{"type": "FeatureCollection", "features": [{"id": "10.1016/j.vaccine.2004.03.053", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-06-27T16:18:51Z", "type": "Journal Article", "created": "2004-04-28", "title": "Reducing Methane Emissions In Sheep By Immunization Against Rumen Methanogens", "description": "This work was conducted to determine if methane emissions from sheep immunized with an anti-methanogen vaccine were significantly lower than methane emissions from non-immunized sheep, to test the effectiveness of two different vaccine formulations (VF) on methane abatement, and to compare methane emissions measured using a closed-circuit respiration chamber and the sulphur-hexafluoride (SF6) tracer technique. Thirty mature wether sheep were randomly allocated to three treatment groups (n = 10). One group received an immunization of adjuvant only on days 0 and 153 (control), a second group received an immunization with a 3-methanogen mix on days 0 and 153 (VF3 + 3), and a third group received an immunization of a 7-methanogen mix on day 0 followed by a 3-methanogen mix on day 153 (VF7 + 3). Four weeks post-secondary immunization, there was a significant 7.7% reduction in methane production per kg dry matter intake in the VF7 + 3 group compared to the controls (P = 0.051). However, methane emissions from sheep immunized with VF7 + 3 were not significantly different when compared to the sheep in the control group (P = 0.883). The average IgG and IgA antibody titres in both plasma and saliva of the VF3 + 3 immunized sheep were four to nine times higher than those immunized with VF7 + 3 (P< 0.001) at both 3 and 6 weeks post-secondary immunization. Data also revealed that SF6 methane estimates were consistently higher than the respiration chamber estimates and that there was no significant correlation between the SF6 methane estimates and the respiration chamber methane estimates (R2 = 0.11).", "keywords": ["2. Zero hunger", "Vaccines", "Rumen", "Sheep", "Time Factors", "Methanobacterium", "Immunization", " Secondary", "0402 animal and dairy science", "04 agricultural and veterinary sciences", "Methanobrevibacter", "Archaea", "Immunoglobulin A", "3. Good health", "Antibodies", " Archaeal", "Kinetics", "Adjuvants", " Immunologic", "13. Climate action", "Immunoglobulin G", "Methanosarcina", "Animals", "Methanomicrobiaceae", "Saliva", "Methane"]}, "links": [{"href": "https://doi.org/10.1016/j.vaccine.2004.03.053"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Vaccine", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.vaccine.2004.03.053", "name": "item", "description": "10.1016/j.vaccine.2004.03.053", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.vaccine.2004.03.053"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-09-01T00:00:00Z"}}, {"id": "10.1016/j.wasman.2021.04.006", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:18:52Z", "type": "Journal Article", "created": "2021-04-18", "title": "Closing nutrient loops in a maize rotation. Catch crops to reduce nutrient leaching and increase biogas production by anaerobic co-digestion with dairy manure", "description": "Three catch crop species, ryegrass, forage rape and black oat, were grown between successive rotations of maize to reduce nitrogen leaching due to maize fertilization with digested dairy manure. Catch crops showed a high nutrient uptake, but with a wide range, depending on the year and the specie. Ensiling was shown to be a feasible storing method increasing catch crop methane production per hectare between 14-36% compared with fresh catch crop. In semi-continuous co-digestion experiments, methane production was increased between 35-48%, in comparison with anaerobic digestion of dairy manure alone. Catch crops were shown to be a good co-substrate, being a sustainable option to prevent leaching of nutrients to the environment, thus closing the loops from production to utilization by optimal recycling measures.", "keywords": ["2. Zero hunger", "Nutrients", "15. Life on land", "Zea mays", "01 natural sciences", "7. Clean energy", "12. Responsible consumption", "Manure", "619", "Biofuels", "Digestion", "Anaerobiosis", "Methane", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.wasman.2021.04.006"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Waste%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.wasman.2021.04.006", "name": "item", "description": "10.1016/j.wasman.2021.04.006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.wasman.2021.04.006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-05-01T00:00:00Z"}}, {"id": "10.1016/j.watres.2019.114932", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:18:52Z", "type": "Journal Article", "created": "2019-07-30", "title": "Assessing practical identifiability during calibration and cross-validation of a structured model for high-solids anaerobic digestion", "description": "High-solids anaerobic digestion (HS-AD) of the organic fraction of municipal solid waste (OFMSW) is operated at a total solid (TS) content\u202f\u2265\u202f10% to enhance the waste treatment economy, though it might be associated to free ammonia (NH3) inhibition. This study aimed to calibrate and cross-validate a HS-AD model for homogenized reactors in order to assess the effects of high NH3 levels in HS-AD of OFMSW, but also to evaluate the suitability of the reversible non-competitive inhibition function to reproduce the effect of NH3 on the main acetogenic and methanogenic populations. The practical identifiability of structural/biochemical parameters (i.e. 35) and initial conditions (i.e. 32) was evaluated using batch experiments at different TS and/or inoculum-to-substrate ratios. Variance-based global sensitivity analysis and approximate Bayesian computation were used for parameter optimization. The experimental data in this study permitted to estimate up to 8 biochemical parameters, whereas the rest of parameters and biomass contents were poorly identifiable. The study also showed the relatively high levels of NH3 (i.e. up to 2.3\u202fg\u202fN/L) and ionic strength (i.e. up to 0.9\u202fM) when increasing TS in HS-AD of OFMSW. However, the NH3 non-competitive function was unable to capture the acetogenic/methanogenic inhibition. Therefore, the calibration emphasized the need for target-oriented experimental data to enhance the practical identifiability and the predictive capabilities of structured HS-AD models, but also the need for further testing the NH3 inhibition function used in these simulations.", "keywords": ["[SDE] Environmental Sciences", "[SDV]Life Sciences [q-bio]", "0207 environmental engineering", "high-solids anaerobic digestion model", "Bayes Theorem", "02 engineering and technology", "Solid Waste", "01 natural sciences", "7. Clean energy", "6. Clean water", "Refuse Disposal", "12. Responsible consumption", "[SDV] Life Sciences [q-bio]", "High-solids anaerobic digestion model", " ammonia inhibition", " ionic strength", " global sensitivity analysis", " approximate bayesian computation", "Bioreactors", "global sensitivity analysis", "[SDE]Environmental Sciences", "Calibration", "High-solids anaerobic digestion model", "Anaerobiosis", "ionic strength", "Methane", "ammonia inhibition", "approximate bayesian computation", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://www.iris.unina.it/bitstream/11588/757589/1/Post-print%20for%20IRIS.pdf"}, {"href": "https://hal.inrae.fr/hal-02623443/file/S0043135419307067.pdf"}, {"href": "https://doi.org/10.1016/j.watres.2019.114932"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Water%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.watres.2019.114932", "name": "item", "description": "10.1016/j.watres.2019.114932", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.watres.2019.114932"}, {"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": "10.1017/s0007114508981435", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:18:54Z", "type": "Journal Article", "created": "2008-05-15", "title": "Effects Of The Absence Of Protozoa From Birth Or From Weaning On The Growth And Methane Production Of Lambs", "description": "

Merino ewes (n108) joined to a single sire were allocated into three flocks, with ewes in one flock being chemically defaunated in the second month of gestation. Single lambs born to defaunated ewes (BF lambs) were heavier at birth and at weaning than lambs born to faunated ewes (F lambs). After weaning, all BF and F lambs were individually housed then half of the F lambs were chemically defaunated (DF lambs). In trial 1, BF, DF and F lambs were offered a concentrate-based diet containing either 14 or 19\uffc2\uffa0% protein for a 10-week period. Wool growth rate of BF lambs was 10\uffc2\uffa0% higher than that of DF or F lambs and was increased 9\uffc2\uffa0% by the high-protein diet. While there was no main effect of protozoa treatment on enteric methane production, there was an interaction between protozoa treatment and diet for methane production. BF and DF lambs produced more methane than F lambs when fed the low-protein diet but when fed the high-protein diet, emissions were less than (BF lambs) or not different from (DF lambs) emissions from F lambs. In trial 2, lambs were offered 800\uffc2\uffa0g roughage per d and, again, methane production was not affected by the presence of protozoa in the rumen. The data indicate that while lambs without rumen protozoa have greater protein availability than do faunated ruminants, there is no main effect of rumen protozoa on enteric methane production by lambs fed either a concentrate or roughage diet.

", "keywords": ["2. Zero hunger", "Rumen", "Wool", "0402 animal and dairy science", "Eukaryota", "Growth", "Weaning", "04 agricultural and veterinary sciences", "Specific Pathogen-Free Organisms", "Animals", " Newborn", "Fermentation", "Animals", "Birth Weight", "Female", "Methane", "Sheep", " Domestic"], "contacts": [{"organization": "B. A. Vanselow, Roger Hegarty, S. H. Bird, R. Woodgate,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1017/s0007114508981435"}, {"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": "10.1017/s0007114508981435", "name": "item", "description": "10.1017/s0007114508981435", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1017/s0007114508981435"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-12-01T00:00:00Z"}}, {"id": "10.1017/s1357729800054643", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:18:57Z", "type": "Journal Article", "created": "2019-05-06", "title": "Ruminal Fermentation, Methanogenesis And Nitrogen Utilization Of Sheep Receiving Tropical Grass Hay-Concentrate Diets Offered With Sapindus Saponaria Fruits And Cratylia Argentea Foliage", "description": "Abstract

The effects of supplementing a tropical, low-quality grass hay (Brachiaria dictyoneura) with legume foliage (Cratylia argentea) or fruits of the multipurpose tree Sapindus saponaria on ruminal fermentation, methane release and nitrogen (N) utilization were evaluated. Six Swiss White Hill lambs were used in a 6 \uffe2\uff9c\uff95 6 Latin-square design with a 3 \uffe2\uff9c\uff95 2 factorial arrangement of treatments with measurements of energy metabolism being conducted using open-circuit respiratory chambers. Treatments consisted of three basal diets, either grass alone or legume: grass ratios of 1: 2 or 2: 1. These basal diets were supplemented (1: 3) with a control concentrate or with a concentrate containing 250 g/kg dry matter ofS. saponariafruits. The apparent total tract digestibilities of organic matter (OM) and neutral-detergent fibre (NDF) were reduced and the proportionate crude protein (CP) losses through faeces were increased (P 0\uffc2\uffb701) by supplementation withS. saponaria, and digestibilities of OM and NDF were linearly reduced (P 0\uffc2\uffb7001) with increasing legume proportion. Body energy retention, however, was similar in all diets. Along with CP intake, the proportionate CP losses through faeces decreased (P 0\uffc2\uffb7001) with increasing legume proportion which was associated with improved (P 0\uffc2\uffb7001) body protein retention and reduced (P 0\uffc2\uffb71) fat retention. Ruminal fluid ammonia concentration was not significantly affected (P > 0\uffc2\uffb71) by the inclusion ofS. saponariain the concentrate, but increased linearly (P 0\uffc2\uffb7001) as dietary legume proportion was elevated. Supplementation with fruits ofS. saponariaincreased (P 0\uffc2\uffb701) total bacteria count, and decreased (P 0\uffc2\uffb7001) total ciliate protozoa count by more than proportionately 0\uffc2\uffb750. Daily methane release was reduced (P 0\uffc2\uffb701) byS. saponariasupplementation in all basal diet types. Although being not clearly affected on a daily basis, methane release relative to body protein retention decreased linearly (P 0\uffc2\uffb705) with increasing legume proportion. The fact that interactions were mostly non-significant (P > 0\uffc2\uffb705) indicates that supplementation withS. saponariafruits is a useful means to reduce methane emission from sheep given both tropical grass-based and grass-legume-based diets. Likewise, including legumes in N-limited tropical diets seems to represent an environmentally friendly way to improve animal productivity.

", "keywords": ["2. Zero hunger", "sheep", "digesti\u00f3n ruminal", "brachiaria dictyoneura", "methane", "0402 animal and dairy science", "ovinos", "saponinas", "04 agricultural and veterinary sciences", "suplementos", "feed crops", "supplements", "metano", "saponins", "sapindus saponaria", "cratylia", "rumen digestion"], "contacts": [{"organization": "Hess, HD, Beuret, RA, Lotscher, M, Hindrichsen, I.K., Machmuller, A, Carulla, Juan E., Lascano, Carlos E., Kreuzer, M.,", "roles": ["creator"]}]}, "links": [{"href": "http://www.veterinaria.unal.edu.co/inv/nutricion/Hess_2004_AS.pdf"}, {"href": "https://doi.org/10.1017/s1357729800054643"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Animal%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1017/s1357729800054643", "name": "item", "description": "10.1017/s1357729800054643", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1017/s1357729800054643"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-04-01T00:00:00Z"}}, {"id": "10.1017/s1751731108001791", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:18:58Z", "type": "Journal Article", "created": "2008-04-15", "title": "Effect Of The Tropical Tannin-Rich Shrub Legumes Calliandra Calothyrsus And Flemingia Macrophylla On Methane Emission And Nitrogen And Energy Balance In Growing Lambs", "description": "Open AccessISSN:1751-7311", "keywords": ["Brachiaria; methane; ruminants; tannins; Vigna", "ruminants", "tannins", "methane", "Vigna", "0402 animal and dairy science", "Brachiaria", "04 agricultural and veterinary sciences", "SF1-1100", "Animal culture"], "contacts": [{"organization": "Tiemann, T. T., Lascano, C. E., Wettstein, H.-R, Mayer, A. C., Kreuzer, M., Hess, H. D.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1017/s1751731108001791"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Animal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1017/s1751731108001791", "name": "item", "description": "10.1017/s1751731108001791", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1017/s1751731108001791"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-01-01T00:00:00Z"}}, {"id": "10.1021/acs.est.6b06470", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:19:00Z", "type": "Journal Article", "created": "2017-06-02", "title": "How Does Recycling of Livestock Manure in Agroecosystems Affect Crop Productivity, Reactive Nitrogen Losses, and Soil Carbon Balance?", "description": "Recycling of livestock manure in agroecosystems to partially substitute synthetic fertilizer nitrogen (N) input is recommended to alleviate the environmental degradation associated with synthetic N fertilization, which may also affect food security and soil greenhouse gas (GHG) emissions. However, how substituting livestock manure for synthetic N fertilizer affects crop productivity (crop yield; crop N uptake; N use efficiency), reactive N (Nr) losses (ammonia (NH3) emission, N leaching and runoff), GHG (methane, CH4; and nitrous oxide, N2O; carbon dioxide) emissions and soil organic carbon (SOC) sequestration in agroecosystems is not well understood. We conducted a global meta-analysis of 141 studies and found that substituting livestock manure for synthetic N fertilizer (with equivalent N rate) significantly increased crop yield by 4.4% and significantly decreased Nr losses via NH3 emission by 26.8%, N leaching by 28.9% and N runoff by 26.2%. Moreover, annual SOC sequestration was significantly increased by 699.6 and 401.4 kg C ha-1 yr-1 in upland and paddy fields, respectively; CH4 emission from paddy field was significantly increased by 41.2%, but no significant change of that was observed from upland field; N2O emission was not significantly affected by manure substitution in upland or paddy fields. In terms of net soil carbon balance, substituting manure for fertilizer increased carbon sink in upland field, but increased carbon source in paddy field. These results suggest that recycling of livestock manure in agroecosystems improves crop productivity, reduces Nr pollution and increases SOC storage. To attenuate the enhanced carbon source in paddy field, appropriate livestock manure management practices should be adopted.", "keywords": ["2. Zero hunger", "Livestock", "Nitrogen", "Nitrous Oxide", "Agriculture", "04 agricultural and veterinary sciences", "15. Life on land", "Carbon", "12. Responsible consumption", "Manure", "Soil", "13. Climate action", "Animals", "0401 agriculture", " forestry", " and fisheries", "Fertilizers", "Methane"]}, "links": [{"href": "https://doi.org/10.1021/acs.est.6b06470"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%20%26amp%3B%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1021/acs.est.6b06470", "name": "item", "description": "10.1021/acs.est.6b06470", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/acs.est.6b06470"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-06-14T00:00:00Z"}}, {"id": "10.1023/a:1004518730970", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:19:05Z", "type": "Journal Article", "created": "2002-12-21", "description": "Elevated atmospheric CO2 has the potential to change below-ground nutrient cycling and thereby alter the soil-atmosphere exchange of biogenic trace gases. We measured fluxes of CH4 and N2O in trembling aspen (Populus tremuloides Michx.) stands grown in open-top chambers under ambient and twice-ambient CO2 concentrations crossed with \u2018high\u2019 and low soil-N conditions.", "keywords": ["measurement-", "nitrous-oxide", "flux-", "Vascular-Plants", "poplars-", "carbon-dioxide-enrichment", "photosynthesis-", "Nutrition-", "carbon-dioxide: atmospheric-concentration", "stand-growth", "nitrogen-cycle", "michigan-", "methane-: flux-", "soil-", "nitrogen-", "Populus-tremuloides [aspen-] (Salicaceae-)", "carbon-cycle", "methane-production", "soil-fertility", "Salicaceae-: Dicotyledones-", "populus-tremuloides", "cycling-", "Spermatophytes-", "Spermatophyta-", "Plantae-", "biological-activity-in-soil", "Climatology- (Environmental-Sciences)", "Angiosperms-", "Angiospermae-", "Plants-", "gases-", "oxidation-", "forest-soils", "methane-", "04 agricultural and veterinary sciences", "GLOBAL-ECOLOGY", "15. Life on land", "enzyme-activity", "gas-exchange", "nitrous-oxide: emission-", "soil-water", "13. Climate action", "denitrification-", "0401 agriculture", " forestry", " and fisheries", "soil-bacteria", "Dicots-", "efflux-"]}, "links": [{"href": "https://doi.org/10.1023/a:1004518730970"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1023/a:1004518730970", "name": "item", "description": "10.1023/a:1004518730970", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/a:1004518730970"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1999-02-01T00:00:00Z"}}, {"id": "10.2134/jeq2006.0501", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-06-27T16:22:33Z", "type": "Journal Article", "created": "2007-10-17", "title": "Methane Oxidation In An Intensively Cropped Tropical Rice Field Soil Under Long-Term Application Of Organic And Mineral Fertilizers", "description": "Abstract

Methane (CH4) oxidation is the only known biological sink process for mitigating atmospheric and terrestrial emissions of CH4, a major greenhouse gas. Methane oxidation in an alluvial soil planted to rice (Oryza sativaL.) under long\uffe2\uff80\uff90term application of organic (compost with a C/N ratio of 21.71), and mineral fertilizers was measured in a field\uffe2\uff80\uff90cum\uffe2\uff80\uff90laboratory incubation study. Oxidation rates were quantified in terms of decrease in the concentration of CH4in the headspace of incubation vessels and expressed as half\uffe2\uff80\uff90life (t\uffc2\uffbd) values. Methane oxidation rates significantly differed among the treatments and growth stages of the rice crop. Methane oxidation rates were high at the maximum tillering and maturity stages, whereas they were low at grain\uffe2\uff80\uff90filling stage. Methane oxidation was low (t\uffc2\uffbd= 15.76 d) when provided with low concentration of CH4On the contrary, high concentration of CH4resulted in faster oxidation (t\uffc2\uffbd= 6.67 d), suggesting the predominance of \uffe2\uff80\uff9clow affinity oxidation\uffe2\uff80\uff9d in rice fields. Methane oxidation was stimulated following the application of mineral fertilizers or compost implicating nutrient limitation as one of the factors affecting the process. Combined application of compost and mineral fertilizer, however, inhibited CH4oxidation probably due to N immobilization by the added compost. The positive effect of mineral fertilizer on CH4oxidation rate was evident only at high CH4concentration (t\uffc2\uffbd= 4.80 d), while at low CH4concentration their was considerable suppression (t\uffc2\uffbd= 17.60 d). Further research may reveal that long\uffe2\uff80\uff90term application of fertilizers, organic or inorganic, may not inhibit CH4oxidation.

", "keywords": ["Crops", " Agricultural", "2. Zero hunger", "Minerals", "Tropical Climate", "Time Factors", "Chemical Phenomena", "Chemistry", " Physical", "Oryza", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "6. Clean water", "Soil", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Food", " Organic", "Fertilizers", "Oxidoreductases", "Methane", "Oxidation-Reduction", "Soil Microbiology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.2134/jeq2006.0501"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Environmental%20Quality", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2134/jeq2006.0501", "name": "item", "description": "10.2134/jeq2006.0501", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2134/jeq2006.0501"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-11-01T00:00:00Z"}}, {"id": "10.1029/2002gb001886", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:19:13Z", "type": "Journal Article", "created": "2003-06-16", "title": "Effects Of Elevated Co2 And N Deposition On Ch4 Emissions From European Mires", "description": "

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

", "keywords": ["northern peatlands", "methane emissions", "atmospheric carbon-dioxide", "temperature", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "forest soils", "nitrogen deposition", "boreal mire", "13. Climate action", "raised co2", "0401 agriculture", " forestry", " and fisheries", "bog vegetation", "water-table", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1029/2002gb001886"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Biogeochemical%20Cycles", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2002gb001886", "name": "item", "description": "10.1029/2002gb001886", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2002gb001886"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-06-01T00:00:00Z"}}, {"id": "10.1029/2005jg000152", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:19:13Z", "type": "Journal Article", "created": "2006-08-08", "title": "Nutrient Control Of Microbial Carbon Cycling Along An Ombrotrophic-Minerotrophic Peatland Gradient", "description": "

Future climate change and other anthropogenic activities are likely to increase nutrient availability in many peatlands, and it is important to understand how these additional nutrients will influence peatland carbon cycling. We investigated the effects of nitrogen and phosphorus on aerobic CH4oxidation, anaerobic carbon mineralization (as CO2and CH4production), and anaerobic nutrient mineralization in a bog, an intermediate fen, and a rich fen in the Upper Peninsula of Michigan. We utilized a 5\uffe2\uff80\uff90week laboratory nutrient amendment experiment in conjunction with a 6\uffe2\uff80\uff90year field nutrient fertilization experiment to consider how the relative response to nitrogen and phosphorus differed among these wetlands over the short and long term. Field fertilizations generally increased nutrient availability in the upper 15 cm of peat and resulted in shifts in the vegetation community in each peatland. High nitrogen concentrations inhibited CH4oxidation in bog peat during short\uffe2\uff80\uff90term incubations; however, long\uffe2\uff80\uff90term fertilization with lower concentrations of nitrogen stimulated rates of CH4oxidation in bog peat. In contrast, no nitrogen effects on CH4oxidation were observed in the intermediate or rich fen peat. Anaerobic carbon mineralization in bog peat was consistently inhibited by increased phosphorus availability, but similar phosphorus additions had few effects in the intermediate fen and stimulated CH4production and nutrient mineralization in the rich fen. Our results demonstrate that nitrogen and phosphorus are important controls of peatland microbial carbon cycling; however, the role of these nutrients can differ over the short and long term and is strongly mediated by peatland type.

", "keywords": ["Other Ecology and Evolutionary Biology", "2. Zero hunger", "Terrestrial and Aquatic Ecology", "Nutrients", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Peatlands", "Biochemistry", "01 natural sciences", "6. Clean water", "Microbial Carbon Cycling", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Methane", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1029/2005jg000152"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2005jg000152", "name": "item", "description": "10.1029/2005jg000152", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2005jg000152"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-08-09T00:00:00Z"}}, {"id": "10.1029/2010jg001494", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:19:14Z", "type": "Journal Article", "created": "2011-02-03", "title": "Nitrous Oxide Emissions And Isotopic Composition In Urban And Agricultural Systems In Southern California", "description": "[1]\u00a0Nitrous oxide (N2O) is a powerful greenhouse gas increasing in atmospheric mixing ratio and linked to increasing amounts of reactive N in the environment, particularly fertilizer use in agriculture. The consequences of urbanization of agricultural land for global and regional N2O emissions are unclear, due to high spatial and temporal variability of fluxes from different ecosystems and relatively few studies of urban ecosystems. We measured fluxes and the stable isotope composition (\u03b415N and \u03b418O) of N2O over 1 year in urban (ornamental lawns and athletic fields) and agricultural (corn and vegetable fields) ecosystems near Los Angeles, California, United States. We found that urban landscapes (lawns and athletic fields) have annual N2O fluxes equal to or greater than agricultural fields. Fertilization rates of urban landscapes were equal to or greater than agricultural fields, with comparable N2O emissions factors. \u03b415N and \u03b418O of N2O varied widely in all ecosystems, and were not consistent with ecosystem type, season, soil moisture, or temperature. There was, however, a consistent response of \u03b415N-N2O to pulses of N2O emission following fertilization, with an initial depletion in \u03b415N relative to prefertilization values, then gradual enrichment to background values within about 1 week. Preliminary scaling calculations indicated that N2O emissions from urban landscapes are approximately equal to or greater than agricultural emissions in urbanized areas of southern California, which further implies that current estimates of regional N2O emissions (based on agricultural land area) may be too low.", "keywords": ["2. Zero hunger", "long-term", "denitrification", "variability", "methane", "cycle (with supplement)", "04 agricultural and veterinary sciences", "15. Life on land", "carbon-dioxide", "7. Clean energy", "01 natural sciences", "nitrification", "13. Climate action", "11. Sustainability", "global n2o budget", "soil-moisture", "0401 agriculture", " forestry", " and fisheries", "oxygen-exchange", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://escholarship.org/content/qt7q9586fd/qt7q9586fd.pdf"}, {"href": "https://doi.org/10.1029/2010jg001494"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2010jg001494", "name": "item", "description": "10.1029/2010jg001494", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2010jg001494"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-02-04T00:00:00Z"}}, {"id": "10.1029/2020gb006672", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:19:15Z", "type": "Journal Article", "created": "2020-09-02", "title": "Assessing the Potential for Mobilization of Old Soil Carbon After Permafrost Thaw: A Synthesis of 14 C Measurements From the Northern Permafrost Region", "description": "Abstract

The magnitude of future emissions of greenhouse gases from the northern permafrost region depends crucially on the mineralization of soil organic carbon (SOC) that has accumulated over millennia in these perennially frozen soils. Many recent studies have used radiocarbon (14C) to quantify the release of this \uffe2\uff80\uff9cold\uffe2\uff80\uff9d SOC as CO2 or CH4 to the atmosphere or as dissolved and particulate organic carbon (DOC and POC) to surface waters. We compiled ~1,900 14C measurements from 51 sites in the northern permafrost region to assess the vulnerability of thawing SOC in tundra, forest, peatland, lake, and river ecosystems. We found that growing season soil 14C\uffe2\uff80\uff90CO2 emissions generally had a modern (post\uffe2\uff80\uff901950s) signature, but that well\uffe2\uff80\uff90drained, oxic soils had increased CO2 emissions derived from older sources following recent thaw. The age of CO2 and CH4 emitted from lakes depended primarily on the age and quantity of SOC in sediments and on the mode of emission, and indicated substantial losses of previously frozen SOC from actively expanding thermokarst lakes. Increased fluvial export of aged DOC and POC occurred from sites where permafrost thaw caused soil thermal erosion. There was limited evidence supporting release of previously frozen SOC as CO2, CH4, and DOC from thawing peatlands with anoxic soils. This synthesis thus suggests widespread but not universal release of permafrost SOC following thaw. We show that different definitions of \uffe2\uff80\uff9cold\uffe2\uff80\uff9d sources among studies hamper the comparison of vulnerability of permafrost SOC across ecosystems and disturbances. We also highlight opportunities for future 14C studies in the permafrost region.

", "keywords": ["particulate organic carbon", "[SDE] Environmental Sciences", "0301 basic medicine", "551.9", "550", "permafrost thaw", "methane", "500", "carbon dioxide", "15. Life on land", "551", "dissolved organic carbon", "01 natural sciences", "[SDE.MCG] Environmental Sciences/Global Changes", "03 medical and health sciences", "13. Climate action", "radiocarbon", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://livrepository.liverpool.ac.uk/3106184/1/2020%20Estop%E2%80%90Aragon%C3%A9s%20et%20al%2C%20GBC%20-%20Arctic%2014C%20synthesis.pdf"}, {"href": "https://eprints.gla.ac.uk/222767/13/222767.pdf"}, {"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2020GB006672"}, {"href": "https://doi.org/10.1029/2020gb006672"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Biogeochemical%20Cycles", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2020gb006672", "name": "item", "description": "10.1029/2020gb006672", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2020gb006672"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-09-01T00:00:00Z"}}, {"id": "10.1029/2022je007190", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:19:17Z", "type": "Journal Article", "created": "2022-01-25", "title": "InSight Pressure Data Recalibration, and Its Application to the Study of Long-Term Pressure Changes on Mars", "description": "Abstract

Observations of the South Polar Residual Cap suggest a possible erosion of the cap, leading to an increase of the global mass of the atmosphere. We test this assumption by making the first comparison between Viking 1 and InSight surface pressure data, which were recorded 40\uffc2\uffa0years apart. Such a comparison also allows us to determine changes in the dynamics of the seasonal ice caps between these two periods. To do so, we first had to recalibrate the InSight pressure data because of their unexpected sensitivity to the sensor temperature. Then, we had to design a procedure to compare distant pressure measurements. We propose two surface pressure interpolation methods at the local and global scale to do the comparison. The comparison of Viking and InSight seasonal surface pressure variations does not show changes larger than \uffc2\uffb18\uffc2\uffa0Pa in the CO2 cycle. Such conclusions are supported by an analysis of Mars Science Laboratory (MSL) pressure data. Further comparisons with images of the south seasonal cap taken by the Viking 2 orbiter and MARCI camera do not display significant changes in the dynamics of this cap over a 40\uffc2\uffa0year period. Only a possible larger extension of the North Cap after the global storm of MY 34 is observed, but the physical mechanisms behind this anomaly are not well determined. Finally, the first comparison of MSL and InSight pressure data suggests a pressure deficit at Gale crater during southern summer, possibly resulting from a large presence of dust suspended within the crater.

", "keywords": ["Atmospheric sciences", "550", "Astronomy", "Atmosphere (unit)", "FOS: Mechanical engineering", "Library science", "Oceanography", "01 natural sciences", "CO2 ice", "pressure", "Mars Exploration Program", "Engineering", "Surface pressure", "Storm", "Martian Climate", "Space Suit Design and Ergonomics for EVA", "Martian Atmosphere", "Earth and Planetary Astrophysics (astro-ph.EP)", "Climatology", "Global and Planetary Change", "Geography", "Martian Surface", "Physics", "Geology", "Impact crater", "Condensed matter physics", "Anomaly (physics)", "World Wide Web", "Algorithm", "Satellite Observations", "Residual", "Physical Sciences", "Exploration and Study of Mars", "Astrophysics - Instrumentation and Methods for Astrophysics", "Research Article", "FOS: Physical sciences", "Mars", "Aerospace Engineering", "Pressure gradient", "Environmental science", "[SDU] Sciences of the Universe [physics]", "atmospheric mass", "Meteorology", "Orbiter", "0103 physical sciences", "Instrumentation and Methods for Astrophysics (astro-ph.IM)", "Formation and Evolution of the Solar System", "0105 earth and related environmental sciences", "Pressure system", "CO 2 ice", "Astronomy and Astrophysics", "FOS: Earth and related environmental sciences", "Astrobiology", "Computer science", "Physics and Astronomy", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "Global Methane Emissions and Impacts", "Environmental Science", "cap sublimation", "Water on Mars", "Astrophysics - Earth and Planetary Astrophysics"]}, "links": [{"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2022JE007190"}, {"href": "https://doi.org/10.1029/2022je007190"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Planets", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2022je007190", "name": "item", "description": "10.1029/2022je007190", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2022je007190"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-25T00:00:00Z"}}, {"id": "10.1038/s41467-017-00114-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:19:22Z", "type": "Journal Article", "created": "2017-07-17", "title": "Recent increases in terrestrial carbon uptake at little cost to the water cycle", "description": "Abstract

Quantifying the responses of the coupled carbon and water cycles to current global warming and rising atmospheric CO2 concentration is crucial for predicting and adapting to climate changes. Here we show that terrestrial carbon uptake (i.e. gross primary production) increased significantly from 1982 to 2011 using a combination of ground-based and remotely sensed land and atmospheric observations. Importantly, we find that the terrestrial carbon uptake increase is not accompanied by a proportional increase in water use (i.e. evapotranspiration) but is largely (about 90%) driven by increased carbon uptake per unit of water use, i.e. water use efficiency. The increased water use efficiency is positively related to rising CO2 concentration and increased canopy leaf area index, and negatively influenced by increased vapour pressure deficits. Our findings suggest that rising atmospheric CO2 concentration has caused a shift in terrestrial water economics of carbon uptake.

", "keywords": ["Atmospheric sciences", "GLOBAL-SCALE", "Climate Change and Variability Research", "02 engineering and technology", "7. Clean energy", "01 natural sciences", "Terrestrial ecosystem", "Carbon fibers", "Climate change", "Terrestrial plant", "Global and Planetary Change", "CLIMATE-CHANGE", "EVAPOTRANSPIRATION", "Evapotranspiration", "Primary production", "Ecology", "Global warming", "Q", "TRANSPIRATION", "Composite number", "Geology", "Carbon cycle", "6. Clean water", "Physical Sciences", "8. Economic growth", "DIOXIDE", "Water-use efficiency", "Composite material", "Atmospheric carbon cycle", "Science", "Carbon dioxide in Earth's atmosphere", "STOMATAL CONDUCTANCE", "0207 environmental engineering", "Article", "Environmental science", "USE EFFICIENCY", "ATMOSPHERIC CO2", "Irrigation", "Biology", "Ecosystem", "0105 earth and related environmental sciences", "Global Forest Drought Response and Climate Change", "FOS: Earth and related environmental sciences", "15. Life on land", "TRENDS", "Materials science", "Carbon dioxide", "13. Climate action", "Earth and Environmental Sciences", "FOS: Biological sciences", "Environmental Science", "Global Methane Emissions and Impacts", "VEGETATION", "Water cycle", "Climate Modeling", "Water use"]}, "links": [{"href": "https://www.nature.com/articles/s41467-017-00114-5.pdf"}, {"href": "https://doi.org/10.1038/s41467-017-00114-5"}, {"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/s41467-017-00114-5", "name": "item", "description": "10.1038/s41467-017-00114-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41467-017-00114-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-07-24T00:00:00Z"}}, {"id": "10.1038/s41467-019-12976-y", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:19:23Z", "type": "Journal Article", "created": "2019-11-01", "title": "Seasonal dynamics of stem N2O exchange follow the physiological activity of boreal trees", "description": "Abstract

The 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": "10.1186/s40793-020-00354-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:21:27Z", "type": "Journal Article", "created": "2020-03-02", "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": "Abstract Background

Anaerobic digestion (AD) of protein-rich grass silage was performed in experimental two-stage two-phase biogas reactor systems at low vs. increased organic loading rates (OLRs) under mesophilic (37\uffe2\uff80\uff89\uffc2\uffb0C) and thermophilic (55\uffe2\uff80\uff89\uffc2\uffb0C) 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.

Results

In total, 78 bacterial and archaeal MAGs representing the most abundant members of the communities, and featuring defined quality criteria were selected and characterized in detail. Determination of MAG abundances under the tested conditions by mapping of the obtained metagenome sequence reads to the MAGs revealed that MAG abundance profiles were mainly shaped by the temperature but also by the OLR. However, the OLR effect was more pronounced for the mesophilic systems as compared to the thermophilic ones. In contrast, metatranscriptome mapping to MAGs subsequently normalized to MAG abundances showed that under thermophilic conditions, MAGs respond to increased OLRs by shifting their transcriptional activities mainly without adjusting their proliferation rates. This is a clear difference compared to the behavior of the microbiome under mesophilic conditions. Here, the response to increased OLRs involved adjusting of proliferation rates and corresponding transcriptional activities. The analysis led to the identification of MAGs positively responding to increased OLRs. The most outstanding MAGs in this regard, obviously well adapted to higher OLRs and/or associated conditions, were assigned to the order Clostridiales (Acetivibrio sp.) for the mesophilic biofilm and the orders Bacteroidales (Prevotella sp. and an unknown species), Lachnospirales (Herbinix sp. and Kineothrix sp.) and Clostridiales (Clostridium sp.) for the thermophilic biofilm. Genome-based metabolic reconstruction and transcriptional profiling revealed that positively responding MAGs mainly are involved in hydrolysis of grass silage, acidogenesis and / or\uffc2\uffa0acetogenesis.

Conclusions

An integrated -omics approach enabled the identification of new AD biofilm keystone species featuring outstanding performance under stress conditions such as increased OLRs. Genome-based knowledge on the metabolic potential and transcriptional activity of responsive microbiome members will contribute to the development of improved microbiological AD management strategies for biomethanation of renewable biomass.

", "keywords": ["Integrated -omics", "Bioconversion", "0301 basic medicine", "570", "Polyomics", "Integrated-omics", "Biogas", "Microbiology", "7. Clean energy", "03 medical and health sciences", "Anaerobic digestion", "GE1-350", "2. Zero hunger", "0303 health sciences", "Metagenome assembled genomes", "Microbial community structure", "15. Life on land", "QR1-502", "6. Clean water", "3. Good health", "Environmental sciences", "Metagenome assembled genomes", " Integrated -omics", " Polyomics", " Anaerobic digestion", " Biogas", " Bioconversion", " Microbial community structure", " Methane", " Metabolic activity", "13. Climate action", "Metabolic activity", "Methane", "Research Article"]}, "links": [{"href": "http://link.springer.com/content/pdf/10.1186/s40793-020-00354-x.pdf"}, {"href": "https://doi.org/10.1186/s40793-020-00354-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Microbiome", "name": "related record", "description": "related record", "type": "application/json"}, {"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": {"date": "2020-03-02T00:00:00Z"}}, {"id": "10.1038/srep37402", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:19:32Z", "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": "Abstract

The 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": {"license": "Open Access", "updated": "2026-06-27T16:19:33Z", "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": "2026-06-27T16:19:50Z", "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": "Significance

Methane 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.2019672118", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:19:50Z", "type": "Journal Article", "created": "2021-03-01", "title": "Source apportionment of methane escaping the subsea permafrost system in the outer Eurasian Arctic Shelf", "description": "Significance

Extensive release of methane from sediments of the world\uffe2\uff80\uff99s largest continental shelf, the East Siberian Arctic Ocean (ESAO), is one of the few Earth system processes that can cause a net transfer of carbon from land/ocean to the atmosphere and thus amplify global warming on the timescale of this century. An important gap in our current knowledge concerns the contributions of different subsea pools to the observed methane releases. This knowledge is a prerequisite to robust predictions on how these releases will develop in the future. Triple-isotope\uffe2\uff80\uff93based fingerprinting of the origin of the highly elevated ESAO methane levels points to a limited contribution from shallow microbial sources and instead a dominating contribution from a deep thermogenic pool. 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. 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": {"license": "Open Access", "updated": "2026-06-27T16:19:51Z", "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/bjn19780043", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-06-27T16:19:51Z", "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/bjn2003932", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:19:51Z", "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/bjn19690092", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:19:51Z", "type": "Journal Article", "created": "2005-05-19", "title": "Methane Production And Soluble Carbohydrates In The Rumen Of Sheep In Relation To The Time Of Feeding And The Effects Of Short-Term Intraruminal Infusions Of Unsaturated Fatty Acids", "description": "

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/bjn20051517", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:19:51Z", "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": "10.1080/00039420215633", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-06-27T16:19:52Z", "type": "Journal Article", "created": "2003-10-02", "title": "Rumen Fermentation And Nitrogen Balance Of Lambs Fed Diets Containing Plant Extracts Rich In Tannins And Saponins, And Associated Emissions Of Nitrogen And Methane", "description": "Tannins were added to experimental diets at levels of 1 and 2 g/kg DM (hydrolysable tannins; Castanea sativa wood extract) and saponins at 2 and 30 mg/kg DM (sarsaponin; Yucca schidigera extract). These levels were far below thresholds expected to be adverse in ruminants. Effects were measured in lambs by comparison with unsupplemented control diets calculated to be either deficient (10%) or adequate in protein. The diets consisted of hay, concentrate (1:1) and extra wheat starch with increasing body weight. Ruminal pH, VFA concentration, protozoa count and apparent digestibilities of organic matter and fibre did not differ among treatments. The low tannin dose significantly decreased bacteria count compared to the high saponin dose. Saponin supplementation and the high tannin dose showed some potential to reduce ruminal ammonia concentration. This was associated with weak trends towards lower urine N excretion (only tannins) and ammonia emission from manure. Methane release was increased by the low tannin dose compared to the unsupplemented control. Diet effects on heat production were not systematic. In conclusion, the extracts rich in tannins or saponins gave only slight indications for either increased body nitrogen retention or reduced nitrogen emission. However, effects might have been larger with more pronounced dietary protein deficit.", "keywords": ["Male", "2. Zero hunger", "Rumen", "Sheep", "Dose-Response Relationship", " Drug", "Nitrogen", "Plant Extracts", "0402 animal and dairy science", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "Saponins", "Fatty Acids", " Volatile", "Animal Feed", "6. Clean water", "Fermentation", "Animals", "Animal Nutritional Physiological Phenomena", "Digestion", "Dietary Proteins", "Methane", "Tannins"], "contacts": [{"organization": "Michael Kreuzer, B.J. Sliwinski, A. Machm\u00fcller, H. R. Wettstein,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1080/00039420215633"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Archiv%20f%C3%BCr%20Tierernaehrung", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1080/00039420215633", "name": "item", "description": "10.1080/00039420215633", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1080/00039420215633"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-12-01T00:00:00Z"}}, {"id": "10.1111/gcb.70071", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:20:40Z", "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": "ABSTRACT

Rapid 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.The 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": "10.1111/gcb.16137", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:20:39Z", "type": "Journal Article", "created": "2022-03-14", "title": "Reduced methane emissions in former permafrost soils driven by vegetation and microbial changes following drainage", "description": "Abstract

In 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.Salt marshes have the ability to store large amounts of \uffe2\uff80\uff98blue carbon\uffe2\uff80\uff99, potentially mitigating some of the effects of climate change. Salt marsh carbon storage may be partially offset by emissions of CH4, a highly potent greenhouse gas. Sea level rise and invasive vegetation may cause shifts between different elevation and vegetation zones in salt marsh ecosystems. Elevation zones have distinct soil properties, plant traits and rhizosphere characteristics, which affect CH4 fluxes. We investigated differences in CH4 emissions between four elevation zones (mudflat, Spartina alterniflora, Spartina patens and invasive Phragmites australis) typical of salt marshes in the northern Northwest Atlantic. CH4 emissions were significantly higher from the S. alterniflora zone (17.7 \uffc2\uffb1 9.7 mg C m\uffe2\uff88\uff922h\uffe2\uff88\uff921) compared to the other three zones, where emissions were negligible (<0.3 mg C m\uffe2\uff88\uff922h\uffe2\uff88\uff921). These emissions were high for salt marshes and were similar to those typically found in oligohaline marshes with lower salinities. CH4 fluxes were significantly correlated with soil properties (salinity, water table depth, bulk density and temperature), plant traits (rhizome volume and biomass, root volume and dead biomass volume all at 0\uffe2\uff80\uff9315 cm) and CO2 fluxes. The relationships between CH4 emissions, and rhizome and root volume suggest that the aerenchyma tissues in these plants may be a major transport mechanism of CH4 from anoxic soils to the atmosphere. This may have major implications for the mitigation potential carbon sink from salt marshes globally, especially as S. alterniflora is widespread. This study shows CH4 fluxes can vary over orders of magnitude from different vegetation in the same system, therefore, specific emissions factors may need to be used in future climate models and for more accurate carbon budgeting depending on vegetation type.

", "keywords": ["13. Climate action", "salt marsh", " methane", " elevation zone", " spartina alterniflora", " spartina patens", " mudflat", " phragmites australis", " quebec", " st lawrence river", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1088/2752-664x/ac706a"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%3A%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/2752-664x/ac706a", "name": "item", "description": "10.1088/2752-664x/ac706a", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/2752-664x/ac706a"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-08-30T00:00:00Z"}}, {"id": "10.1093/femsec/fiad145", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:20:10Z", "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": "Abstract

Climate 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.Abstract. Boreal forest soils are globally an important sink for methane (CH4), while these soils are also capable of emitting CH4 under favourable conditions. Soil wetness is a well-known driver of CH4 flux, and the wetness can be estimated with several terrain indices developed for the purpose. The aim of this study was to quantify the spatial variability of the forest floor CH4 flux with a topography-based upscaling method connecting the flux with its driving factors. We conducted spatially extensive forest floor CH4 flux and soil moisture measurements, complemented by ground vegetation classification, in a boreal pine forest. We then modelled the soil moisture with a random forest model using digital-elevation-model-derived topographic indices, based on which we upscaled the forest floor CH4 flux. The modelling was performed for two seasons: May\uffe2\uff80\uff93July and August\uffe2\uff80\uff93October. Additionally, we evaluated the number of flux measurement points needed to get an accurate estimate of the flux at the whole study site merely by averaging. Our results demonstrate high spatial heterogeneity in the forest floor CH4 flux resulting from the soil moisture variability as well as from the related ground vegetation. The mean measured CH4 flux at the sample points was \uffe2\uff88\uff925.07\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921 in May\uffe2\uff80\uff93July and \uffe2\uff88\uff928.67\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921 in August\uffe2\uff80\uff93October, while the modelled flux for the whole area was \uffe2\uff88\uff927.42 and \uffe2\uff88\uff929.91\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921 for the two seasons, respectively. The spatial variability in the soil moisture and consequently in the CH4 flux was higher in the early summer (modelled range from \uffe2\uff88\uff9212.3 to 6.19\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921) compared to the autumn period (range from \uffe2\uff88\uff9214.6 to \uffe2\uff88\uff922.12\uffe2\uff80\uff89\uffc2\uffb5mol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89h\uffe2\uff88\uff921), and overall the CH4 uptake rate was higher in autumn compared to early summer. In the early summer there were patches emitting high amounts of CH4; however, these wet patches got drier and smaller in size towards the autumn, changing their dynamics to CH4 uptake. The mean values of the measured and modelled CH4 fluxes for the sample point locations were similar, indicating that the model was able to reproduce the results. For the whole site, upscaling predicted stronger CH4 uptake compared to simply averaging over the sample points. The results highlight the small-scale spatial variability of the boreal forest floor CH4 flux and the importance of soil chamber placement in order to obtain spatially representative CH4 flux results. To predict the CH4 fluxes over large areas more reliably, the locations of the sample points should be selected based on the spatial variability of the driving parameters, in addition to linking the measured fluxes with the parameters.

", "keywords": ["QE1-996.5", "BOREAL FEN", "Ecology", "methane", "EDDY COVARIANCE", "NITROUS-OXIDE", "Geology", "15. Life on land", "ATMOSPHERE", "01 natural sciences", "forest soils", "Environmental sciences", "SOIL", "CARBON-DIOXIDE", "TEMPERATE FOREST", "Life", "13. Climate action", "QH501-531", "CH4 EMISSIONS", "EXCHANGE", "CHAMBER", "Geosciences", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://bg.copernicus.org/articles/18/2003/2021/bg-18-2003-2021.pdf"}, {"href": "https://doi.org/10.5194/bg-18-2003-2021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-18-2003-2021", "name": "item", "description": "10.5194/bg-18-2003-2021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-18-2003-2021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-03-19T00:00:00Z"}}, {"id": "10.1093/jas/skab275", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:20:12Z", "type": "Journal Article", "created": "2021-10-01", "title": "Effect of divergence in residual methane emissions on feed intake and efficiency, growth and carcass performance, and indices of rumen fermentation and methane emissions in finishing beef cattle.", "description": "Abstract

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 (&gt;0.5 SD above the mean), medium RME (\uffc2\uffb10.5 SD above/below the mean), and low RME (&gt;0.5 SD below the mean). Low RME animals produced 17.6% and 30.4% less (P &lt; 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 &lt; 0.05) with DMI, growth, feed efficiency, and carcass output. High RME had lower (P &lt; 0.05) ruminal propionate compared with low RME animals and increased (P &lt; 0.05) butyrate compared with medium and low RME animals. Propionate was negatively associated (P &lt; 0.05) with all methane traits. Greater acetate:propionate ratio was associated with higher RME (r = 0.18; P &lt; 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": "2026-06-27T16:20:18Z", "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/gcb.16394", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:20:39Z", "type": "Journal Article", "created": "2022-08-17", "title": "Lowering water table reduces carbon sink strength and carbon stocks in northern peatlands", "description": "Abstract

Peatlands at high latitudes have accumulated >400\uffe2\uff80\uff89Pg carbon (C) because saturated soil and cold temperatures suppress C decomposition. This substantial amount of C in Arctic and Boreal peatlands is potentially subject to increased decomposition if the water table (WT) decreases due to climate change, including permafrost thaw\uffe2\uff80\uff90related drying. Here, we optimize a version of the Organizing Carbon and Hydrology In Dynamic Ecosystems model (ORCHIDEE\uffe2\uff80\uff90PCH4) using site\uffe2\uff80\uff90specific observations to investigate changes in CO2 and CH4 fluxes as well as C stock responses to an experimentally manipulated decrease of WT at six northern peatlands. The unmanipulated control peatlands, with the WT <20\uffe2\uff80\uff89cm on average (seasonal max up to 45\uffe2\uff80\uff89cm) below the surface, currently act as C sinks in most years (58\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff8934\uffe2\uff80\uff89g C\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffc2\uffa0year\uffe2\uff88\uff921; including 6\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff897\uffe2\uff80\uff89g C\uffe2\uff80\uff93CH4 m\uffe2\uff88\uff922\uffc2\uffa0year\uffe2\uff88\uff921 emission). We found, however, that lowering the WT by 10\uffe2\uff80\uff89cm reduced the CO2 sink by 13\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff8915\uffe2\uff80\uff89g\uffe2\uff80\uff89C\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffc2\uffa0year\uffe2\uff88\uff921 and decreased CH4 emission by 4\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff894\uffe2\uff80\uff89g CH4 m\uffe2\uff88\uff922\uffc2\uffa0year\uffe2\uff88\uff921, thus accumulating less C over 100\uffe2\uff80\uff89years (0.2\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff890.2\uffe2\uff80\uff89kg\uffe2\uff80\uff89C\uffe2\uff80\uff89m\uffe2\uff88\uff922). Yet, the reduced emission of CH4, which has a larger greenhouse warming potential, resulted in a net decrease in greenhouse gas balance by 310\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff89360\uffe2\uff80\uff89g\uffe2\uff80\uff89CO2\uffe2\uff80\uff90eq\uffc2\uffa0m\uffe2\uff88\uff922\uffc2\uffa0year\uffe2\uff88\uff921. Peatlands with the initial WT close to the soil surface were more vulnerable to C loss: Non\uffe2\uff80\uff90permafrost peatlands lost >2\uffe2\uff80\uff89kg\uffe2\uff80\uff89C\uffe2\uff80\uff89m\uffe2\uff88\uff922 over 100\uffe2\uff80\uff89years when WT is lowered by 50\uffe2\uff80\uff89cm, while permafrost peatlands temporally switched from C sinks to sources. These results highlight that reductions in C storage capacity in response to drying of northern peatlands are offset in part by reduced CH4 emissions, thus slightly reducing the positive carbon climate feedbacks of peatlands under a warmer and drier future climate scenario.The 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.13737", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:20:37Z", "type": "Journal Article", "created": "2017-05-02", "title": "Higher yields and lower methane emissions with new rice cultivars", "description": "Abstract

Breeding 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.12347", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:20:36Z", "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": "Abstract

Rapid, 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.12810", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-06-27T16:20:36Z", "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": "Abstract

We 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": {"license": "Closed Access", "updated": "2026-06-27T16:20:37Z", "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": "Abstract

Winter 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.13637", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:20:37Z", "type": "Journal Article", "created": "2017-01-30", "title": "Long-Term No-Till And Stover Retention Each Decrease The Global Warming Potential Of Irrigated Continuous Corn", "description": "Abstract

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": "10.1111/geb.12928", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:20:42Z", "type": "Journal Article", "created": "2019-05-14", "title": "Global drivers of methane oxidation and denitrifying gene distribution in drylands", "description": "AbstractAim

Microorganisms carrying pmoA and nosZ genes are major drivers of methane and nitrous oxide fluxes from soils. However, most studies on these organisms have been conducted in mesic ecosystems; therefore, little is known about the factors driving their distribution in drylands, the largest biome on Earth. We conducted a global survey to evaluate the role of climate\uffe2\uff80\uff90 and soil\uffe2\uff80\uff90related variables as predictors of the richness, abundance and community structure of bacteria carrying pmoA and nosZ genes.

Location

Eighty dryland ecosystems distributed worldwide.

Time period

From February 2006 to December 2011.

Major taxa studied

Methanotrophic (carrying the pmoA gene) and denitrifiying (carrying the nosZ gene) bacteria.

Methods

We used data from a field survey and structural equation modelling to evaluate the direct and indirect effects of climatic (aridity, rainfall seasonality and mean annual temperature) and soil (organic carbon, pH and texture) variables on the total abundance, richness and community structure of microorganisms carrying pmoA and nosZ genes.

Results

Taxa related to Methylococcus capsulatus or Methylocapsa sp., often associated with mesic environments, were common in global drylands. The abundance and richness of methanotrophs were not associated with climate or soil properties. However, mean annual temperature, rainfall seasonality, organic C, pH and sand content were highly correlated with their community structure. Aridity and soil variables, such as sand content and pH, were correlated with the abundance, community structure and richness of the nosZ bacterial community.

Main conclusions

Our study provides new insights into the drivers of the abundance, richness and community structure of soil microorganisms carrying pmoA and nosZ genes in drylands worldwide. We highlight how ongoing climate change will alter the structure of soil microorganisms, which might affect the net CH4 exchange and will probably reduce the capacity of dryland soils to carry out the final step of denitrification, favouring net N2O emissions.