative on most sampling dates, and its net soil uptake was 33\u00b17.1\u00a0mg\u00a0m\u22122 during the barley season. The application of the N fertilizer decreased the uptake of atmospheric CH4 and resulted in positive emissions from the soil. CO2 fluxes were very low in the early period of crop growth while higher emissions were observed in the spring season. The N fertilization generally increased the direct CO2 emissions from the soil. N2O, CH4 and CO2 fluxes were positively correlated (P<0.01) with each other, whereas NO and CO2 fluxes were negatively correlated (P<0.05). The N fertilization increased soil-derived global warming potential (GWP) significantly in the barley season. The net GWP was calculated by subtracting the plant-fixed atmospheric CO2 stored in its aboveground parts from the soil-derived GWP in CO2 equivalent. The net GWP from the CD, UD, US and the control were all negative at \u2212243\u00b130.7, \u2212257\u00b128.4, \u2212227\u00b16.6 and \u2212143\u00b19.7\u00a0g\u00a0C\u00a0m\u22122 in CO2 equivalent, respectively, in the barley season.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.08.003"}, {"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.2006.08.003", "name": "item", "description": "10.1016/j.soilbio.2006.08.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.08.003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-01-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.09.015", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2006-10-20", "title": "Do Earthworms Increase N2o Emissions In Ploughed Grassland?", "description": "Abstract Earthworm activity has been reported to lead to increased production of the greenhouse gas nitrous oxide (N2O). This is due to emissions from worms themselves, their casts and drilosphere, as well as to general changes in soil structure. However, it remains to be determined how important this effect is on N2O fluxes from agricultural systems under realistic conditions in terms of earthworm density, soil moisture, tillage activity and residue loads. We quantified the effect of earthworm presence on N2O emissions from a pasture after simulated ploughing of the sod (\u2018grassland renovation\u2019) for different soil moisture contents during a 62-day mesocosm study. Sod (with associated soil) and topsoil were separately collected from a loamy Typic Fluvaquent. Treatments included low (L), medium (M) and high (H) moisture content, in combination with: only soil (S); soil+incorporated sod (SG); soil+incorporated sod+the anecic earthworm Aporrectodea longa (SGE). Nitrous oxide and carbon dioxide (CO2) fluxes were measured for 62\u00a0d. At the end of the incubation period, we determined N2O production under water-saturated conditions, potential denitrification and potential mineralization of the soil after removing the earthworms. Cumulative N2O and CO2 fluxes over 62\u00a0d from incorporated sod were highest for treatment HSGE (973\u00a0\u03bcg N2O-N and 302\u00a0mg CO2-C\u00a0kg\u22121 soil) and lowest for LSG (64\u00a0\u03bcg N2O-N and 188\u00a0mg CO2-C\u00a0kg\u22121 soil). Both cumulative fluxes were significantly different for soil moisture (p", "keywords": ["2. Zero hunger", "denitrification", "casts", "carbon", "permanent pastures", "04 agricultural and veterinary sciences", "15. Life on land", "fluxes", "6. Clean water", "nitrous-oxide emissions", "13. Climate action", "soil organic-matter", "community", "0401 agriculture", " forestry", " and fisheries", "denitrifying bacteria", "management"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.09.015"}, {"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.2006.09.015", "name": "item", "description": "10.1016/j.soilbio.2006.09.015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.09.015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-02-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.12.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2007-01-11", "title": "Invasion Of A Deciduous Forest By Earthworms: Changes In Soil Chemistry, Microflora, Microarthropods And Vegetation", "description": "Abstract Ecosystems of northern North America existed without earthworm fauna until European settlers arrived and introduced European species. The current extent of invasion by some of these species, Lumbricus terrestris L., Octolasion tyrtaeum Savigny and Dendrobaena octaedra Savigny, into an aspen forest in the Canadian Rocky Mountains and the effects of the invasion on soil chemistry, microflora, soil microarthropods and vegetation were investigated. Densities of earthworm species, soil structure, plant coverage and abundance were determined along three transects starting at the edge of the forest. At locations with L. terrestris, litter was incorporated into the soil, and where O. tyrtaeum was present, organic layers were mixed with mineral soil layers. Organic layers disappeared almost entirely when both species occurred together. Carbon and nitrogen concentrations were reduced in organic layers in the presence of L. terrestris and O. tyrtaeum. Microbial biomass and basal respiration were reduced when L. terrestris and O. tyrtaeum were present, presumably due to resource competition and habitat destruction. Microarthropod densities and the number of microarthropod species were strongly reduced in the presence of O. tyrtaeum (\u221275% and \u221222%, respectively), probably through mechanical disturbances, increasing compactness of the soil and resource competition. The coverage of some plant species was correlated with earthworm abundance, but the coverage of others was not. Despite harsh climatic conditions, the invasion of boreal forest ecosystems by mineral soil dwelling earthworm species is proceeding and strongly impacts soil structure, soil chemistry, microorganisms, soil microarthropods and vegetation.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.12.019"}, {"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.2006.12.019", "name": "item", "description": "10.1016/j.soilbio.2006.12.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.12.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-05-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.01.022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2007-02-27", "title": "Application Of Near Infrared Reflectance (Nir) And Fluorescence Spectroscopy To Analysis Of Microbiological And Chemical Properties Of Arctic Soil", "description": "Abstract Applicability of near infrared reflectance (NIR) and fluorescence spectroscopic techniques was tested on highly organic arctic soil. Soil samples were obtained at a long-term climate change manipulation experiment at a subarctic fell heath in Abisko, northern Sweden. The ecosystem had been exposed to treatments simulating increasing temperature (open-top greenhouses), higher nutrient availability (NPK fertilization) and increasing cloudiness (shading cloths) for 15 years prior to the sampling. For each of the 72 samples from the 0 to 5\u00a0cm soil depth and 36 samples from the 5 to 10\u00a0cm depth, the wavelength range of 400\u20132500\u00a0nm (visible and near infrared spectrum) was scanned with a NIR spectrophotometer and fluorescence excitation-emission matrices (EEMs) were recorded with a spectrofluorometer. Principal component analyses of the visible, NIR and fluorescence spectra clearly separated the treatments, which indicates that the chemical composition of the soil and its spectral properties had changed during the climate change simulation. Similarly to the results from the conventional analyses of soil chemical and microbiological properties, fertilization treatment posed strongest effects on the spectra. Partial least-squares (PLS) regression methods with cross-validation were used to analyse relationships between the spectroscopic data and the chemical and microbiological data derived from the conventional analyses. The fluorescence EEMs of the dried solid soil samples were moderately related to soil ergosterol content (correlation coefficient r=0.84), bacterial activity analysed by leucine incorporation technique (r=0.78) and total phospholipid fatty acid (PLFA) content (r=0.74), but in general fluorescence provided inferior predictions of the chemical and microbiological variables to NIR. NIR was highly related to soil organic matter content (r>0.9) and showed promising predictions of soil ergosterol content (r>0.9), microbial biomass C, microbial biomass P, and total PLFA contents (r=0.78\u20130.79). These results suggest that especially NIR could be used to predict soil organic matter and fungal biomass. Since it is rapid and inexpensive, and requires little sample mass, it could be used as a \u2018quick and dirty\u2019 technique to estimate progression of the treatment responses in long-term ecosystem experiments, where extensive soil sampling is to be avoided.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0104 chemical sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.01.022"}, {"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.2007.01.022", "name": "item", "description": "10.1016/j.soilbio.2007.01.022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.01.022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2014.02.009", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:45Z", "type": "Journal Article", "created": "2014-02-26", "title": "Pyrogenic Carbon Additions To Soil Counteract Positive Priming Of Soil Carbon Mineralization By Plants", "description": "Abstract Important due to both its role in fire-affected ecosystems, and also its proposed intentional production and application for carbon (C) management, pyrogenic organic matter (PyOM) is thought to contain very stable forms of C. However, the mechanisms behind its interactions with non-PyOM soil organic C (SOC) remain speculative, with studies often showing short-term positive and then long-term negative \u201cpriming effects\u201d on SOC decomposition after PyOM applications. Furthermore, studies of these interactions to date have been limited to systems that do not include plants. This study describes results from a 12-week greenhouse experiment where PyOM-SOC priming effects with and without plants were investigated using stable isotope partitioning. In addition, we investigated the optimal \u03b413C proxies for sources of SOC, PyOM, and plant-derived CO2 emissions. The two-factorial experiment included the presence or absence of corn plants and of 13C-labelled PyOM. In order to control for pH and nutrient addition effects from PyOM, its pH was adjusted to that of the soil and optimal nutrient and water conditions were provided to the plants. The \u03b413C of PyOM sub-components were significantly different. Significant losses of 0.4% of the applied PyOM-C occurred in the first week. We find evidence for a \u201cnegative priming\u201d effect of PyOM on SOC in the system (SOC losses are 48% lower with PyOM present), which occurred primarily during the first week, indicating it may be due to transient effects driven by easily mineralizable PyOM. Additionally, while the presence of corn plants resulted in significantly increased SOC losses (\u201cpositive priming\u201d), PyOM additions counteract this effect, almost completely eliminating net C losses either by decreasing SOC decomposition or increasing corn C additions to soil. This highlights the importance of including plants in studies of PyOM-SOC interactions.", "keywords": ["2. Zero hunger", "13. Climate action", "8. Economic growth", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Thea Whitman, Akio Enders, Johannes Lehmann,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2014.02.009"}, {"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.2014.02.009", "name": "item", "description": "10.1016/j.soilbio.2014.02.009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2014.02.009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-06-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.03.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2007-04-11", "title": "Earthworm Activity As A Determinant For N2o Emission From Crop Residue", "description": "Earthworm activity may have an effect on nitrous oxide (N2O) emissions from crop residue. However, the importance of this effect and its main controlling variables are largely unknown. The main objective of this study was to determine under which conditions and to what extent earthworm activity impacts N2O emissions from grass residue. For this purpose we initiated a 90-day (experiment I) and a 50-day (experiment II) laboratory mesocosm experiment using a Typic Fluvaquent pasture soil with silt loam texture. In all treatments, residue was applied, and emissions of NO and carbon dioxide (CO2) were measured. In experiment I the residue was applied on top of the soil surface and we tested (a) the effects of the anecic earthworm species Aporrectodea longa (Ude) vs. the epigeic species Lumbricus rubellus (Hoffmeister) and (b) interactions between earthworm activity and bulk density (1.06 vs. 1.61 g cm(-3)). In experiment II we tested the effect of L. rubellus after residue was artificially incorporated in the soil. In experiment 1, N2O emissions in the presence of earthworms significantly increased from 55.7 to 789.1 mu g N2O-N kg(-1) soil (L. rubellus; p <0.001) or to 227.2 mu g N2O-N kg(-1) soil (A. longa, p <0.05). This effect was not dependent on bulk density. However, if the residue was incorporated into the soil (experiment II) the earthworm effect disappeared and emissions were higher (1064.2 mu g N2O-N kg(-1) soil). At the end of the experiment and after removal of earthworms, a drying/wetting and freezing/thawing cycle resulted in significantly higher emissions of NO and CO2 from soil with prior presence of L. rubellus. Soil with prior presence of L. rubellus also had higher potential denitrification. We conclude that the main effect of earthworm activity on N2O emissions is through mixing residue into the soil, switching residue decomposition from an aerobic and low denitrification pathway to one with significant denitrification and NO production. Furthermore, A. longa activity resulted in more stable soil organic matter than L. rubellus. (c) 2007 Elsevier Ltd. All rights reserved.", "keywords": ["2. Zero hunger", "aporrectodea-turgida", "carbon", "octolasion-tyrtaeum", "lumbricus-terrestris", "04 agricultural and veterinary sciences", "denitrification rates", "15. Life on land", "13. Climate action", "nitrous-oxide emission", "soil organic-matter", "0401 agriculture", " forestry", " and fisheries", "agricultural soils", "denitrifying bacteria", "management"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.03.008"}, {"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.2007.03.008", "name": "item", "description": "10.1016/j.soilbio.2007.03.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.03.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-08-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.03.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2007-04-19", "title": "Earthworm Activity Affects Soil Aggregation And Organic Matter Dynamics According To The Quality And Localization Of Crop Residues - An Experimental Study (Madagascar)", "description": "Abstract Soil organic matter (SOM) plays a central role in the functioning of ecosystems, and is beneficial from agronomic and from environmental point of view. Alternative cultural systems, like direct seeding mulch-based cropping (DMC) systems, enhance carbon (C) sequestration in agricultural soils and lead to an increase in soil macrofauna. This study aimed at evaluating in field mesocosms the effects of earthworms on SOM dynamics and aggregation, as influenced by residue quality and management. In the highlands of Madagascar, buckets were filled with 2\u00a0mm-sieved clayey Inceptisol. The effects of earthworm addition (Pontoscolex corethrurus), residue addition (rice, soybean, and no addition), and localization of the residues (mulched or buried) were studied. After 5 months, soil from mesocosms with earthworms had significantly lower C concentration and higher proportion of large water-stable macroaggregates (>2000\u00a0\u03bcm) than those without earthworms, because of the production of large macroaggregates by earthworms. Earthworm effect on soil aggregation was greater with rice than with soybean residues. Casts (extracted from mesocosms with earthworms) were slightly enriched in C and showed significantly higher mineralization than the non-ingested soil (NIS), showing that at the time scale of our study, the carbon contained in the casts was not protected against mineralization. No difference in microbial biomass was found between casts and NIS. Complementary investigations are necessary to assess long-term effects of earthworm addition on SOM dynamics, the conditions of occurrence of physical protection, and the impact of earthworms on the structure of the microbial community.", "keywords": ["P33 - Chimie et physique du sol", "Pontoscolex corethrurus", "[SDE] Environmental Sciences", "2. Zero hunger", "residue management", "microbial biomass", "carbon mineralization", "Carbon mineralization", "Direct seeding mulch-based cropping systems", "Microbial biomass", "Residue management", "P34 - Biologie du sol", "04 agricultural and veterinary sciences", "15. Life on land", "630", "carbon protection", "13. Climate action", "[SDE]Environmental Sciences", "Carbon protection", "0401 agriculture", " forestry", " and fisheries", "direct seeding mulch based cropping systems"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.03.019"}, {"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.2007.03.019", "name": "item", "description": "10.1016/j.soilbio.2007.03.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.03.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-08-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.04.023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2007-05-31", "title": "Can A Mixed Stand Of N-2-Fixing And Non-Fixing Plants Restrict N2o Emissions With Increasing Co2 Concentration?", "description": "Abstract Initial effects of elevated atmospheric CO 2 concentration on N 2 O fluxes and biomass production of timothy/red clover were studied in the laboratory. The experimental design consisted of two levels of atmospheric CO 2 (ca. 360 and 720\u00a0\u03bcmol\u00a0CO 2 \u00a0mol \u22121 ) and two N fertilisation levels (5 and 10\u00a0g\u00a0N\u00a0m \u22122 ). There was a total of 36 mesocosms comprising sandy loam soil, which were equally distributed in four thermo-controlled greenhouses. In two of the greenhouses, the CO 2 concentration was kept at ambient concentration and in the other two at doubled concentration. Forage was harvested and the plants fertilised three times during the basic experiment, followed by harvest, a fertilisation with the double amount of nitrogen and rise of water level. Under elevated CO 2 , harvestable and total aboveground dry biomass production of a mixed Trifolium/Phleum stand was increased at both N treatments compared to ambient CO 2 . The N 2 O flux rates under ambient CO 2 were significantly higher at both N treatments during the early growth of mixed Phleum/Trifolium mesocosms compared to the N 2 O flux rate under elevated CO 2 . However, when the conditions were favourable for denitrification at the end of the experiment, i.e. N availability and soil moisture were high enough, the elevated CO 2 concentration enhanced the N 2 O efflux.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "7. Clean energy"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.04.023"}, {"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.2007.04.023", "name": "item", "description": "10.1016/j.soilbio.2007.04.023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.04.023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-10-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.08.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:39Z", "type": "Journal Article", "created": "2007-10-02", "title": "Bacterial And Fungal Response To Nitrogen Fertilization In Three Coniferous Forest Soils", "description": "Forest soil carbon (C) pools may act as sinks for, or sources of, atmospheric carbon dioxide, while nitrogen (N) fertilization may affect the net exchange of C in forest ecosystems. Since all major C and N processes in soil are driven by soil microorganisms, we evaluated the effects of N fertilization on biomass and bacterial and fungal activity in soils from three Norway spruce forests with different climatic and N availability conditions. N deposition and net N mineralization were higher at the sites in southern Sweden than at the site in northern Sweden. We also studied the extent to which N fertilization altered the nutrient(s) limiting bacterial growth in soil. We found that on average microbial biomass was reduced by \u223c40% and microbial activity by \u223c30% in fertilized plots. Bacterial growth rates were more negatively affected by fertilization than fungal growth rates, while fungal biomass (estimated using the phospholipid fatty acid (PLFA) 18:2\u03c96,9) decreased more than bacterial biomass as a consequence of fertilization. The microbial community structure (indicated by the PLFA pattern) was changed by fertilization, but not in the same way at the three sites. Soil bacteria were limited by a lack of carbon in all forests, with the carbon limitation becoming more evident in fertilized plots, especially in the forests that had previously been the most N-limited ones. This study thus showed that the effects of N fertilization differed depending on the conditions at the site prior to fertilization.", "keywords": ["0106 biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.08.019"}, {"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.2007.08.019", "name": "item", "description": "10.1016/j.soilbio.2007.08.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.08.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-02-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.08.023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:39Z", "type": "Journal Article", "created": "2007-11-06", "title": "Direct And Indirect Effects Of Nitrogen Deposition On Litter Decomposition", "description": "Elevated nitrogen (N) deposition can affect litter decomposition directly, by raising soil N availability and the quantity and quality of litter inputs, and indirectly by altering plant community composition. We investigated the importance of these controls on litter decomposition using litter bags placed in annual herb based microcosm ecosystems that had been subject to two rates of N deposition (which raised soil inorganic N availability and stimulated litter inputs) and two planting regimes, namely the plant species compositions of low and high N deposition environments. In each microcosm, we harvested litter bags of 10 annual plant species, over an 8-week period, to determine mass loss from decomposition. Our data showed that species differed greatly in their decomposability, but that these differences were unlikely to affect decomposition at the ecosystem level because there was no correlation between a species\u2019 decomposability and its response to N deposition (measured as population seed production under high N, relative to low N, deposition). Litter mass loss was 2% greater in high N deposition microcosms. Using a comprehensive set of measurements of the microcosm soil environments, we found that the most statistically likely explanation for this effect was increased soil enzyme activity (cellobiosidase, \u03b2-glucosidase and \u03b2-xylosidase), which appears to have occurred in response to a combination of raised soil inorganic N availability and stimulated litter inputs. Our data indicate that direct effects of N deposition on litter input and soil N availability significantly affected decomposition but indirect effects did not. We argue that indirect effects of changes to plant species composition could be stronger in natural ecosystems, which often contain a greater diversity of plant functional types than those considered here.", "keywords": ["2. Zero hunger", "570", "Litter decomposition", "04 agricultural and veterinary sciences", "15. Life on land", "Nitrogen deposition", "630", "Plant species composition", "C:N ratio", "13. Climate action", "Decomposer community", "PLFA", "0401 agriculture", " forestry", " and fisheries", "Soil enzyme activities"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.08.023"}, {"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.2007.08.023", "name": "item", "description": "10.1016/j.soilbio.2007.08.023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.08.023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-03-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.07.016", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2007-08-22", "title": "The Influence Of Soluble Carbon And Fertilizer Nitrogen On Nitric Oxide And Nitrous Oxide Emissions From Two Contrasting Agricultural Soils", "description": "Contradictory effects of simultaneous available organic C and N sources on nitrous oxide (N2O), carbon dioxide (CO2) and nitric oxide (NO) fluxes are reported in the literature. In order to clarify this controversy, laboratory experiments were conduced on two different soils, a semiarid arable soil from Spain (soil I, pH=7.5, 0.8%C) and a grassland soil from Scotland (soil II, pH=5.5, 4.1%C). Soils were incubated at two different moisture contents, at a water filled pore space (WFPS) of 90% and 40%. Ammonium sulphate, added at rates equivalent to 200 and 50 kg N ha\u22121, stimulated N2O and NO emissions in both soils. Under wet conditions (90% WFPS), at high and low rates of N additions, cumulative N2O emissions increased by 250.7 and 8.1 ng N2O\u2013N g\u22121 in comparison to the control, respectively, in soil I and by 472.2 and 2.1 ng N2O\u2013N g\u22121, respectively, in soil II. NO emissions only significantly increased in soil I at the high N application rate with and without glucose addition and at both 40% and 90% WFPS. In both soils additions of glucose together with the high N application rate (200 kg N ha\u22121) reduced cumulative N2O and NO emissions by 94% and 55% in soil I, and by 46% and 66% in soil II, respectively. These differences can be explained by differences in soil properties, including pH, soil mineral N and total and dissolved organic carbon content. It is speculated that nitrifier denitrification was the main source of NO and N2O in the C-poor Spanish soil, and coupled nitrification\u2013denitrification in the C-rich Scottish soil.", "keywords": ["2. Zero hunger", "mitigation", "mineral N", "nitrous oxide", "nitric oxide", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "glucose", "soil moisture", "15. Life on land", "soil respiration", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.07.016"}, {"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.2007.07.016", "name": "item", "description": "10.1016/j.soilbio.2007.07.016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.07.016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-01-01T00:00:00Z"}}, {"id": "10.1016/j.still.2006.08.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:54Z", "type": "Journal Article", "created": "2006-09-28", "title": "Effect Of The Conversion Of Grassland To Spring Wheat Field On The Co2 Emission Characteristics In Inner Mongolia, China", "description": "Chinese grasslands have undergone great changes in land use in recent decades. Approximately 18.2% of the present arable land in China originated from the cultivation of grassland, but its impact on the carbon cycle has not been fully understood. This study wasconducted insitu for3yearstoassessthecomprehensive effects ofcultivationof temperatesteppe onsoilorganiccarbon(SOC) and soil respiration rates as well as ecosystem respiration. As compared with those in the Stipa baicalensis steppe, the SOC concentrations at depths of 0\u201010 and 10\u201020 cm in the spring wheat field were found to have decreased by 38.3 and 17.4% respectively from 29.5 and 21.9 g kg \ufffd 1 to 18.2 and 18.1 g kg \ufffd 1 after a cultivation period of 30 years. Accordingly, the total amounts of soil respiration through the growing season (from April to September) in 2002, 2003 and 2004 were 265.2, 282.2 and 237.4 g C m \ufffd 2 respectivelyinthespringwheatfield,whichwereslightly lowerthanthevaluesof342.2,412.0and312.1 g C m \ufffd 2 in the S. baicalensis steppe, while ecosystem respiration of 690.9, 991.2 and 569.6 g C m \ufffd 2 respectively in the spring wheat field were markedly higher than those of 447.0, 470.9 and 429.7 g C m \ufffd 2 in the steppe plot. Similar seasonal variations of ecosystem respiration and soil respiration existed in both sample sites. Respiration rates were higher and greater differences existed in both ecosystem respiration and soil respiration during the exuberant growth stage of plants (from mid-June to mid-August). However, in the slower-growth period of the growing season (before late May and after late August), the CO2 effluxes of the two sample sites were similar and remained at a relatively low level. The results also showed that ecosystem respiration and soil respiration were under similar environmental controls in both sample sites. Soil water content at a depth of 0\u201010 cm and soil temperatures at 5 and 10 cmwere themain factors affectingthevariations in ecosystemrespiration and soil respirationrates indroughty yearsof 2002and 2004 and in the rainy 2003, respectively. This study suggests that the conversion of the grassland to the spring wheat field has increased the carbon loss of the whole ecosystem due to the change of vegetation cover type and significantly reduced the carbon storage of surface soil. In addition, the tillage of grassland had different effects on ecosystem respiration and soil respiration. The effects were also dissimilar in different growthstages, which should be fully considered when assessing and predicting the effects of cultivation on the net CO2 balance of grassland ecosystems. # 2006 Elsevier B.V. All rights reserved.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Manfred Domroes, Jiyuan Liu, Yunshe Dong, Yunshe Dong, Xing-Ren Liu, Yuanbo Geng, Yuchun Qi, Li-xin Liu, Xiao-hong Yang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.still.2006.08.008"}, {"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.2006.08.008", "name": "item", "description": "10.1016/j.still.2006.08.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2006.08.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-06-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Climat&offset=2450&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Climat&offset=2450&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "prev", "title": "items (prev)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Climat&offset=2400", "hreflang": "en-US"}, {"rel": "next", "type": "application/geo+json", "title": "items (next)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Climat&offset=2500", "hreflang": "en-US"}], "numberMatched": 8066, "numberReturned": 50, "distributedFeatures": [], "timeStamp": "2026-04-04T15:32:45.700238Z"}