Warming in the Arctic accelerates thawing of permafrost-affected soils, which leads to a release of greenhouse gases to the atmosphere. We do not know whether permafrost thaw also releases non-methane volatile organic compounds that can contribute to both negative and positive radiative forcing on climate. Here we show using proton transfer reaction\uffe2\uff80\uff93time of flight\uffe2\uff80\uff93mass spectrometry that substantial amounts of ethanol and methanol and in total 316 organic ions were released from Greenlandic permafrost soils upon thaw in laboratory incubations. We demonstrate that the majority of this release is taken up in the active layer above. In an experiment using 14C-labeled ethanol and methanol, we demonstrate that these compounds are consumed by microorganisms. Our findings highlight that the thawing permafrost soils are not only a considerable source of volatile organic compounds but also that the active layer regulates their release into the atmosphere.
", "keywords": ["0301 basic medicine", "Ethanol", "Science", "Climate", "Methanol", "General Biochemistry", "Genetics and Molecular Biology", "Q", "General Physics and Astronomy", "Permafrost", "General Chemistry", "15. Life on land", "01 natural sciences", "Article", "03 medical and health sciences", "13. Climate action", "11. Sustainability", "SDG 13 - Climate Action", "Soil Microbiology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://www.nature.com/articles/s41467-018-05824-y.pdf"}, {"href": "https://doi.org/10.1038/s41467-018-05824-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Communications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41467-018-05824-y", "name": "item", "description": "10.1038/s41467-018-05824-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41467-018-05824-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-08-24T00:00:00Z"}}, {"id": "10.1038/s41467-019-12976-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:38Z", "type": "Journal Article", "created": "2019-11-01", "title": "Seasonal dynamics of stem N2O exchange follow the physiological activity of boreal trees", "description": "AbstractThe role of trees in the nitrous oxide (N2O) balance of boreal forests has been neglected despite evidence suggesting their substantial contribution. We measured seasonal changes in N2O fluxes from soil and stems of boreal trees in Finland, showing clear seasonality in stem N2O flux following tree physiological activity, particularly processes of CO2 uptake and release. Stem N2O emissions peak during\uffc2\uffa0the vegetation season, decrease rapidly in October, and remain low but significant to the annual totals during winter dormancy. Trees growing on dry soils even turn to consumption of\uffc2\uffa0N2O from the atmosphere during dormancy, thereby reducing their overall N2O emissions. At an\uffc2\uffa0annual scale, pine, spruce and birch are net N2O sources, with spruce being the strongest emitter. Boreal trees thus markedly contribute to the seasonal dynamics of ecosystem N2O exchange, and their species-specific contribution should be included into forest emission inventories.
", "keywords": ["EDDY COVARIANCE", "Science", "Nitrous Oxide", "NITROUS-OXIDE EMISSIONS", "Article", "CO2 EXCHANGE", "Trees", "CARBON-DIOXIDE", "Soil", "METHANE", "Taiga", "CH4 EMISSIONS", "SCOTS PINE", "Ecosystem", "Finland", "Plant Stems", "Atmosphere", "Q", "Forestry", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "FOREST", "Environmental sciences", "SOIL", "PLANT-GROWTH", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Seasons", "Methane"]}, "links": [{"href": "https://www.nature.com/articles/s41467-019-12976-y.pdf"}, {"href": "https://doi.org/10.1038/s41467-019-12976-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Communications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41467-019-12976-y", "name": "item", "description": "10.1038/s41467-019-12976-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41467-019-12976-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-11-01T00:00:00Z"}}, {"id": "10.1038/srep37402", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:47Z", "type": "Journal Article", "created": "2016-11-21", "title": "Mitigating Effects Of Ex Situ Application Of Rice Straw On Ch4 And N2o Emissions From Paddy-Upland Coexisting System", "description": "AbstractThe in situ application of rice straw enhances CH4 emissions by a large margin. The ex situ application of rice straw in uplands, however, may mitigate total global warming potential (GWP) of CH4 and N2O emissions from paddy-upland coexisting systems. To evaluate the efficiency of this practice, two field trials were conducted in rice-rice-fallow and maize-rape cropping systems, respectively. Year-round measurements of CH4 and N2O emissions were conducted to evaluate the system-scaled GWP. The results showed that CH4 accounted for more than 98% of GWP in paddy. Straw removal from paddy decreased 44.7% (302.1\uffe2\uff80\uff89kg ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921) of CH4 emissions and 51.2% (0.31\uffe2\uff80\uff89kg ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921) of N2O emissions, thus decreased 44.8% (7693\uffe2\uff80\uff89kg CO2-eqv ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921) of annual GWP. N2O accounted for almost 100% of GWP in upland. Straw application in upland had insignificant effects on CH4 and N2O emissions, which increased GWP only by 91\uffe2\uff80\uff89kg CO2-eqv ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921. So, the transfer of straw from paddy to upland could decrease GWP by 7602\uffe2\uff80\uff89kg CO2-eqv ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921. Moreover, straw retention during late rice season contributed to 88.2% of annual GWP increment. It is recommended to transfer early rice straw to upland considering GWP mitigation, nutrient recycling and labor cost.
", "keywords": ["Waste Products", "2. Zero hunger", "Rain", "Nitrous Oxide", "Temperature", "Agriculture", "Oryza", "04 agricultural and veterinary sciences", "15. Life on land", "Global Warming", "Article", "6. Clean water", "Soil", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Methane"], "contacts": [{"organization": "Xiaohong Wu, Xiaoli Xie, Wei Wang, Anlei Chen, Chunmei Yin, Yunqiu Wang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1038/srep37402"}, {"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/srep37402", "name": "item", "description": "10.1038/srep37402", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/srep37402"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-11-21T00:00:00Z"}}, {"id": "10.1039/c8em00278a", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:48Z", "type": "Journal Article", "created": "2018-08-24", "title": "Impact of soil properties on the soil methane flux response to biochar addition: a meta-analysis", "description": "In an effort to optimize soil management practices that can help mitigate terrestrial carbon emissions, biochar has been applied to a wide range of soil environments to examine its effect on soil greenhouse gas emissions.
", "keywords": ["2. Zero hunger", "550", "04 agricultural and veterinary sciences", "15. Life on land", "Carbon", "Climate Action", "Soil", "13. Climate action", "Charcoal", "Soil Sciences", "11. Sustainability", "0401 agriculture", " forestry", " and fisheries", "Methane", "Environmental Sciences"]}, "links": [{"href": "https://escholarship.org/content/qt5rg779t5/qt5rg779t5.pdf"}, {"href": "https://doi.org/10.1039/c8em00278a"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%3A%20Processes%20%26amp%3B%20Impacts", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1039/c8em00278a", "name": "item", "description": "10.1039/c8em00278a", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1039/c8em00278a"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-01T00:00:00Z"}}, {"id": "10.1073/pnas.1809276115", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:10Z", "type": "Journal Article", "created": "2018-09-10", "title": "High Nitrous Oxide Fluxes From Rice Indicate The Need To Manage Water For Both Long- And Short-Term Climate Impacts", "description": "SignificanceMethane from global rice cultivation currently accounts for one-half of all crop-related greenhouse gas emissions. Several international organizations are advocating reductions in methane emissions from rice by promoting intermittent flooding without accounting for the possibility of large emissions of nitrous oxide (N 2 O), a long-lived greenhouse gas. Our experimental results suggest that the Indian subcontinent\uffe2\uff80\uff99s N 2 O emissions from intermittently flooded rice fields could be 30\uffe2\uff80\uff9345 times higher than reported under continuous flooding. Net climate impacts of rice cultivation could be reduced by up to 90% through comanagement of water, nitrogen, and carbon. To do this effectively will require a careful ongoing global assessment of N 2 O emissions from rice, or we will risk ignoring a very large source of climate impact.
", "keywords": ["2. Zero hunger", "Nitrous oxide", "550", "Climate Change", "Nitrous Oxide", "Water", "India", "Oryza", "04 agricultural and veterinary sciences", "Biological Sciences", "15. Life on land", "630", "Crop Production", "6. Clean water", "12. Responsible consumption", "Greenhouse Gases", "Alternate wetting and drying", "Water Supply", "13. Climate action", "11. Sustainability", "0401 agriculture", " forestry", " and fisheries", "Rice", "Methane"]}, "links": [{"href": "https://doi.org/10.1073/pnas.1809276115"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Proceedings%20of%20the%20National%20Academy%20of%20Sciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1073/pnas.1809276115", "name": "item", "description": "10.1073/pnas.1809276115", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1073/pnas.1809276115"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-09-10T00:00:00Z"}}, {"id": "10.1073/pnas.2308516120", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:10Z", "type": "Journal Article", "created": "2023-12-21", "title": "Radiation and temperature drive diurnal variation of aerobic methane emissions from Scots pine canopy", "description": "Methane emissions from plant foliage may play an important role in the global methane cycle, but their size and the underlying source processes remain poorly understood. Here, we quantify methane fluxes from the shoots of Scots pine trees, a dominant tree species in boreal forests, to identify source processes and environmental drivers, and we evaluate whether these fluxes can be constrained at the ecosystem-level by eddy covariance flux measurements. We show that shoot-level measurements conducted in forest, garden, or greenhouse settings; on mature trees and saplings; manually and with an automated CO 2 -, temperature-, and water-controlled chamber system; and with multiple methane analyzers all resulted in comparable daytime fluxes (0.144 \uffc2\uffb1 0.019 to 0.375 \uffc2\uffb1 0.074 nmol CH 4 g \uffe2\uff88\uff921 foliar d.w. h \uffe2\uff88\uff921 ). We further find that these emissions exhibit a pronounced diurnal cycle that closely follows photosynthetically active radiation and is further modulated by temperature. These diurnal patterns indicate that methane production is associated with diurnal cycle of sunlight, indicating that this production is either a byproduct of photosynthesis-associated biochemical reactions (e.g., the methionine cycle) or produced through nonenzymatic photochemical reactions in plant biomass. Moreover, we identified a light-dependent component in stand-level methane fluxes, which showed order-of-magnitude agreement with shoot-level measurements (0.968 \uffc2\uffb1 0.031 nmol CH 4 g \uffe2\uff88\uff921 h \uffe2\uff88\uff921 ) and which provides an upper limit for shoot methane emissions. 1. The daily methane production of sheep given sugar-beet pulp was greater than that of sheep given hay. The rates of methane production on both diets increased during feeding and then decreased to an apparently steady value. When no food was given the rates of methane production continued to fall exponentially with a half-life of about 24 h.
2. Mixtures of unsaturated long-chain fatty acids infused into the rumen during feeding inhibited the production of methane. The inhibition was greater when the sheep were given hay than when they were given sugar-beet pulp.
3. In general the concentration of soluble carbohydrates in the rumen increased during feeding and fell rapidly to the values found before feeding as soon as the sheep finished eating. The infusion of unsaturated fatty acids during feeding did not result in an accumulation of soluble carbohydrate in the rumen.
4. It is suggested that the rapid methane production during feeding was associated with fermentation of the more soluble part of the diet and that the fermentation of carbohydrate was not inhibited by the infused fatty acids. The results are consistent with specific inhibition of methanogenesis by unsaturated fatty acids.
", "keywords": ["2. Zero hunger", "Linseed Oil", "Rumen", "Sheep", "Time Factors", "Linoleic Acids", "Depression", " Chemical", "Fatty Acids", "Carbohydrates", "Dietary Carbohydrates", "Animals", "Methane"], "contacts": [{"organization": "J. L. Clapperton, J. W. Czerkawski,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1079/bjn19690092"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/British%20Journal%20of%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1079/bjn19690092", "name": "item", "description": "10.1079/bjn19690092", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1079/bjn19690092"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1969-11-01T00:00:00Z"}}, {"id": "10.1079/bjn19660035", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:11Z", "type": "Journal Article", "created": "2005-09-17", "title": "The Metabolism Of Oleic, Linoleic And Linolenic Acids By Sheep With Reference To Their Effects On Methane Production", "description": "1. Nine experiments, each with one of six sheep with cannulated rumens given a constant diet of dried grass, were made in which oleic, linoleic or linolenic acid was infused into the rumen and energy and lipid metabolism were measured. One experiment was made in which palmitic acid was given. 2. Judged by changes in the composition of isolated fatty acids, the unsaturated fatty acids were hydrogenated in the rumen. An increase in the excretion of lipid in the faeces occurred when the unsaturated acids were given. The heat of combustion of the faeces increased by 12.6\uffc2\uffb13.0 kcal/100 kcal fatty acid, of which 94% was accounted for by the additional lipid. 3. Methane production fell when the unsaturated fatty acids were infused, the decreases being 13.8\uffc2\uffb11.6 kcal CH4;/I00 kcal oleic acid, 14.2\uffc2\uffb11.5 kcal CH4/100 kcal linoIeic acid and 16.4\uffc2\uffb11.3 kcal CH4/100 kcal Iinolenic acid. The introduction of a double bond into an n-alkyl acid was calculated to reduce methane production by 0.24\uffc2\uffb10.09 moles/mole double bond. 4. Because the depression of methane production on infusing the fatty acids exceeded the increase in the heat of combustion of the faeces, the metabolizable energy of the fatty acids was 104.1\uffc2\uffb15.3% of their heat of combustion. 5. The efficiencies with which the fatty acids were used to promote energy retention were 74.6\uffc2\uffb15.7% for oleic acid, 79.2\uffc2\uffb12.0 % for linoleic acid and 82.5\uffc2\uffb13.0% for linolenic acid. These efficiencies agreed with those noted in experiments by others with rats, horses and pigs given glycerides, but were higher than those noted by others when glycerides were added to the diets of ruminants.
", "keywords": ["2. Zero hunger", "Sheep", "Fatty Acids", " Essential", "Linoleic Acids", "Animals", "Oleic Acids", "Methane"], "contacts": [{"organization": "K. L. Blaxter, F. W. Wainman, J. W. Czerkawski,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1079/bjn19660035"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/British%20Journal%20of%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1079/bjn19660035", "name": "item", "description": "10.1079/bjn19660035", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1079/bjn19660035"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1966-05-01T00:00:00Z"}}, {"id": "10.1079/bjn19710051", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:11Z", "type": "Journal Article", "created": "2005-05-24", "title": "The Effect Of Tertiary Branched-Chain Carboxylic Acids On The Energy Metabolism Of Sheep", "description": "1. The introduction of certain tertiary branched-chain carboxylic acids into the rumen of sheep, either by continuous infusion or by direct incorporation of the acids in the concentrate food mixture, had no effect on the oxygen consumption or carbon dioxide production of the sheep. Methane production was depressed, the extent of the depression increasing with the molecular weight of the carboxylic acid.
2. There was a small decrease in the apparent digestibility of the food and a small increase in urinary energy output.
3. There was no significant increase in the metabolizable energy intake of the sheep. There was, however, a small increase in the amount of energy stored in the body. This small increase was about 84 % of the gross energy of the branched-chain acids added.
4. It is concluded that any practical advantage to be gained from the addition of branched-chain carboxylic acids to the diet of ruminants remains unproven.
", "keywords": ["2. Zero hunger", "Sheep", "Fatty Acids", "Carboxylic Acids", "0402 animal and dairy science", "04 agricultural and veterinary sciences", "Carbon Dioxide", "Urine", "Molecular Weight", "Feces", "Oxygen Consumption", "Animals", "Animal Nutritional Physiological Phenomena", "Methane", "Stearic Acids"], "contacts": [{"organization": "J. L. Clapperton, J. W. Czerkawski,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1079/bjn19710051"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/British%20Journal%20of%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1079/bjn19710051", "name": "item", "description": "10.1079/bjn19710051", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1079/bjn19710051"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1971-11-01T00:00:00Z"}}, {"id": "10.1079/bjn2003932", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:11Z", "type": "Journal Article", "created": "2003-09-20", "title": "Methane-Suppressing Effect Of Myristic Acid In Sheep As Affected By Dietary Calcium And Forage Proportion", "description": "The efficiency of myristic acid (14:0) as a feed additive to suppress CH4emissions of ruminants was evaluated under different dietary conditions. Six sheep were subjected to a 6 \uffc3\uff97 6 Latin square arrangement. A supplement of non-esterified 14: 0 (50 g/kg DM) was added to two basal diets differing in their forage:concentrate values (1:1/5 and 1: 0/5), which were adjusted to dietary Ca contents of 4/2 and 9/0 g/ kg DM, respectively. Comparisons were made with the unsupplemented basal diets (4/2 g Ca/kg DM). The 14:0 supplementation decreased (P< 0/001) total tract CH4release depending on basal diet type (interaction,P< 0/001) and dietary Ca level (P< 0/05,post hoctest). In the concentrate-based diet, 14:0 suppressed CH4emission by 58 and 47% with 4/2 and 9/0 g Ca/kg DM, respectively. The 14:0 effect was lower (22%) in the forage-based diet and became insignificant with additional Ca. Myristic acid inhibited (P< 0/05) rumen archaea without significantly altering proportions of individual methanogen orders. Ciliate protozoa concentration was decreased (P< 0/05,post hoctest) by 14:0 only in combination with 9/0 g Ca/kg DM. Rumen fluid NH3concentration and acetate:pro-pionate were decreased (P< 0/05) and water consumption was lower (P< 0/01) with 14:0. The use of 14:0 had no clear effects on total tract organic matter and fibre digestion; this further illustrates that the suppressed methanogenesis resulted from direct effects against methanogens. The present study demonstrated that 14:0 is a potent CH4inhibitor but, to be effective in CH4mitigation feeding strategies, interactions with other diet ingredients have to be considered.
", "keywords": ["Male", "2. Zero hunger", "Rumen", "Sheep", "Forage", "0402 animal and dairy science", "Water", "Calorimetry", " Indirect", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "Animal Feed", "Myristic Acid", "Depression", " Chemical", "Dietary Supplements", "Animals", "Animal Nutritional Physiological Phenomena", "Calcium", "Methane; Myristic acid; Forage; Calcium", "Myristic acid", "Methane"], "contacts": [{"organization": "Andrea, Machm\u00fcller, Andrea, Machm\u00fcller, Carla R, Soliva, Michael, Kreuzer,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1079/bjn2003932"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/British%20Journal%20of%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1079/bjn2003932", "name": "item", "description": "10.1079/bjn2003932", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1079/bjn2003932"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-09-01T00:00:00Z"}}, {"id": "10.1079/bjn19780043", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:11Z", "type": "Journal Article", "created": "2005-05-19", "title": "Methane Production In Rumen And Lower Gut Of Sheep Given Lucerne Chaff - Effect Of Level Of Intake", "description": "1. Methane production rates were estimated simultaneously in the rumen and caecum of sheep given 200, 400, 600, 800 and 1000 g lucerne (Medicago sativa) chaff/d using isotope dilution techniques. Estimates were also made of volatile fatty acid (VFA) production in the rumen at each level of feeding. In all studies three to four animals were used at each level of intake.
2. Production of VFA and of methane were both related to digestible energy (de) intake. Regression lines for both VFA production and methane productionv.deintake had significant intercepts indicating an input of endogenous, fermentable organic matter into the rumen in excess of 50 g/d.
3. The values obtained for rates of methane production were compared with those calculated from stoicheiometric equations relating rates of methane and VFA production. Comparisons of methane production with that predicted fromdeintake were also made.
4. Balances for digestion of food determined for the rumen indicated that the energies in the end-products were more than 100% of thedeintakes at low intakes of lucerne chaff. Correction for fermentation of apparent endogenous materials resulted in more realistic values. Endogenous materials appeared to make a significant contribution to VFA and methane production, particularly at low levels of intake.
", "keywords": ["2. Zero hunger", "Rumen", "Sheep", "Fermentation", "0402 animal and dairy science", "Animals", "Female", "04 agricultural and veterinary sciences", "Fatty Acids", " Volatile", "Methane", "Diet", "Medicago sativa"], "contacts": [{"organization": "A. M. Bryant, R. M. Murray, Ronald Leng,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1079/bjn19780043"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/British%20Journal%20of%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1079/bjn19780043", "name": "item", "description": "10.1079/bjn19780043", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1079/bjn19780043"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1978-03-01T00:00:00Z"}}, {"id": "10.1079/bjn20051517", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:11Z", "type": "Journal Article", "created": "2005-11-03", "title": "Effect Of Ruminal Administration Of Escherichia Coli Wild Type Or A Genetically Modified Strain With Enhanced High Nitrite Reductase Activity On Methane Emission And Nitrate Toxicity In Nitrate-Infused Sheep", "description": "The effects of two kinds ofEscherichia coli(E. coli) strain, wild-typeE. coliW3110 andE. colinir-Ptac, which has enhanced NO2reduction activity, on oral CH4emission and NO3toxicity in NO3-treated sheep were assessed in a respiratory hood system in a 4\uffc3\uff976 Youden square design. NO3(1\uffc2\uffb73g NaNO3/kg0\uffc2\uffb775body weight) and/orE. colistrains were delivered into the rumen through a fistula as a single dose 30min after the morning meal.Escherichia colicells were inoculated for sheep to provide an initialE. colicell density of optical density at 660nm of 2, which corresponded to 2\uffc3\uff971010cells/ml. The six treatments consisted of saline,E. coliW3110,E. colinir-Ptac, NO3, NO3plusE. coliW3110, and NO3plusE. colinir-Ptac. CH4emission from sheep was reduced by the inoculation ofE. coliW3110 orE. colinir-Ptac by 6% and 12%, respectively. NO3markedly inhibited CH4emission from sheep. Compared with sheep given NO3alone, the inoculation ofE. coliW3110 to NO3-infused sheep lessened ruminal and plasma toxic NO2accumulation and blood methaemoglobin production, while keeping ruminal methanogenesis low. Ruminal and plasma toxic NO2accumulation and blood methaemoglobin production in sheep were unaffected by the inoculation ofE. colinir-Ptac. These results suggest that ruminal methanogenesis may be reduced by the inoculation ofE. coliW3110 orE. colinir-Ptac. The inoculation ofE. coliW3110 may abate NO3toxicity when NO3is used to inhibit CH4emission from ruminants.
", "keywords": ["Male", "2. Zero hunger", "Nitrates", "Rumen", "Sheep", "Metabolic Clearance Rate", "0402 animal and dairy science", "04 agricultural and veterinary sciences", "Carbon Dioxide", "Nitrate Reductase", "3. Good health", "Oxygen Consumption", "Fermentation", "Escherichia coli", "Animals", "Infusions", " Parenteral", "Methane", "Methemoglobin", "Nitrites"], "contacts": [{"organization": "Junichi Takahashi, I. Shinzato, Y. Asakura, C. Sar, B. Pen, R. Morikawa, B. Mwenya, A. Tsujimoto, K. Kuwaki, K. Takaura, N. Isogai, Yasuhiko Toride,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1079/bjn20051517"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/British%20Journal%20of%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1079/bjn20051517", "name": "item", "description": "10.1079/bjn20051517", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1079/bjn20051517"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-11-01T00:00:00Z"}}, {"id": "10.1111/gcb.70071", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:59Z", "type": "Journal Article", "created": "2025-02-14", "title": "Greenhouse Gas Emissions and Lateral Carbon Dynamics at an Eroding Yedoma Permafrost Site in Siberia (Duvanny Yar)", "description": "ABSTRACTRapid Arctic warming is accelerating permafrost thaw and mobilizing previously frozen organic carbon (OC) into waterways. Upon thaw, permafrost\uffe2\uff80\uff90derived OC can become susceptible to microbial degradation that may lead to greenhouse gas emissions (GHG), thus accelerating climate change. Abrupt permafrost thaw (e.g., riverbank erosion, retrogressive thaw slumps) occurs in areas rich in OC. Given the high OC content and the increase in frequency of abrupt thaw events, these environments may increasingly contribute to permafrost GHG emissions in the future. To better assess these emissions from abrupt permafrost thaw, we incubated thaw stream waters from an abrupt permafrost thaw site (Duvanny Yar, Siberia) and additionally, waters from their outflow to the Kolyma River. Our results show that CO2 release by volume from thaw streams was substantially higher than CO2 emissions from the river outflow waters, while the opposite was true for CO2 release normalized to the suspended sediment weight (gram dry weight). The CH4 emissions from both thaw streams and outflow waters were at a similar range, but an order of magnitude lower than those of CO2. Additionally, we show that nearshore riverbank waters differ in their biogeochemistry from thaw streams and Kolyma River mainstem: particles resemble thaw streams while dissolved fraction is more alike to the Kolyma River thalweg. In these waters dissolved OC losses are faster than in the river thalweg. Our incubations offer a first insight into the GHG release from permafrost thaw streams that connect exposed and degrading permafrost outcrops to larger river systems.Over the last 50\uffc2\uffa0years, the most increase in cultivated land area globally has been due to a doubling of irrigated land. Long\uffe2\uff80\uff90term agronomic management impacts on soil organic carbon (SOC) stocks, soil greenhouse gas (GHG) emissions, and global warming potential (GWP) in irrigated systems, however, remain relatively unknown. Here, residue and tillage management effects were quantified by measuring soil nitrous oxide (N2O) and methane (CH4) fluxes and SOC changes (\uffce\uff94SOC) at a long\uffe2\uff80\uff90term, irrigated continuous corn (Zea mays L.) system in eastern Nebraska, United States. Management treatments began in 2002, and measured treatments included no or high stover removal (0 or 6.8\uffc2\uffa0Mg\uffc2\uffa0DM\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921, respectively) under no\uffe2\uff80\uff90till (NT) or conventional disk tillage (CT) with full irrigation (n\uffc2\uffa0=\uffc2\uffa04). Soil N2O and CH4 fluxes were measured for five crop\uffe2\uff80\uff90years (2011\uffe2\uff80\uff932015), and \uffce\uff94SOC was determined on an equivalent mass basis to ~30\uffc2\uffa0cm soil depth. Both area\uffe2\uff80\uff90 and yield\uffe2\uff80\uff90scaled soil N2O emissions were greater with stover retention compared to removal and for CT compared to NT, with no interaction between stover and tillage practices. Methane comprised <1% of total emissions, with NT being CH4 neutral and CT a CH4 source. Surface SOC decreased with stover removal and with CT after 14\uffc2\uffa0years of management. When \uffce\uff94SOC, soil GHG emissions, and agronomic energy usage were used to calculate system GWP, all management systems were net GHG sources. Conservation practices (NT, stover retention) each decreased system GWP compared to conventional practices (CT, stover removal), but pairing conservation practices conferred no additional mitigation benefit. Although cropping system, management equipment/timing/history, soil type, location, weather, and the depth to which \uffce\uff94SOC is measured affect the GWP outcomes of irrigated systems at large, this long\uffe2\uff80\uff90term irrigated study provides valuable empirical evidence of how management decisions can impact soil GHG emissions and surface SOC stocks.
", "keywords": ["Crops", " Agricultural", "Greenhouse Effect", "2. Zero hunger", "no-till", "Agricultural Irrigation", "nitrous oxide", "550", "methane", "Nitrous Oxide", "conventional tillage", "Agriculture", "04 agricultural and veterinary sciences", "15. Life on land", "Global Warming", "Zea mays", "7. Clean energy", "630", "6. Clean water", "soil organic carbon", "Soil", "greenhouse gas intensity", "13. Climate action", "global warming potential", "0401 agriculture", " forestry", " and fisheries", "stover removal"]}, "links": [{"href": "https://doi.org/10.1111/gcb.13637"}, {"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.13637", "name": "item", "description": "10.1111/gcb.13637", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.13637"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-02-28T00:00:00Z"}}, {"id": "10.1088/1748-9326/ab2108", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:28Z", "type": "Journal Article", "created": "2019-05-10", "title": "Do alternative irrigation strategies for rice cultivation decrease water footprints at the cost of long-term soil health?", "description": "AbstractThe availability of water is a growing concern for flooded rice production. As such, several water-saving irrigation practices have been developed to reduce water requirements. Alternate wetting and drying and mid-season drainage have been shown to potentially reduce water requirements while maintaining rice yields when compared to continuous flooding. With the removal of permanently anaerobic conditions during the growing season, water-saving irrigation can also reduce CO2 equivalent (CO2eq) emissions, helping reduce the impact of greenhouse gas (GHG) emissions. However, the long-term impact of water-saving irrigation on soil organic carbon (SOC)\uffe2\uff80\uff94used here as an indicator of soil health and fertility\uffe2\uff80\uff94has not been explored. We therefore conducted a meta-analysis to assess the effects of common water-saving irrigation practices (alternate wetting and drying and mid-season drainage) on (i) SOC, and (ii) GHG emissions. Despite an extensive literature search, only 12 studies were found containing data to constrain the soil C balance in both continuous flooding and water-saving irrigation plots, highlighting the still limited understanding of long-term impacts of water-saving irrigation on soil health and GHG emissions. Water-saving irrigation was found to reduce emissions of CH4 by 52.3% and increased those of CO2 by 44.8%. CO2eq emissions were thereby reduced by 18.6% but the soil-to-atmosphere carbon (C) flux increased by 25% when compared to continuous flooding. Water-saving irrigation was also found to have a negative effect on both SOC\uffe2\uff80\uff94reducing concentrations by 5.2%\uffe2\uff80\uff94and soil organic nitrogen\uffe2\uff80\uff94potentially depleting stocks by more than 100 kg N/ha per year. While negative effects of water-saving irrigation on rice yield may not be visible in short-term experiments, care should be taken when assessing the long-term sustainability of these irrigation practices because they can decrease soil fertility. Strategies need to be developed for assessing the more long-term effects of these irrigation practices by considering trade-offs between water savings and other ecosystem services.
", "keywords": ["2. Zero hunger", "rice", "methane", "Science", "Physics", "QC1-999", "Q", "carbon dioxide", "04 agricultural and veterinary sciences", "15. Life on land", "Environmental technology. Sanitary engineering", "01 natural sciences", "6. Clean water", "12. Responsible consumption", "soil organic carbon", "Environmental sciences", "mid-season drainage", "alternate wetting and drying", "13. Climate action", "11. Sustainability", "0401 agriculture", " forestry", " and fisheries", "GE1-350", "TD1-1066", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1088/1748-9326/ab2108"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1748-9326/ab2108", "name": "item", "description": "10.1088/1748-9326/ab2108", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1748-9326/ab2108"}, {"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": "10.1093/femsec/fiad145", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:30Z", "type": "Journal Article", "created": "2023-11-09", "title": "Vegetation type, not the legacy of warming, modifies the response of microbial functional genes and greenhouse gas fluxes to drought in Oro-Arctic and alpine regions", "description": "AbstractClimate warming and summer droughts alter soil microbial activity, affecting greenhouse gas (GHG) emissions in Arctic and alpine regions. However, the long-term effects of warming, and implications for future microbial resilience, are poorly understood. Using one alpine and three Arctic soils subjected to in situ long-term experimental warming, we simulated drought in laboratory incubations to test how microbial functional-gene abundance affects fluxes in three GHGs: carbon dioxide, methane, and nitrous oxide. We found that responses of functional gene abundances to drought and warming are strongly associated with vegetation type and soil carbon. Our sites ranged from a wet, forb dominated, soil carbon-rich systems to a drier, soil carbon-poor alpine site. Resilience of functional gene abundances, and in turn methane and carbon dioxide fluxes, was lower in the wetter, carbon-rich systems. However, we did not detect an effect of drought or warming on nitrous oxide fluxes. All gene\uffe2\uff80\uff93GHG relationships were modified by vegetation type, with stronger effects being observed in wetter, forb-rich soils. These results suggest that impacts of warming and drought on GHG emissions are linked to a complex set of microbial gene abundances and may be habitat-specific.Residual expressions of enteric emissions favor a more equitable identification of an animal\uffe2\uff80\uff99s methanogenic potential compared with traditional measures of enteric emissions. The objective of this study was to investigate the effect of divergently ranking beef cattle for residual methane emissions (RME) on animal productivity, enteric emissions, and rumen fermentation. Dry matter intake (DMI), growth, feed efficiency, carcass output, and enteric emissions (GreenFeed emissions monitoring system) were recorded on 294 crossbred beef cattle (steers = 135 and heifers = 159; mean age 441 d (SD = 49); initial body weight (BW) of 476 kg (SD = 67)) at the Irish national beef cattle performance test center. Animals were offered a total mixed ration (77% concentrate and 23% forage; 12.6 MJ ME/kg of DM and 12% CP) ad libitum with emissions estimated for 21 d over a mean feed intake measurement period of 91 d. Animals had a mean daily methane emissions (DME) of 229.18 g/d (SD = 45.96), methane yield (MY) of 22.07 g/kg of DMI (SD = 4.06), methane intensity (MI) 0.70 g/kg of carcass weight (SD = 0.15), and RME 0.00 g/d (SD = 0.34). RME was computed as the residuals from a multiple regression model regressing DME on DMI and BW (R2 = 0.45). Animals were ranked into three groups namely high RME (>0.5 SD above the mean), medium RME (\uffc2\uffb10.5 SD above/below the mean), and low RME (>0.5 SD below the mean). Low RME animals produced 17.6% and 30.4% less (P < 0.05) DME compared with medium and high RME animals, respectively. A ~30% reduction in MY and MI was detected in low versus high RME animals. Positive correlations were apparent among all methane traits with RME most highly associated with (r = 0.86) DME. MY and MI were correlated (P < 0.05) with DMI, growth, feed efficiency, and carcass output. High RME had lower (P < 0.05) ruminal propionate compared with low RME animals and increased (P < 0.05) butyrate compared with medium and low RME animals. Propionate was negatively associated (P < 0.05) with all methane traits. Greater acetate:propionate ratio was associated with higher RME (r = 0.18; P < 0.05). Under the ad libitum feeding regime deployed here, RME was the best predictor of DME and only methane trait independent of animal productivity. Ranking animals on RME presents the opportunity to exploit interanimal variation in enteric emissions as well as providing a more equitable index of the methanogenic potential of an animal on which to investigate the underlying biological regulatory mechanisms.
", "keywords": ["2. Zero hunger", "Rumen", "0402 animal and dairy science", "Beef cattle", "04 agricultural and veterinary sciences", "Animal Feed", "Diet", "Eating", "13. Climate action", "residual methane emissions", "Fermentation", "Environmental Animal Science", "Animals", "Cattle", "Female", "Methane"]}, "links": [{"href": "https://academic.oup.com/jas/article-pdf/99/11/skab275/41139199/skab275.pdf"}, {"href": "https://doi.org/10.1093/jas/skab275"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Animal%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/jas/skab275", "name": "item", "description": "10.1093/jas/skab275", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/jas/skab275"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-10-01T00:00:00Z"}}, {"id": "10.1098/rsbl.2008.0373", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:38Z", "type": "Journal Article", "created": "2008-09-13", "title": "Methane Emissions By Alpine Plant Communities In The Qinghai-Tibet Plateau", "description": "For the first time to our knowledge, we report here methane emissions by plant communities in alpine ecosystems in the Qinghai\uffe2\uff80\uff93Tibet Plateau. This has been achieved through long-term field observations from June 2003 to July 2006 using a closed chamber technique. Strong methane emission at the rate of 26.2\uffc2\uffb11.2 and 7.8\uffc2\uffb11.1\uffe2\uff80\uff8a\uffce\uffbcg CH 4 m \uffe2\uff88\uff922 \uffe2\uff80\uff8ah \uffe2\uff88\uff921 was observed for a grass community in a Kobresia humilis meadow and a Potentilla fruticosa meadow, respectively. A shrub community in the Potentilla meadow consumed atmospheric methane at the rate of 5.8\uffc2\uffb11.3\uffe2\uff80\uff8a\uffce\uffbcg CH 4 m \uffe2\uff88\uff922 \uffe2\uff80\uff8ah \uffe2\uff88\uff921 on a regional basis; plants from alpine meadows contribute at least 0.13\uffe2\uff80\uff8aTg CH 4 yr \uffe2\uff88\uff921 in the Tibetan Plateau. This finding has important implications with regard to the regional methane budget and species-level difference should be considered when assessing methane emissions by plants.
", "keywords": ["13. Climate action", "Potentilla", "Cyperaceae", "Volatilization", "15. Life on land", "Tibet", "Methane", "01 natural sciences", "Ecosystem", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1098/rsbl.2008.0373"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biology%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1098/rsbl.2008.0373", "name": "item", "description": "10.1098/rsbl.2008.0373", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1098/rsbl.2008.0373"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-08-26T00:00:00Z"}}, {"id": "10.1111/1462-2920.16316", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:49Z", "type": "Journal Article", "created": "2023-01-04", "title": "The effect of methane and methanol on the terrestrial ammonia\u2010oxidizing archaeon \u2018Candidatus Nitrosocosmicus franklandus C13\u2019", "description": "AbstractThe ammonia monooxygenase (AMO) is a key enzyme in ammonia\uffe2\uff80\uff90oxidizing archaea, which are abundant and ubiquitous in soil environments. The AMO belongs to the copper\uffe2\uff80\uff90containing membrane monooxygenase (CuMMO) enzyme superfamily, which also contains particulate methane monooxygenase (pMMO). Enzymes in the CuMMO superfamily are promiscuous, which results in co\uffe2\uff80\uff90oxidation of alternative substrates. The phylogenetic and structural similarity between the pMMO and the archaeal AMO is well\uffe2\uff80\uff90established, but there is surprisingly little information on the influence of methane and methanol on the archaeal AMO and terrestrial nitrification. The aim of this study was to examine the effects of methane and methanol on the soil ammonia\uffe2\uff80\uff90oxidizing archaeon \uffe2\uff80\uff98Candidatus Nitrosocosmicus franklandus C13\uffe2\uff80\uff99. We demonstrate that both methane and methanol are competitive inhibitors of the archaeal AMO. The inhibition constants (Ki) for methane and methanol were 2.2 and 20\uffe2\uff80\uff89\uffce\uffbcM, respectively, concentrations which are environmentally relevant and orders of magnitude lower than those previously reported for ammonia\uffe2\uff80\uff90oxidizing bacteria. Furthermore, we demonstrate that a specific suite of proteins is upregulated and downregulated in \uffe2\uff80\uff98Ca. Nitrosocosmicus franklandus C13\uffe2\uff80\uff99 in the presence of methane or methanol, which provides a foundation for future studies into metabolism of one\uffe2\uff80\uff90carbon (C1) compounds in ammonia\uffe2\uff80\uff90oxidizing archaea.Co\uffe2\uff80\uff90oxidation of a range of alkenes, dienes, and aromatic compounds by whole cells of the isoprene\uffe2\uff80\uff90degrading bacterium Rhodococcus sp. AD45 expressing isoprene monooxygenase was investigated, revealing a relatively broad substrate specificity for this soluble diiron centre monooxygenase. A range of 1\uffe2\uff80\uff90alkynes (C2\uffe2\uff80\uff93C8) were tested as potential inhibitors. Acetylene, a potent inhibitor of the related enzyme soluble methane monooxygenase, had little inhibitory effect, whereas 1\uffe2\uff80\uff90octyne was a potent inhibitor of isoprene monooxygenase, indicating that 1\uffe2\uff80\uff90octyne could potentially be used as a specific inhibitor to differentiate between isoprene consumption by bona fide isoprene degraders and co\uffe2\uff80\uff90oxidation of isoprene by other oxygenase\uffe2\uff80\uff90containing bacteria, such as methanotrophs, in environmental samples. The isoprene oxidation kinetics of a variety of monooxygenase\uffe2\uff80\uff90expressing bacteria were also investigated, revealing that alkene monooxygenase from Xanthobacter and soluble methane monooxygenases from Methylococcus and Methylocella, but not particulate methane monooxygenases from Methylococcus or Methylomicrobium, could co\uffe2\uff80\uff90oxidise isoprene at appreciable rates. Interestingly the ammonia monooxygenase from the nitrifier Nitrosomonas europaea could also co\uffe2\uff80\uff90oxidise isoprene at relatively high rates, suggesting that co\uffe2\uff80\uff90oxidation of isoprene by additional groups of bacteria, under the right conditions, might occur in the environment.The net balance of greenhouse gas (GHG) exchanges between terrestrial ecosystems and the atmosphere under elevated atmospheric carbon dioxide (CO2) remains poorly understood. Here, we synthesise 1655 measurements from 169 published studies to assess GHGs budget of terrestrial ecosystems under elevated CO2. We show that elevated CO2 significantly stimulates plant C pool (NPP) by 20%, soil CO2 fluxes by 24%, and methane (CH4) fluxes by 34% from rice paddies and by 12% from natural wetlands, while it slightly decreases CH4 uptake of upland soils by 3.8%. Elevated CO2 causes insignificant increases in soil nitrous oxide (N2O) fluxes (4.6%), soil organic C (4.3%) and N (3.6%) pools. The elevated CO2\uffe2\uff80\uff90induced increase in GHG emissions may decline with CO2 enrichment levels. An elevated CO2\uffe2\uff80\uff90induced rise in soil CH4 and N2O emissions (2.76 Pg CO2\uffe2\uff80\uff90equivalent year\uffe2\uff88\uff921) could negate soil C enrichment (2.42 Pg CO2 year\uffe2\uff88\uff921) or reduce mitigation potential of terrestrial net ecosystem production by as much as 69% (NEP, 3.99 Pg CO2 year\uffe2\uff88\uff921) under elevated CO2. Our analysis highlights that the capacity of terrestrial ecosystems to act as a sink to slow climate warming under elevated CO2 might have been largely offset by its induced increases in soil GHGs source strength.
", "keywords": ["0106 biological sciences", "Greenhouse Effect", "0301 basic medicine", "Nitrous Oxide", "Carbon Dioxide", "15. Life on land", "01 natural sciences", "6. Clean water", "Greenhouse Gases", "Soil", "03 medical and health sciences", "13. Climate action", "Methane", "Ecosystem"]}, "links": [{"href": "https://doi.org/10.1111/ele.13078"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/ele.13078", "name": "item", "description": "10.1111/ele.13078", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/ele.13078"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-05-07T00:00:00Z"}}, {"id": "10.1111/gcb.12347", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:55Z", "type": "Journal Article", "created": "2013-08-08", "title": "Assessing The Performance Of The Photo-Acoustic Infrared Gas Monitor For Measuring Co2, N2o, And Ch4 Fluxes In Two Major Cereal Rotations", "description": "AbstractRapid, precise, and globally comparable methods for monitoring greenhouse gas (GHG) fluxes are required for accurate GHG inventories from different cropping systems and management practices. Manual gas sampling followed by gas chromatography (GC) is widely used for measuring GHG fluxes in agricultural fields, but is laborious and time\uffe2\uff80\uff90consuming. The photo\uffe2\uff80\uff90acoustic infrared gas monitoring system (PAS) with on\uffe2\uff80\uff90line gas sampling is an attractive option, although it has not been evaluated for measuring GHG fluxes in cereals in general and rice in particular. We compared N2O, CO2, and CH4 fluxes measured by GC and PAS from agricultural fields under the rice\uffe2\uff80\uff93wheat and maize\uffe2\uff80\uff93wheat systems during the wheat (winter), and maize/rice (monsoon) seasons in Haryana, India. All the PAS readings were corrected for baseline drifts over time and PAS\uffe2\uff80\uff90CH4 (PCH4) readings in flooded rice were corrected for water vapor interferences. The PCH4 readings in ambient air increased by 2.3\uffc2\uffa0ppm for every 1000\uffc2\uffa0mg\uffc2\uffa0cm\uffe2\uff88\uff923 increase in water vapor. The daily CO2, N2O, and CH4 fluxes measured by GC and PAS from the same chamber were not different in 93\uffe2\uff80\uff9398% of all the measurements made but the PAS exhibited greater precision for estimates of CO2 and N2O fluxes in wheat and maize, and lower precision for CH4 flux in rice, than GC. The seasonal GC\uffe2\uff80\uff90 and PAS\uffe2\uff80\uff90N2O (PN2O) fluxes in wheat and maize were not different but the PAS\uffe2\uff80\uff90CO2 (PCO2) flux in wheat was 14\uffe2\uff80\uff9339% higher than that of GC. In flooded rice, the seasonal PCH4 and PN2O fluxes across N levels were higher than those of GC\uffe2\uff80\uff90CH4 and GC\uffe2\uff80\uff90N2O fluxes by about 2\uffe2\uff80\uff90 and 4fold, respectively. The PAS (i) proved to be a suitable alternative to GC for N2O and CO2 flux measurements in wheat, and (ii) showed potential for obtaining accurate measurements of CH4 fluxes in flooded rice after making correction for changes in humidity.
", "keywords": ["Chromatography", " Gas", "Spectrophotometry", " Infrared", "Nitrous Oxide", "Zea mays", "01 natural sciences", "7. Clean energy", "greenhouse gases", "climate", "Triticum", "agriculture", "0105 earth and related environmental sciences", "cereals", "2. Zero hunger", "Air Pollutants", "nitrous oxide", "methane", "rice", "carbon dioxide", "Oryza", "Acoustics", "04 agricultural and veterinary sciences", "Carbon Dioxide", "monitoring", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Methane", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1111/gcb.12347"}, {"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.12347", "name": "item", "description": "10.1111/gcb.12347", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.12347"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-11T00:00:00Z"}}, {"id": "10.1111/gcb.12216", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:54Z", "type": "Journal Article", "created": "2013-04-04", "title": "Initial Nitrous Oxide, Carbon Dioxide, And Methane Costs Of Converting Conservation Reserve Program Grassland To Row Crops Under No-Till Vs. Conventional Tillage", "description": "AbstractAround 4.4 million\uffc2\uffa0ha of land in USDA Conservation Reserve Program (CRP) contracts will expire between 2013 and 2018 and some will likely return to crop production. No\uffe2\uff80\uff90till (NT) management offers the potential to reduce the global warming costs of CO2, CH4, and N2O emissions during CRP conversion, but to date there have been no CRP conversion tillage comparisons. In 2009, we converted portions of three 9\uffe2\uff80\uff9321\uffc2\uffa0ha CRP fields in Michigan to conventional tillage (CT) or NT soybean production and reserved a fourth field for reference. Both CO2 and N2O fluxes increased following herbicide application in all converted fields, but in the CT treatment substantial and immediate N2O and CO2 fluxes occurred after tillage. For the initial 201\uffe2\uff80\uff90day conversion period, average daily N2O fluxes (g N2O\uffe2\uff80\uff90N\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0d\uffe2\uff88\uff921) were significantly different in the order: CT (47.5\uffc2\uffa0\uffc2\uffb1\uffc2\uffa06.31, n\uffc2\uffa0=\uffc2\uffa06)\uffc2\uffa0\uffe2\uff89\uffab\uffc2\uffa0NT (16.7\uffc2\uffa0\uffc2\uffb1\uffc2\uffa02.45, n\uffc2\uffa0=\uffc2\uffa06)\uffc2\uffa0\uffe2\uff89\uffab\uffc2\uffa0reference (2.51\uffc2\uffa0\uffc2\uffb1\uffc2\uffa00.73, n\uffc2\uffa0=\uffc2\uffa04). Similarly, soil CO2 fluxes in CT were 1.2 times those in NT and 3.1 times those in the unconverted CRP reference field. All treatments were minor sinks for CH4 (\uffe2\uff88\uff920.69\uffc2\uffa0\uffc2\uffb1\uffc2\uffa00.42 to \uffe2\uff88\uff921.86\uffc2\uffa0\uffc2\uffb1\uffc2\uffa00.37\uffc2\uffa0g CH4\uffe2\uff80\uff93C\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0d\uffe2\uff88\uff921) with no significant differences among treatments. The positive global warming impact (GWI) of converted soybean fields under both CT (11.5 Mg CO2e\uffc2\uffa0ha\uffe2\uff88\uff921) and NT (2.87 Mg CO2e\uffc2\uffa0ha\uffe2\uff88\uff921) was in contrast to the negative GWI of the unconverted reference field (\uffe2\uff88\uff923.5 Mg CO2e\uffc2\uffa0ha\uffe2\uff88\uff921) with on\uffe2\uff80\uff90going greenhouse gas (GHG) mitigation. N2O contributed 39.3% and 55.0% of the GWI under CT and NT systems with the remainder contributed by CO2 (60.7% and 45.0%, respectively). Including foregone mitigation, we conclude that NT management can reduce GHG costs by ~60% compared to CT during initial CRP conversion.
", "keywords": ["Crops", " Agricultural", "Greenhouse Effect", "2. Zero hunger", "Conservation of Natural Resources", "Michigan", "Nitrous Oxide", "Agriculture", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Primary Research Articles", "6. Clean water", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Methane"]}, "links": [{"href": "https://doi.org/10.1111/gcb.12216"}, {"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.12216", "name": "item", "description": "10.1111/gcb.12216", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.12216"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-05-02T00:00:00Z"}}, {"id": "10.1111/gcb.12810", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:55Z", "type": "Journal Article", "created": "2014-11-18", "title": "Effects Of Elevated Ozone Concentration On Ch4 And N2o Emission From Paddy Soil Under Fully Open-Air Field Conditions", "description": "AbstractWe investigated the effects of elevated ozone concentration (E\uffe2\uff80\uff90O3) on CH4 and N2O emission from paddies with two rice cultivars: an inbred Indica cultivar Yangdao 6 (YD6) and a hybrid one II\uffe2\uff80\uff90you 084 (IIY084), under fully open\uffe2\uff80\uff90air field conditions in China. A mean 26.7% enhancement of ozone concentration above the ambient level (A\uffe2\uff80\uff90O3) significantly reduced CH4 emission at tillering and flowering stages leading to a reduction of seasonal integral CH4 emission by 29.6% on average across the two cultivars. The reduced CH4 emission is associated with O3\uffe2\uff80\uff90induced reduction in the whole\uffe2\uff80\uff90plant biomass (\uffe2\uff88\uff9213.2%), root biomass (\uffe2\uff88\uff9234.7%), and maximum tiller number (\uffe2\uff88\uff9210.3%), all of which curbed the carbon supply for belowground CH4 production and its release from submerged soil to atmosphere. Although no significant difference was detected between the cultivars in the CH4 emission response to E\uffe2\uff80\uff90O3, a larger decrease in CH4 emission with IIY084 (\uffe2\uff88\uff9233.2%) than that with YD6 (\uffe2\uff88\uff927.0%) was observed at tillering stage, which may be due to the larger reduction in tiller number in IIY084 by E\uffe2\uff80\uff90O3. Additionally, E\uffe2\uff80\uff90O3 reduced seasonal mean NOx flux by 5.7% and 11.8% with IIY084 and YD6, respectively, but the effects were not significant statistically. We found that the relative response of CH4 emission to E\uffe2\uff80\uff90O3 was not significantly different from those reported in open\uffe2\uff80\uff90top chamber experiments. This study has thus confirmed that increasing ozone concentration would mitigate the global warming potential of CH4 and suggested consideration of the feedback mechanism between ozone and its precursor emission into the projection of future ozone effects on terrestrial ecosystem.
", "keywords": ["2. Zero hunger", "Air Pollutants", "China", "Nitrous Oxide", "Agriculture", "Oryza", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Soil", "Ozone", "13. Climate action", "8. Economic growth", "0401 agriculture", " forestry", " and fisheries", "Methane", "Ecosystem", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Gang Liu, Haoye Tang, Haoye Tang, Kazuhiko Kobayashi, Jianguo Zhu,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1111/gcb.12810"}, {"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.12810", "name": "item", "description": "10.1111/gcb.12810", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.12810"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-12-23T00:00:00Z"}}, {"id": "10.1111/gcb.13119", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:55Z", "type": "Journal Article", "created": "2015-10-10", "title": "Enhanced Winter Soil Frost Reduces Methane Emission During The Subsequent Growing Season In A Boreal Peatland", "description": "AbstractWinter climate change may result in reduced snow cover and could, consequently, alter the soil frost regime and biogeochemical processes underlying the exchange of methane (CH4) in boreal peatlands. In this study, we investigated the short\uffe2\uff80\uff90term (1\uffe2\uff80\uff933\uffc2\uffa0years) vs. long\uffe2\uff80\uff90term (11\uffc2\uffa0years) effects of intensified winter soil frost (induced by experimental snow exclusion) on CH4 exchange during the following growing season in a boreal peatland. In the first 3\uffc2\uffa0years (2004\uffe2\uff80\uff932006), lower CH4 emissions in the treatment plots relative to the control coincided with delayed soil temperature increase in the treatment plots at the beginning of the growing season (May). After 11 treatment years (in 2014), CH4 emissions were lower in the treatment plots relative to the control over the entire growing season, resulting in a reduction in total growing season CH4 emission by 27%. From May to July 2014, reduced sedge leaf area coincided with lower CH4 emissions in the treatment plots compared to the control. From July to August, lower dissolved organic carbon concentrations in the pore water of the treatment plots explained 72% of the differences in CH4 emission between control and treatment. In addition, greater Sphagnum moss growth in the treatment plots resulted in a larger distance between the moss surface and the water table (i.e., increasing the oxic layer) which may have enhanced the CH4 oxidation potential in the treatment plots relative to the control in 2014. The differences in vegetation might also explain the lower temperature sensitivity of CH4 emission observed in the treatment plots relative to the control. Overall, this study suggests that greater soil frost, associated with future winter climate change, might substantially reduce the growing season CH4 emission in boreal peatlands through altering vegetation dynamics and subsequently causing vegetation\uffe2\uff80\uff90mediated effects on CH4 exchange.
", "keywords": ["Sweden", "Climate Change", "Ice", "Temperature", "04 agricultural and veterinary sciences", "Forests", "15. Life on land", "01 natural sciences", "Plant Leaves", "Soil", "13. Climate action", "Snow", "Sphagnopsida", "0401 agriculture", " forestry", " and fisheries", "Cyperaceae", "Seasons", "Methane", "Plant Shoots", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/gcb.13119"}, {"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.13119", "name": "item", "description": "10.1111/gcb.13119", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.13119"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-01-06T00:00:00Z"}}, {"id": "10.1111/gcb.13737", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:56Z", "type": "Journal Article", "created": "2017-05-02", "title": "Higher yields and lower methane emissions with new rice cultivars", "description": "AbstractBreeding high\uffe2\uff80\uff90yielding rice cultivars through increasing biomass is a key strategy to meet rising global food demands. Yet, increasing rice growth can stimulate methane (CH4) emissions, exacerbating global climate change, as rice cultivation is a major source of this powerful greenhouse gas. Here, we show in a series of experiments that high\uffe2\uff80\uff90yielding rice cultivars actually reduce CH4 emissions from typical paddy soils. Averaged across 33 rice cultivars, a biomass increase of 10% resulted in a 10.3% decrease in CH4 emissions in a soil with a high carbon (C) content. Compared to a low\uffe2\uff80\uff90yielding cultivar, a high\uffe2\uff80\uff90yielding cultivar significantly increased root porosity and the abundance of methane\uffe2\uff80\uff90consuming microorganisms, suggesting that the larger and more porous root systems of high\uffe2\uff80\uff90yielding cultivars facilitated CH4 oxidation by promoting O2 transport to soils. Our results were further supported by a meta\uffe2\uff80\uff90analysis, showing that high\uffe2\uff80\uff90yielding rice cultivars strongly decrease CH4 emissions from paddy soils with high organic C contents. Based on our results, increasing rice biomass by 10% could reduce annual CH4 emissions from Chinese rice agriculture by 7.1%. Our findings suggest that modern rice breeding strategies for high\uffe2\uff80\uff90yielding cultivars can substantially mitigate paddy CH4 emission in China and other rice growing regions.
", "keywords": ["roots", "2. Zero hunger", "China", "Agriculture", "Oryza", "methanogenesis", "04 agricultural and veterinary sciences", "15. Life on land", "630", "Carbon", "meta-analysis", "Greenhouse Gases", "Soil", "13. Climate action", "methanotrophy", "0401 agriculture", " forestry", " and fisheries", "Biomass", "soil carbon", "Methane"]}, "links": [{"href": "https://doi.org/10.1111/gcb.13737"}, {"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.13737", "name": "item", "description": "10.1111/gcb.13737", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.13737"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-06-01T00:00:00Z"}}, {"id": "10.1111/gcb.15596", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:57Z", "type": "Journal Article", "created": "2021-03-12", "title": "Phenological stage of tundra vegetation controls bidirectional exchange of BVOCs in a climate change experiment on a subarctic heath", "description": "AbstractTraditionally, biogenic volatile organic compound (BVOC) emissions are often considered a unidirectional flux, from the ecosystem to the atmosphere, but recent studies clearly show the potential for bidirectional exchange. Here we aimed to investigate how warming and leaf litter addition affect the bidirectional exchange (flux) of BVOCs in a long\uffe2\uff80\uff90term field experiment in the Subarctic. We also assessed changes in net BVOC fluxes in relation to the time of day and the influence of different plant phenological stages. The study was conducted in a full factorial experiment with open top chamber warming and annual litter addition treatments in a tundra heath in Abisko, Northern Sweden. After 18\uffc2\uffa0years of treatments, ecosystem\uffe2\uff80\uff90level net BVOC fluxes were measured in the experimental plots using proton\uffe2\uff80\uff90transfer\uffe2\uff80\uff90reaction time\uffe2\uff80\uff90of\uffe2\uff80\uff90flight mass spectrometry (PTR\uffe2\uff80\uff93ToF\uffe2\uff80\uff93MS). The warming treatment increased monoterpene and isoprene emissions by \uffe2\uff89\uff8850%. Increasing temperature, due to diurnal variations, can both increase BVOC emission and simultaneously, increase ecosystem uptake. For any given treatment, monoterpene, isoprene, and acetone emissions also increased with increasing ambient air temperatures caused by diurnal variability. Acetaldehyde, methanol, and sesquiterpenes decreased likely due to a deposition flux. For litter addition, only a significant indirect effect on isoprene and monoterpene fluxes (decrease by ~50%\uffe2\uff80\uff9375%) was observed. Litter addition may change soil moisture conditions, leading to changes in plant species composition and biomass, which could subsequently result in changes to BVOC emission compositions. Phenological stages significantly affected fluxes of methanol, isoprene and monoterpenes. We suggest that plant phenological stages differ in impacts on BVOC net emissions, but ambient air temperature and photosynthetically active radiation (PAR) also interact and influence BVOC net emissions differently. Our results may also suggest that BVOC fluxes are not only a response to changes in temperature and light intensity, as the circadian clock also affects emission rates.
", "keywords": ["BVOC", "Sweden", "Take urgent action to combat climate change and its impacts", "Volatile Organic Compounds", "tundra", "Methanol", "Terpenoids", "Climate Change", "plant volatiles", "15. Life on land", "Primary Research Articles", "phenology", "01 natural sciences", "Arctic", "climate change", "Phenology", "terpenoids", "13. Climate action", "11. Sustainability", "Plant volatiles", "Tundra", "Ecosystem", "methanol", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15596"}, {"href": "https://doi.org/10.1111/gcb.15596"}, {"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.15596", "name": "item", "description": "10.1111/gcb.15596", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.15596"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-04T00:00:00Z"}}, {"id": "10.1111/gcb.16137", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:58Z", "type": "Journal Article", "created": "2022-03-14", "title": "Reduced methane emissions in former permafrost soils driven by vegetation and microbial changes following drainage", "description": "AbstractIn Arctic regions, thawing permafrost soils are projected to release 50 to 250 Gt of carbon by 2100. This data is mostly derived from carbon\uffe2\uff80\uff90rich wetlands, although 71% of this carbon pool is stored in faster\uffe2\uff80\uff90thawing mineral soils, where ecosystems close to the outer boundaries of permafrost regions are especially vulnerable. Although extensive data exists from currently thawing sites and short\uffe2\uff80\uff90term thawing experiments, investigations of the long\uffe2\uff80\uff90term changes following final thaw and co\uffe2\uff80\uff90occurring drainage are scarce. Here we show ecosystem changes at two comparable tussock tundra sites with distinct permafrost thaw histories, representing 15 and 25\uffc2\uffa0years of natural drainage, that resulted in a 10\uffe2\uff80\uff90fold decrease in CH4 emissions (3.2\uffc2\uffa0\uffc2\uffb1\uffc2\uffa02.2 vs. 0.3\uffc2\uffa0\uffc2\uffb1\uffc2\uffa00.4\uffc2\uffa0mg C\uffe2\uff80\uff90CH4\uffc2\uffa0m\uffe2\uff88\uff922\uffc2\uffa0day\uffe2\uff88\uff921), while CO2 emissions were comparable. These data extend the time perspective from earlier studies based on short\uffe2\uff80\uff90term experimental drainage. The overall microbial community structures did not differ significantly between sites, although the drier top soils at the most advanced site led to a loss of methanogens and their syntrophic partners in surface layers while the abundance of methanotrophs remained unchanged. The resulting deeper aeration zones likely increased CH4 oxidation due to the longer residence time of CH4 in the oxidation zone, while the observed loss of aerenchyma plants reduced CH4 diffusion from deeper soil layers directly to the atmosphere. Our findings highlight the importance of including hydrological, vegetation and microbial specific responses when studying long\uffe2\uff80\uff90term effects of climate change on CH4 emissions and underscores the need for data from different soil types and thaw histories.Anthropogenic nitrogen (N) enrichment of ecosystems, mainly from fuel combustion and fertilizer application, alters biogeochemical cycling of ecosystems in a way that leads to altered flux of biogenic greenhouse gases (GHGs). Our meta\uffe2\uff80\uff90analysis of 313 observations across 109 studies evaluated the effect of N addition on the flux of three major GHGs: CO2, CH4 and N2O. The objective was to quantitatively synthesize data from agricultural and non\uffe2\uff80\uff90agricultural terrestrial ecosystems across the globe and examine whether factors, such as ecosystem type, N addition level and chemical form of N addition influence the direction and magnitude of GHG fluxes. Results indicate that N addition increased ecosystem carbon content of forests by 6%, marginally increased soil organic carbon of agricultural systems by 2%, but had no significant effect on net ecosystem CO2 exchange for non\uffe2\uff80\uff90forest natural ecosystems. Across all ecosystems, N addition increased CH4 emission by 97%, reduced CH4 uptake by 38% and increased N2O emission by 216%. The net effect of N on the global GHG budget is calculated and this topic is reviewed. Most often N addition is considered to increase forest C sequestration without consideration of N stimulation of GHG production in other ecosystems. However, our study indicated that although N addition increased the global terrestrial C sink, the CO2 reduction could be largely offset (53\uffe2\uff80\uff9376%) by N stimulation of global CH4 and N2O emission from multiple ecosystems.
", "keywords": ["Greenhouse Effect", "2. Zero hunger", "Air Pollutants", "Nitrogen", "Nitrogen Dioxide", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "01 natural sciences", "6. Clean water", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Methane", "Ecosystem", "Environmental Monitoring", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/j.1461-0248.2009.01351.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1461-0248.2009.01351.x", "name": "item", "description": "10.1111/j.1461-0248.2009.01351.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1461-0248.2009.01351.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-09-10T00:00:00Z"}}, {"id": "10.1111/j.1757-1707.2011.01116.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:21Z", "type": "Journal Article", "created": "2011-09-05", "title": "Land-Use Change To Bioenergy Production In Europe: Implications For The Greenhouse Gas Balance And Soil Carbon", "description": "AbstractBioenergy from crops is expected to make a considerable contribution to climate change mitigation. However, bioenergy is not necessarily carbon neutral because emissions of CO2, N2O and CH4 during crop production may reduce or completely counterbalance CO2 savings of the substituted fossil fuels. These greenhouse gases (GHGs) need to be included into the carbon footprint calculation of different bioenergy crops under a range of soil conditions and management practices. This review compiles existing knowledge on agronomic and environmental constraints and GHG balances of the major European bioenergy crops, although it focuses on dedicated perennial crops such as Miscanthus and short rotation coppice species. Such second\uffe2\uff80\uff90generation crops account for only 3% of the current European bioenergy production, but field data suggest they emit 40% to >99% less N2O than conventional annual crops. This is a result of lower fertilizer requirements as well as a higher N\uffe2\uff80\uff90use efficiency, due to effective N\uffe2\uff80\uff90recycling. Perennial energy crops have the potential to sequester additional carbon in soil biomass if established on former cropland (0.44\uffc2\uffa0Mg soil C ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921 for poplar and willow and 0.66\uffc2\uffa0Mg soil C ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921 for Miscanthus). However, there was no positive or even negative effects on the C balance if energy crops are established on former grassland. Increased bioenergy production may also result in direct and indirect land\uffe2\uff80\uff90use changes with potential high C losses when native vegetation is converted to annual crops. Although dedicated perennial energy crops have a high potential to improve the GHG balance of bioenergy production, several agronomic and economic constraints still have to be overcome.
", "keywords": ["carbon footprint", "short rotation coppice", "0211 other engineering and technologies", "Miscanthus", "02 engineering and technology", "7. Clean energy", "12. Responsible consumption", "Carbon debt", "CARBON CYCLE; CARBON SEQUESTRATION; ENVIRONMENTAL EFFECTS; BIOENERGY", "Biofuel", "Land management", "0202 electrical engineering", " electronic engineering", " information engineering", "carbon debt", "2. Zero hunger", "Nitrous oxide", "nitrous oxide", "Soil organic carbon", "methane", "land management", "15. Life on land", "Carbon footprint", "soil organic carbon", "13. Climate action", "biofuel", "Short rotation coppice", "Methane"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/117133/1/117133%20j.1757-1707.2011.01116.x.pdf"}, {"href": "https://doi.org/10.1111/j.1757-1707.2011.01116.x"}, {"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/j.1757-1707.2011.01116.x", "name": "item", "description": "10.1111/j.1757-1707.2011.01116.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1757-1707.2011.01116.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-09-04T00:00:00Z"}}, {"id": "10.1111/j.1574-6941.2007.00394.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:18Z", "type": "Journal Article", "created": "2007-10-19", "title": "Quantitation And Diversity Analysis Of Ruminal Methanogenic Populations In Response To The Antimethanogenic Compound Bromochloromethane", "description": "Methyl coenzyme-M reductase A (mcrA) clone libraries were generated from microbial DNA extracted from the rumen of cattle fed a roughage diet with and without supplementation of the antimethanogenic compound bromochloromethane. Bromochloromethane reduced total methane emissions by c. 30%, with a resultant increase in propionate and branched chain fatty acids. The mcrA clone libraries revealed that Methanobrevibacter spp. were the dominant species identified. A decrease in the incidence of Methanobrevibacter spp. from the clone library generated from bromochloromethane treatment was observed. In addition, a more diverse methanogenic population with representatives from Methanococcales, Methanomicrobiales and Methanosacinales orders was observed for the bromochloromethane library. Sequence data generated from these libraries aided in the design of an mcrA-targeted quantitative PCR (qPCR) assay. The reduction in methane production by bromochloromethane was associated with an average decrease of 34% in the number of methanogenic Archaea when monitored with this qPCR assay. Dissociation curve analysis of mcrA amplicons showed a clear difference in melting temperatures for Methanobrevibacter spp. (80-82 degrees C) and all other methanongens (84-86 degrees C). A decrease in the intensity of the Methanobrevibacter spp. specific peak and an increase for the other peak in the bromochloromethane-treated animals corresponded with the changes within the clone libraries.", "keywords": ["Male", "0301 basic medicine", "Rumen", "Bromochloromethane", "Methanogens", "Molecular Sequence Data", "Euryarchaeota", "Methanobrevibacter", "Polymerase Chain Reaction", "630", "03 medical and health sciences", "2402 Applied Microbiology and Biotechnology", "Animals", "Methyl coenzyme-M reductase", "Phylogeny", "Gene Library", "2. Zero hunger", "0303 health sciences", "Hydrocarbons", " Halogenated", "2404 Microbiology", "Sequence Analysis", " DNA", "mcrA", "qPCR", "DNA", " Archaeal", "Cattle", "Oxidoreductases", "2303 Ecology", "Methane"]}, "links": [{"href": "https://doi.org/10.1111/j.1574-6941.2007.00394.x"}, {"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": "10.1111/j.1574-6941.2007.00394.x", "name": "item", "description": "10.1111/j.1574-6941.2007.00394.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1574-6941.2007.00394.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-12-01T00:00:00Z"}}, {"id": "10.1111/j.1600-0889.2007.00304.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:18Z", "type": "Journal Article", "created": "2012-12-17", "title": "Fluxes And Production Of N2o, Co2 And Ch4 In Boreal Agricultural Soil During Winter As Affected By Snow Cover", "description": "Agricultural soils are important source of atmospheric nitrous oxide (N2O) and a considerable part of annual N2O release occurs during the cold season in the boreal region. According to recent studies N2O can be produced in soils at low temperatures, below 0 \u00b0C. We studied if removal of the snowcover lowers soil temperatures and whether this would affect flux rates of N2O, carbon dioxide (CO2) and methane (CH4) from an agricultural soil in eastern Finland. Gas flux rates and concentrations in soil were measured from study plots with undisturbed snow cover and from plots with snow removed. This experiment simulates changes in the soil thermal conditions with less snowfall. Plots without snow had even 15 \u00b0C lower temperature at the depth of 5 cm and they had higher N2O emissions during soil freezing and thawing. However, there were only minor changes in CH4 or CO2 flux rates after removal of snow over the cold season. N2O and CO2 accumulated in the soil during winter and were then released rapidly during thawing in spring. CH4 concentrations in the soil remained lower than the atmospheric levels during winter and subsequently increased to the ambient levels after thawing. Future climate scenarios suggest possible decline in snowfall in northern Europe resulting in lower soil temperatures. This could lead to higher N2O emissions from boreal agricultural soils.DOI: 10.1111/j.1600-0889.2007.00304.x", "keywords": ["hiilidioksidi", "2. Zero hunger", "ilokaasu", "nitrous oxide", "methane", "0207 environmental engineering", "carbon dioxide", "snow cover", "04 agricultural and veterinary sciences", "02 engineering and technology", "15. Life on land", "maatalousmaa", "metaani", "01 natural sciences", "630", "kasvihuonekaasut", "13. Climate action", "greenhouse gases", "0401 agriculture", " forestry", " and fisheries", "agricultural soils", "lumipeite", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/j.1600-0889.2007.00304.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tellus%20B", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1600-0889.2007.00304.x", "name": "item", "description": "10.1111/j.1600-0889.2007.00304.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1600-0889.2007.00304.x"}, {"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": "10.1111/j.1747-0765.2008.00330.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:20Z", "type": "Journal Article", "created": "2009-01-29", "title": "Salinity And Organic Amendment Effects On Methane Emission From A Rain-Fed Saline Paddy Field", "description": "Abstract Organic amendment is a traditional practice for rehabilitating saline patches in north-east Thailand, but organic matter is known to enhance methane emission. However, a high degree of salinity might mitigate methane emission. The objective of the present study was to quantify the effects of salinity and organic amendments on methane emission from rain-fed paddy fields exposed to increasing salinity. A paddy field on a salt-affected Typic Natraqualfs was selected. Eighteen experimental plots were located in two randomized complete block designs placed inside and outside a saline patch. Each design of nine plots presented three replicates of two different organic amendments and a control treatment without organic amendment. During the rainy season the soil electrical conductivity, measured with an electromagnetic conductivity meter (ECEM), was greater than 300\u00a0mS\u00a0m\u22121 inside the saline patch, whereas outside the saline patch the values were lower than 200\u00a0mS\u00a0m\u22121. Rice straw (6.25\u00a0t\u00a0ha\u22121) and cow ma...", "keywords": ["[SDE] Environmental Sciences", "soil salinity", "550", "[SDV]Life Sciences [q-bio]", "north-east Thailand", "methane emission", "NORTH-EAST THAILAND", "saline paddy", "SOIL SALINITY", "630", "soil", "METHANE", "METHANE EMISSION", "ORGANIC AMENDMENTS", "2. Zero hunger", "SALINE PADDY SOIL", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "[SDV] Life Sciences [q-bio]", "organic amendments", "13. Climate action", "[SDE]Environmental Sciences", "0401 agriculture", " forestry", " and fisheries", "RIZ"]}, "links": [{"href": "https://doi.org/10.1111/j.1747-0765.2008.00330.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Science%20and%20Plant%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1747-0765.2008.00330.x", "name": "item", "description": "10.1111/j.1747-0765.2008.00330.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1747-0765.2008.00330.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-02-01T00:00:00Z"}}, {"id": "10.1111/j.1757-1707.2011.01136.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:21Z", "type": "Journal Article", "created": "2011-10-27", "title": "How Do Soil Emissions Of N2o, Ch4 And Co2 From Perennial Bioenergy Crops Differ From Arable Annual Crops?", "description": "AbstractIt is important to demonstrate that replacing fossil fuel with bioenergy crops can reduce the national greenhouse gas (GHG) footprint. We compared field emissions of nitrous oxide (N2O), methane (CH4) and soil respiration rates from the C4 grass Miscanthus\uffc2\uffa0\uffc3\uff97\uffc2\uffa0giganteus and willow (salix) with emissions from annual arable crops grown for food production. The study was carried out in NE England on adjacent fields of willow, Miscanthus, wheat (Triticum aetivum) and oilseed rape (Brassica napus). N2O, CH4 fluxes and soil respiration rates were measured monthly using static chambers from June 2008 to November 2010. Net ecosystem exchange (NEE) of carbon dioxide (CO2) was measured by eddy covariance on Miscanthus from May 2008 and on willow from October 2009 until November 2010. The N2O fluxes were significantly smaller from the bioenergy crops than that of the annual crops. Average fluxes were 8 and 32\uffc2\uffa0\uffce\uffbcg\uffc2\uffa0m\uffe2\uff88\uff922\uffc2\uffa0h\uffe2\uff88\uff921 N2O\uffe2\uff80\uff90N from wheat and oilseed rape, and 4 and 0.2\uffc2\uffa0\uffce\uffbcg\uffc2\uffa0m\uffe2\uff88\uff922\uffc2\uffa0h\uffe2\uff88\uff921 N2O\uffe2\uff80\uff90N from Miscanthus and willow, respectively. Soil CH4 fluxes were negligible for all crops and soil respiration rates were similar for all crops. NEE of CO2 was larger for Miscanthus (\uffe2\uff88\uff92770\uffc2\uffa0g\uffc2\uffa0C\uffc2\uffa0m\uffe2\uff88\uff922\uffc2\uffa0h\uffe2\uff88\uff921) than willow (\uffe2\uff88\uff92602\uffc2\uffa0g\uffc2\uffa0C\uffc2\uffa0m\uffe2\uff88\uff922\uffc2\uffa0h\uffe2\uff88\uff921) in the growing season of 2010. N2O emissions from Miscanthus and willow were lower than for the wheat and oilseed rape which is most likely a result of regular fertilizer application and tillage in the annual arable cropping systems. Application of 15N\uffe2\uff80\uff90labelled fertilizer to Miscanthus and oil seed rape resulted in a fertilizer\uffe2\uff80\uff90induced increase in N2O emission in both crops. Denitrification rates (N2O\uffc2\uffa0+\uffc2\uffa0N2) were similar for soil under Miscanthus and oilseed rape. Thus, perennial bioenergy crops only emit less GHGs than annual crops when they receive no or very low rates of N fertilizer.
", "keywords": ["2. Zero hunger", "willow", "nitrous oxide", "short rotation coppice", "methane", "Miscanthus", "04 agricultural and veterinary sciences", "bioenergy", "15. Life on land", "soil respiration", "7. Clean energy", "01 natural sciences", "6. Clean water", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/j.1757-1707.2011.01136.x"}, {"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/j.1757-1707.2011.01136.x", "name": "item", "description": "10.1111/j.1757-1707.2011.01136.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1757-1707.2011.01136.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-10-27T00:00:00Z"}}, {"id": "10.1111/nph.15582", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:23Z", "type": "Journal Article", "created": "2018-11-05", "title": "Methane emissions from tree stems: a new frontier in the global carbon cycle", "description": "SummaryTree stems from wetland, floodplain and upland forests can produce and emit methane (CH4). Tree CH4 stem emissions have high spatial and temporal variability, but there is no consensus on the biophysical mechanisms that drive stem CH4 production and emissions. Here, we summarize up to 30 opportunities and challenges for stem CH4 emissions research, which, when addressed, will improve estimates of the magnitudes, patterns and drivers of CH4 emissions and trace their potential origin. We identified the need: (1) for both long\uffe2\uff80\uff90term, high\uffe2\uff80\uff90frequency measurements of stem CH4 emissions to understand the fine\uffe2\uff80\uff90scale processes, alongside rapid large\uffe2\uff80\uff90scale measurements designed to understand the variability across individuals, species and ecosystems; (2) to identify microorganisms and biogeochemical pathways associated with CH4 production; and (3) to develop a mechanistic model including passive and active transport of CH4 from the soil\uffe2\uff80\uff93tree\uffe2\uff80\uff93atmosphere continuum. Addressing these challenges will help to constrain the magnitudes and patterns of CH4 emissions, and allow for the integration of pathways and mechanisms of CH4 production and emissions into process\uffe2\uff80\uff90based models. These advances will facilitate the upscaling of stem CH4 emissions to the ecosystem level and quantify the role of stem CH4 emissions for the local to global CH4 budget.
", "keywords": ["0301 basic medicine", "570", "upland forests", "methane emissions", "temporal variability", "Methanogenesis", "wetland forests", "Spatial variability", "Models", " Biological", "01 natural sciences", "Carbon Cycle", "Trees", "Tree stems", "03 medical and health sciences", "Wetland forests", "tree stems", "0105 earth and related environmental sciences", "Methane emissions", "CH transport", "Plant Stems", "Upland forests", "Temporal variability", "Water", "CH4 transport", "methanogenesis", "15. Life on land", "13. Climate action", "spatial variability", "Methane"]}, "links": [{"href": "https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.15582"}, {"href": "https://doi.org/10.1111/nph.15582"}, {"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.15582", "name": "item", "description": "10.1111/nph.15582", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.15582"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-12-18T00:00:00Z"}}, {"id": "10.1111/nph.17310", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:24Z", "type": "Journal Article", "created": "2021-05-17", "title": "Towards reliable measurements of trace gas fluxes at plant surfaces", "keywords": ["0106 biological sciences", "Rainforest", "Nitrous Oxide", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Methane", "Reunion", "01 natural sciences", "Trees"]}, "links": [{"href": "https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17310"}, {"href": "https://doi.org/10.1111/nph.17310"}, {"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.17310", "name": "item", "description": "10.1111/nph.17310", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.17310"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-05-17T00:00:00Z"}}, {"id": "10.1111/nph.17365", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:24Z", "type": "Journal Article", "created": "2021-03-29", "title": "New insight to the role of microbes in the methane exchange in trees: evidence from metagenomic sequencing", "description": "SummaryMethane (CH4) exchange in tree stems and canopies and the processes involved are among the least understood components of the global CH4 cycle. Recent studies have focused on quantifying tree stems as sources of CH4 and understanding abiotic CH4 emissions in plant canopies, with the role of microbial in situ CH4 formation receiving less attention. Moreover, despite initial reports revealing CH4 consumption, studies have not adequately evaluated the potential of microbial CH4 oxidation within trees. In this paper, we discuss the current level of understanding on these processes. Further, we demonstrate the potential of novel metagenomic tools in revealing the involvement of microbes in the CH4 exchange of plants, and particularly in boreal trees. We detected CH4\uffe2\uff80\uff90producing methanogens and novel monooxygenases, potentially involved in CH4 consumption, in coniferous plants. In addition, our field flux measurements from Norway spruce (Picea abies) canopies demonstrate both net CH4 emissions and uptake, giving further evidence that both production and consumption are relevant to the net CH4 exchange. Our findings, together with the emerging diversity of novel CH4\uffe2\uff80\uff90producing microbial groups, strongly suggest microbial analyses should be integrated in the studies aiming to reveal the processes and drivers behind plant CH4 exchange.
", "keywords": ["0301 basic medicine", "330", "ta1172", "metaani", "bakteerit", "Trees", "03 medical and health sciences", "boreal forests", "Ymp\u00e4rist\u00f6tiede", "2. Zero hunger", "0303 health sciences", "Norway", "ta1183", "kasvifysiologia", "puut (kasvit)", "genomiikka", "15. Life on land", "ta4112", "methanogenic archaea", "mets\u00e4t", "plant microbiome", "tree", "methane exchange", "boreaalinen vy\u00f6hyke", "mikrobisto", "13. Climate action", "Environmental Science", "aineiden kierto", "Metagenomics", "methanotrophic bacteria", "arkeonit", "Methane", "captured metagenomics"]}, "links": [{"href": "https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17365"}, {"href": "https://doi.org/10.1111/nph.17365"}, {"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.17365", "name": "item", "description": "10.1111/nph.17365", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.17365"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-05-02T00:00:00Z"}}, {"id": "10.1111/nph.17352", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:24Z", "type": "Journal Article", "created": "2021-03-19", "title": "Simultaneous tree stem and soil greenhouse gas (CO2, CH4, N2O) flux measurements: a novel design for continuous monitoring towards improving flux estimates and temporal resolution", "description": "Summary
Tree stems and soils can act as sources and sinks for the greenhouse gases (GHG) carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). Since both uptake and emission capacities can be large, especially in tropical rainforests, accurate assessments of the magnitudes and temporal variations of stem and soil GHG fluxes are required.
We designed a new flexible stem chamber system for continuously measuring GHG fluxes in a French Guianese rainforest. Here, we describe this new system, which is connected to an automated soil GHG flux system, and discuss measurement uncertainty and potential error sources.
In line with findings for soil GHG flux estimates, we demonstrated that lengthening the stem chamber closure time was required for accurate estimates of tree stem CH4 and N2O flux but not tree stem CO2 flux. The instrumented stem was a net source of CO2 and CH4 and a weak sink of N2O.
Our experimental setup operated successfully in situ and provided continuous tree and soil GHG measurements at a high temporal resolution over an 11\uffe2\uff80\uff90month period. This automated system is a major step forward in the measurement of GHG fluxes in stems and the atmosphere concurrently with soil GHG fluxes in tropical forest ecosystems.
Aerenchymatic transport is an important mechanism through which plants affect methane (CH4) emissions from peatlands. Controlling environmental factors and the effects of plant phenology remain, however, uncertain.
We identified factors controlling seasonal CH4 flux rate and investigated transport efficiency (flux rate per unit of rhizospheric porewater CH4 concentration). We measured CH4 fluxes through individual shoots of Carex rostrata, Menyanthes trifoliata, Betula nana and Salix lapponum throughout growing seasons in 2020 and 2021 and Equisetum fluviatile and Comarum palustre in high summer 2021 along with water\uffe2\uff80\uff90table level, peat temperature and porewater CH4 concentration.
CH4 flux rate of C. rostrata was related to plant phenology and peat temperature. Flux rates of M. trifoliata and shrubs B. nana and S. lapponum were insensitive to the investigated environmental variables. In high summer, flux rate and efficiency were highest for C. rostrata (6.86\uffe2\uff80\uff89mg\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffc2\uffa0h\uffe2\uff88\uff921 and 0.36\uffe2\uff80\uff89mg\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffc2\uffa0h\uffe2\uff88\uff921 (\uffce\uffbcmol\uffe2\uff80\uff89l\uffe2\uff88\uff921)\uffe2\uff88\uff921, respectively). Menyanthes trifoliata showed a high flux rate, but limited efficiency. Low flux rates and efficiency were detected for the remaining species.
Knowledge of the species\uffe2\uff80\uff90specific CH4 flux rate and their different responses to plant phenology and environmental factors can significantly improve the estimation of ecosystem\uffe2\uff80\uff90scale CH4 dynamics in boreal peatlands.
Plants are recognized as sources of aerobically produced methane (CH4), but the seasonality, environmental drivers and significance of CH4 emissions from the canopies of evergreen boreal trees remain poorly understood.
We measured the CH4 fluxes from the shoots of Pinus sylvestris (Scots pine) and Picea abies (Norway spruce) saplings in a static, non\uffe2\uff80\uff90steady\uffe2\uff80\uff90state chamber setup to investigate if the shoots of boreal conifers are a source of CH4 during spring.
We found that the shoots of Scots pine emitted CH4 and these emissions correlated with the photosynthetically active radiation. For Norway spruce, the evidence for CH4 emissions from the shoots was inconclusive.
Our study shows that the canopies of evergreen boreal trees are a potential source of CH4 in the spring and that these emissions are driven by a temperature\uffe2\uff80\uff90by\uffe2\uff80\uff90light interaction effect of solar radiation either directly or indirectly through its effects on tree physiological processes.
Shoot\uffe2\uff80\uff90level emissions of aerobically produced methane (CH4) may be an overlooked source of tree\uffe2\uff80\uff90derived CH4, but insufficient understanding of the interactions between their environmental and physiological drivers still prevents the reliable upscaling of canopy CH4 fluxes.
We utilised a novel automated chamber system to continuously measure CH4 fluxes from the shoots of Pinus sylvestris (Scots pine) saplings under drought to investigate how canopy CH4 fluxes respond to the drought\uffe2\uff80\uff90induced alterations in their physiological processes and to isolate the shoot\uffe2\uff80\uff90level production of CH4 from soil\uffe2\uff80\uff90derived transport and photosynthesis.
We found that aerobic CH4 emissions are not affected by the drought\uffe2\uff80\uff90induced stress, changes in physiological processes, or decrease in photosynthesis. Instead, these emissions vary on short temporal scales with environmental drivers such as temperature, suggesting that they result from abiotic degradation of plant compounds.
Our study shows that aerobic CH4 emissions from foliage are distinct from photosynthesis\uffe2\uff80\uff90related processes. Thus, instead of photosynthesis rates, it is more reliable to construct regional and global estimates for the aerobic CH4 emission based on regional differences in foliage biomass and climate, also accounting for short\uffe2\uff80\uff90term variations of weather variables such as air temperature and solar radiation.
Recent studies have shown that stem fluxes, although highly variable among trees, can alter the strength of the methane (CH4) sink or nitrous oxide (N2O) source in some forests, but the patterns and magnitudes of these fluxes remain unclear. This study investigated the drivers of subdaily and seasonal variations in stem and soil CH4, N2O and carbon dioxide (CO2) fluxes.
CH4, N2O and CO2 fluxes were measured continuously for 19\uffe2\uff80\uff89months in individual stems of two tree species, Eperua falcata (Aubl.) and Lecythis poiteaui (O. Berg), and surrounding soils using an automated chamber system in an upland tropical forest. Subdaily variations in these fluxes were related to environmental and stem physiological (sap flow and stem diameter variations) measurements under contrasting soil water conditions.
The results showed that physiological and climatic drivers only partially explained the subdaily flux variations. Stem CH4 and CO2 emissions and N2O uptake varied with soil water content, time of day and between individuals. Stem fluxes decoupled from soil fluxes.
Our study contributes to understanding the regulation of stem greenhouse gas fluxes. It suggests that additional variables (e.g. internal gas concentrations, wood\uffe2\uff80\uff90colonising microorganisms, wood density and anatomy) may account for the remaining unexplained variability in stem fluxes, highlighting the need for further studies.
The objectives of this study were to formulate a vaccine based upon the different species/strains of methanogens present in sheep intended to be immunized and to determine if a targeted vaccine could be used to decrease the methane output of the sheep. Two 16S rRNA gene libraries were used to survey the methanogenic archaea in sheep prior to vaccination, and methanogens representing five phylotypes were found to account for >52% of the different species/strains of methanogens detected. A vaccine based on a mixture of these five methanogens was then formulated, and 32 sheep were vaccinated on days 0, 28, and 103 with either a control or the anti-methanogen vaccine. Enzyme-linked immunosorbent assay analysis revealed that each vaccination with the anti-methanogen formulation resulted in higher specific immunoglobulin G titers in plasma, saliva, and rumen fluid. Methane output levels corrected for dry-matter intake for the control and treatment groups were not significantly different, and real-time PCR data also indicated that methanogen numbers were not significantly different for the two groups after the second vaccination. However, clone library data indicated that methanogen diversity was significantly greater in sheep receiving the anti-methanogen vaccine and that the vaccine may have altered the composition of the methanogen population. A correlation between 16S rRNA gene sequence relatedness and cross-reactivity for the methanogens ( R 2 = 0.90) also exists, which suggests that a highly specific vaccine can be made to target specific strains of methanogens and that a more broad-spectrum approach is needed for success in the rumen. Our data also suggest that methanogens take longer than 4 weeks to adapt to dietary changes and call into question the validity of experimental results based upon a 2- to 4-week acclimatization period normally observed for bacteria. ", "keywords": ["Rumen", "Molecular Sequence Data", "DNA", " Ribosomal", "630", "Antibodies", "Plasma", "RNA", " Ribosomal", " 16S", "2402 Applied Microbiology and Biotechnology", "Animals", "Saliva", "1106 Food Science", "2. Zero hunger", "Vaccines", "Gastric Juice", "Sheep", "0402 animal and dairy science", "Biodiversity", "Sequence Analysis", " DNA", "04 agricultural and veterinary sciences", "Archaea", "3. Good health", "DNA", " Archaeal", "Immunoglobulin G", "1305 Biotechnology", "2303 Ecology", "Methane"]}, "links": [{"href": "https://doi.org/10.1128/aem.02453-08"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Applied%20and%20Environmental%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1128/aem.02453-08", "name": "item", "description": "10.1128/aem.02453-08", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1128/aem.02453-08"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-04-01T00:00:00Z"}}, {"id": "10.1128/aem.02218-17", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:30Z", "type": "Journal Article", "created": "2017-11-27", "title": "Impact of Peat Mining and Restoration on Methane Turnover Potential and Methane-Cycling Microorganisms in a Northern Bog", "description": "ABSTRACTOmbrotrophic peatlands are a recognized global carbon reservoir. Without restoration and peat regrowth, harvested peatlands are dramatically altered, impairing their carbon sink function, with consequences for methane turnover. Previous studies determined the impact of commercial mining on the physicochemical properties of peat and the effects on methane turnover. However, the response of the underlying microbial communities catalyzing methane production and oxidation have so far received little attention. We hypothesize that with the return of Sphagnum spp. postharvest, methane turnover potential and the corresponding microbial communities will converge in a natural and restored peatland. To address our hypothesis, we determined the potential methane production and oxidation rates in natural (as a reference), actively mined, abandoned, and restored peatlands over two consecutive years. In all sites, the methanogenic and methanotrophic population sizes were enumerated using quantitative PCR (qPCR) assays targeting the mcrA and pmoA genes, respectively. Shifts in the community composition were determined using Illumina MiSeq sequencing of the mcrA gene and a pmoA -based terminal restriction fragment length polymorphism (t-RFLP) analysis, complemented by cloning and sequence analysis of the mmoX gene. Peat mining adversely affected methane turnover potential, but the rates recovered in the restored site. The recovery in potential activity was reflected in the methanogenic and methanotrophic abundances. However, the microbial community composition was altered, being more pronounced for the methanotrophs. Overall, we observed a lag between the recovery of the methanogenic/methanotrophic activity and the return of the corresponding microbial communities, suggesting that a longer duration (>15 years) is needed to reverse mining-induced effects on the methane-cycling microbial communities.
IMPORTANCE Ombrotrophic peatlands are a crucial carbon sink, but this environment is also a source of methane, an important greenhouse gas. Methane emission in peatlands is regulated by methane production and oxidation catalyzed by methanogens and methanotrophs, respectively. Methane-cycling microbial communities have been documented in natural peatlands. However, less is known of their response to peat mining and of the recovery of the community after restoration. Mining exerts an adverse impact on potential methane production and oxidation rates and on methanogenic and methanotrophic population abundances. Peat mining also induced a shift in the methane-cycling microbial community composition. Nevertheless, with the return of Sphagnum spp. in the restored site after 15 years, methanogenic and methanotrophic activity and population abundance recovered well. The recovery, however, was not fully reflected in the community composition, suggesting that >15 years are needed to reverse mining-induced effects.
", "keywords": ["0301 basic medicine", "570", "oxidation", "hiili", "ta1172", "Euryarchaeota", "630", "Mining", "Soil", "03 medical and health sciences", "Sphagnum", "Bacterial Proteins", "Nitrogen Fixation", "Sphagnopsida", "14. Life underwater", "ennallistaminen", "turvemaat", "Ecosystem", "Phylogeny", "Soil Microbiology", "0303 health sciences", "nifH", "methane", "Microbiota", "ta1182", "land use", "methanogenesis", "15. Life on land", "Carbon", "kasvihuonekaasup\u00e4\u00e4st\u00f6t", "nitrogen fixation", "13. Climate action", "international", "Wetlands", "Oxygenases", "ta1181", "Methane", "Oxidation-Reduction"]}, "links": [{"href": "https://journals.asm.org/doi/pdf/10.1128/AEM.02218-17"}, {"href": "https://doi.org/10.1128/aem.02218-17"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Applied%20and%20Environmental%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1128/aem.02218-17", "name": "item", "description": "10.1128/aem.02218-17", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1128/aem.02218-17"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-02-01T00:00:00Z"}}, {"id": "10.1155/2019/1751783", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:38Z", "type": "Journal Article", "created": "2019-05-02", "title": "Acetotrophic Activity Facilitates Methanogenesis from LCFA at Low Temperatures: Screening from Mesophilic Inocula", "description": "The inoculum source plays a crucial role in the anaerobic treatment of wastewaters. Lipids are present in various wastewaters and have a high methanogenic potential, but their hydrolysis results in the production of long chain fatty acids (LCFAs) that are inhibitory to anaerobic microorganisms. Screening of inoculum for the anaerobic treatment of LCFA-containing wastewaters has been performed at mesophilic and thermophilic conditions. However, an evaluation of inocula for producing methane from LCFA-containing wastewater has not yet been conducted at low temperatures and needs to be undertaken. In this study, three inocula (one granular sludge and two municipal digester sludges) were assessed for methane production from LCFA-containing synthetic dairy wastewater (SDW) at low temperatures (10 and 20\uffc2\uffb0C). A methane yield (based on mL-CH4/g-CODadded) of 86-65% with acetate and 45-20% with SDW was achieved within 10 days using unacclimated granular sludge, whereas the municipal digester sludges produced methane only at 20\uffc2\uffb0C but not at 10\uffc2\uffb0C even after 200 days of incubation. The acetotrophic activity in the inoculum was found to be crucial for methane production from LCFA at low temperatures, highlighting the role ofMethanosaeta(acetoclastic archaea) at low temperatures. The presence of bacterial taxa from the familySyntrophaceae(Syntrophusand uncultured taxa) in the inoculum was found to be important for methane production from SDW at 10\uffc2\uffb0C. This study suggests the evaluation of acetotrophic activity and the initial microbial community characteristics by high-throughput amplicon sequencing for selecting the inoculum for producing methane at low temperatures (up to 10\uffc2\uffb0C) from lipid-containing wastewaters.
", "keywords": ["Deltaproteobacteria", "0301 basic medicine", "570", "0303 health sciences", "Sewage", "218 Environmental engineering", "Microbiota", "116 Chemical sciences", "Fatty Acids", "Temperature", "116", "Acetates", "Methanosarcinales", "6. Clean water", "03 medical and health sciences", "218", "13. Climate action", "11. Sustainability", "Anaerobiosis", "Methane", "Research Article"]}, "links": [{"href": "https://doi.org/10.1155/2019/1751783"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Archaea", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1155/2019/1751783", "name": "item", "description": "10.1155/2019/1751783", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1155/2019/1751783"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-05-02T00:00:00Z"}}, {"id": "10.1186/s40793-020-00354-x", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-04-03T16:20:43Z", "type": "Report", "title": "Impact of process temperature and organic loading rate on cellulolytic / hydrolytic biofilm microbiomes during biomethanation of ryegrass silage revealed by genome-centered metagenomics and metatranscriptomics", "description": "Anaerobic digestion (AD) of protein-rich grass silage was performed in experimental two-stage twophase biogas reactor systems at low vs. increased organic loading rates (OLRs) under mesophilic (37 °C) and thermophilic (55 °C) temperatures. To follow the adaptive response of the biomass-attached cellulolytic/hydrolytic biofilms at increasing ammonium/ammonia contents, genome-centered metagenomics and transcriptional profiling based on metagenome assembled genomes (MAGs) were conducted
", "contacts": [{"organization": "Irena Maus, Michael Klocke, Jaqueline Derenk\u00f3, Yvonne Stolze, Michael Beckstette, Carsten Jost, Daniel Wibberg, Jochen Blom, Christian Henke, Katharina Willenb\u00fccher, Madis Rumming, Antje Rademacher, Alfred P\u00fchler, Alexander Sczyrba, Andreas Schl\u00fcter,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1186/s40793-020-00354-x"}, {"rel": "self", "type": "application/geo+json", "title": "10.1186/s40793-020-00354-x", "name": "item", "description": "10.1186/s40793-020-00354-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1186/s40793-020-00354-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"null": "date"}}, {"id": "10.1371/journal.pone.0187681", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:54Z", "type": "Journal Article", "created": "2017-11-08", "title": "Effects Of Tillage Practice On Soil Structure, N2o Emissions And Economics In Cereal Production Under Current Socio-Economic Conditions In Central Bosnia And Herzegovina", "description": "Conservation tillage is expected to have a positive effect on soil physical properties, soil Carbon (C) storage, while reducing fuel, labour and machinery costs. However, reduced tillage could increase soil nitrous oxide (N2O) emissions and offset the expected gains from increased C sequestration. To date, conservation tillage is barely practiced or studied in Bosnia and Herzegovina (BH). Here, we report a field study on the short-term effects of reduced (RT) and no tillage (NT) on N2O emission dynamics, yield-scaled N2O emissions, soil structure and the economics of cereal production, as compared with conventional tillage (CT). The field experiment was conducted in the Sarajevo region on a clayey loam under typical climatic conditions for humid, continental BH. N2O emissions were monitored in a Maize-Barley rotation over two cropping seasons. Soil structure was studied at the end of the second season. In the much wetter 2014, N2O emission were in the order of CT > RT > NT, while in the drier 2015, the order was RT > CT > NT. The emission factors were within or slightly above the uncertainty range of the IPCC Tier 1 factor, if taking account for the N input from the cover crop (alfalfa) preceding the first experimental year. Saturated soils in spring, formation of soil crusts and occasional droughts adversely affected yields, particularly in the second year (barley). In 2014, yield-scaled N2O emissions ranged from 83.2 to 161.7 g N Mg-1 grain (corn) but were much greater in the second year due to crop failure (barley). RT had the smallest yield-scaled N2O emission in both years. NT resulted in economically inacceptable returns, due to the increased costs of weed control and low yields in both years. The reduced number of operations in RT reduced production costs and generated positive net returns. Therefore, RT could potentially provide agronomic and environmental benefits in crop production in BH.", "keywords": ["Crops", " Agricultural", "Science", "Nitrogentap", "Nitrous Oxide", "Zea mays", "7. Clean energy", "Sustainable farming", "Soil", "VDP::Jordfag: 913", "Humans", "Fertilizers", "B\u00e6rekraftig landbruk", "Bosnia and Herzegovina", "2. Zero hunger", "VDP::Soil sciences: 913", "Nitrogen loss", "Q", "R", "Hordeum", "04 agricultural and veterinary sciences", "15. Life on land", "Carbon", "Crop Production", "13. Climate action", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Seasons", "Methane", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0187681"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLOS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0187681", "name": "item", "description": "10.1371/journal.pone.0187681", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0187681"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-11-08T00:00:00Z"}}, {"id": "10.1371/journal.pone.0036794", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:51Z", "type": "Journal Article", "created": "2012-05-08", "title": "Effect Of Stocking Rate On Soil-Atmosphere Ch4 Flux During Spring Freeze-Thaw Cycles In A Northern Desert Steppe, China", "description": "Methane (CH(4)) uptake by steppe soils is affected by a range of specific factors and is a complex process. Increased stocking rate promotes steppe degradation, with unclear consequences for gas exchanges. To assess the effects of grazing management on CH(4) uptake in desert steppes, we investigated soil-atmosphere CH(4) exchange during the winter-spring transition period.The experiment was conducted at twelve grazing plots denoting four treatments defined along a grazing gradient with three replications: non-grazing (0 sheep/ha, NG), light grazing (0.75 sheep/ha, LG), moderate grazing (1.50 sheep/ha, MG) and heavy grazing (2.25 sheep/ha, HG). Using an automatic cavity ring-down spectrophotometer, we measured CH(4) fluxes from March 1 to April 29 in 2010 and March 2 to April 27 in 2011. According to the status of soil freeze-thaw cycles (positive and negative soil temperatures occurred in alternation), the experiment was divided into periods I and II. Results indicate that mean CH(4) uptake in period I (7.51 \u00b5g CH(4)-C m(-2) h(-1)) was significantly lower than uptake in period II (83.07 \u00b5g CH(4)-C m(-2) h(-1)). Averaged over 2 years, CH(4) fluxes during the freeze-thaw period were -84.76 \u00b5g CH(4)-C m(-2) h(-1) (NG), -88.76 \u00b5g CH(4)-C m(-2) h(-1) (LG), -64.77 \u00b5g CH(4)-C m(-2) h(-1) (MG) and -28.80 \u00b5g CH(4)-C m(-2) h(-1) (HG).CH(4) uptake activity is affected by freeze-thaw cycles and stocking rates. CH(4) uptake is correlated with the moisture content and temperature of soil. MG and HG decreases CH(4) uptake while LG exerts a considerable positive impact on CH(4) uptake during spring freeze-thaw cycles in the northern desert steppe in China.", "keywords": ["2. Zero hunger", "China", "Sheep", "Science", "Q", "R", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "Soil", "13. Climate action", "Freezing", "Medicine", "Animals", "0401 agriculture", " forestry", " and fisheries", "Methane", "Ecosystem", "Research Article"], "contacts": [{"organization": "Andreas Wilkes, Chengjie Wang, Guodong Han, Yuanyuan Jiang, Ding Huang, Shiming Tang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0036794"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0036794", "name": "item", "description": "10.1371/journal.pone.0036794", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0036794"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-05-08T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?facets=true&offset=50&soil_chemical_properties=methane&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?facets=true&offset=50&soil_chemical_properties=methane&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?facets=true&soil_chemical_properties=methane&offset=0", "hreflang": "en-US"}, {"rel": "next", "type": "application/geo+json", "title": "items (next)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?facets=true&soil_chemical_properties=methane&offset=100", "hreflang": "en-US"}], "numberMatched": 190, "numberReturned": 50, "distributedFeatures": [], "timeStamp": "2026-04-04T15:21:05.856940Z"}