{"type": "FeatureCollection", "features": [{"id": "10.1007/s100210000025", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:14:55Z", "type": "Journal Article", "created": "2002-07-25", "title": "Controls On Soil Carbon Dioxide And Methane Fluxes In A Variety Of Taiga Forest Stands In Interior Alaska", "description": "CO2 and CH4 fluxes were monitored over 4 years in a range of taiga forests along the Tanana River in interior Alaska. Floodplain alder and white spruce sites and upland birch/aspen and white spruce sites were examined. Each site had control, fertilized, and sawdust amended plots; flux measurements began during the second treatment year. CO2 emissions decreased with successional age across the sites (alder, birch/aspen, and white spruce, in order of succession) regardless of landscape position. Although CO2 fluxes showed an exponential relationship with soil temperature, the response of CO2 production to moisture fit an asymptotic model. Of the manipulations, only N fertilization had an effect on CO2 flux, decreasing flux in the floodplain sites but increasing it in the birch/aspen site. Landscape position was the best predictor of CH4 flux. The two upland sites consumed CH4 at similar rates (approximately 0.5 mg C m\u22122 d\u22121), whereas the floodplain sites had lower consumption rates (0\u20130.3 mg C m\u22122 d\u22121). N fertilization and sawdust both inhibited CH4 consumption in the upland birch/aspen and floodplain spruce sites but not in the upland spruce site. The biological processes driving CO2 fluxes were sensitive to temperature, moisture, and vegetation, whereas CH4 fluxes were sensitive primarily to landscape position and biogeochemical disturbances. Hence, climate change effects on C-gas flux in taiga forest soils will depend on the relationship between soil temperature and moisture and the concomitant changes in soil nutrient pools and cycles.", "keywords": ["landscape-ecology", "Betulaceae-: Dicotyledones-", "flux-", "soil-nutrient-pools", "Coniferopsida-: Gymnospermae-", "Vascular-Plants", "forests-", "Environmental-Sciences)", "carbon-dioxide", "nitrogen-fertilizers", "01 natural sciences", "carbon-dioxide: emissions-", "nitrogen-: fertilization-", "vegetation-", "birch- (Betulaceae-)", "124-38-9: CARBON DIOXIDE", "Spermatophytes-", "Spermatophyta-", "74-82-8: METHANE", "Plantae-", "white-spruce (Coniferopsida-)", "successional-age", "boreal-forests", "environmental-temperature", "0105 earth and related environmental sciences", "taiga-forest-stands", "Angiosperms-", "Gymnosperms-", "Angiospermae-", "Plants-", "sawdust-", "methane-", "15. 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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. 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Reports, articles, papers, scientific and non - scientific works of any form, including tables, maps, or any other kind of output, in printed or electronic form, based in whole or in part on the data supplied, must contain an acknowledgement of the form: \"Data reused from the BonaRes Data Centre www.bonares.de. This data were created as part of the ZALF Datenerfassung's research activities.\" Although every care has been taken in preparing and testing the data, the ZALF Datenerfassung and the BonaRes Data Centre cannot guarantee that the data are correct; neither does the ZALF Datenerfassung and the BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage arising from its use. The ZALF Datenerfassung and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data.", "updated": "2025-07-21", "type": "Dataset", "created": "2025-06-12", "language": "eng", "title": "SaMS \u2013 Soils as Methane Sinks: Gas Fluxes of CH4 and CO2 in twelve forest soils in SW-Germany from 1998-2022 - chamber", "description": "This table contains the results of the conducted chamber measurements on all study sites. CH4 and CO2 chamber measurements were conducted next to passive soil gas samplers in 2021-2022. Six collars per plot were permanently installed and the measurements were repeated four to six times over a period of 1.5 years under different climatic conditions. Non-steady state chamber measurements of 2-5 min duration were conducted using a Greenhousegas Analyser (GGA, Microportable gas analyzers GLA131, ABB) and chambers equipped with a pressure equilibration vent and a pressure release plug to avoid pressure artefacts. Chamber measurements were typically less than 7 min so that fluxes could be calculated linearly. Non-linear concentration measurements were eliminated from flux calculation. Due to different technical restrictions at the plots we used three different sizes of chambers of 19 cm, 20 cm and 29.5 cm diameter and 7.5 cm, 6.3 cm and 9.3 cm height, respectively. This dataset was used in ConFluxPro for calibrating parameter variation and validation.\n\nGeneral description see mother table: (https://doi.org/10.4228/zalf-6k5z-wx25); Related datasets are listed in the metadata element 'Related Identifier'.\nDataset version 1.0", "formats": [{"name": "CSV"}], "keywords": ["Soil", "long-term experiments", "monitoring", "methane", "carbon dioxide", "forest soils", "opendata", "gas-fluxes", "longterm monitoring", "chamber measurement", "flux-gradient-method", "ConFluxPro", "CH4", "FGM", "Boden", "Germany", "Soutwest Germany", "Baden W\u00fcrttemberg"], "contacts": [{"name": "Leibniz Centre for Agricultural Landscape Research", "organization": "ZALF", "position": "Research Platform 'Data Analysis & Simulation' - Workgroup Research Data Management", "roles": ["publisher"], "phones": [{"value": "+49 33432 82 300"}], "emails": [{"value": "dataservice@zalf.de"}], "addresses": [{"deliveryPoint": ["Eberswalder Strasse 84"], "city": "M\u00fcncheberg", 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null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Andreas Schupp", "organization": "Forstliche Versuchs- und Forschungsanstalt Baden-W\u00fcrttemberg", "position": null, "roles": ["dataCollector"], "phones": [{"value": null}], "emails": [{"value": "Verena.Lang@forst.bwl.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Markus Wehrle", "organization": "Forstliche Versuchs- und Forschungsanstalt Baden-W\u00fcrttemberg", "position": null, "roles": ["dataCollector"], "phones": [{"value": null}], "emails": [{"value": "Verena.Lang@forst.bwl.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Raphael Habel", "organization": "Forstliche Versuchs- und Forschungsanstalt Baden-W\u00fcrttemberg", "position": null, "roles": ["researcher"], "phones": [{"value": null}], "emails": [{"value": "Verena.Lang@forst.bwl.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"organization": "Forstliche Versuchs- und Forschungsanstalt Baden-W\u00fcrttemberg", "roles": ["contributor"]}], "title_alternate": "Data collection: Part 2/9, table: chamber"}, "links": [{"href": "https://maps.bonares.de/mapapps/resources/apps/bonares/index.html?lang=en&mid=4865189c-aa24-4558-bffe-3aef04437920", "rel": "information"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/a98c094c-b602-4f48-8934-179041e5f06a", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "4865189c-aa24-4558-bffe-3aef04437920", "name": "item", "description": "4865189c-aa24-4558-bffe-3aef04437920", "href": 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Reports, articles, papers, scientific and non - scientific works of any form, including tables, maps, or any other kind of output, in printed or electronic form, based in whole or in part on the data supplied, must contain an acknowledgement of the form: \"Data reused from the BonaRes Data Centre www.bonares.de. This data were created as part of the ZALF Datenerfassung's research activities.\" Although every care has been taken in preparing and testing the data, the ZALF Datenerfassung and the BonaRes Data Centre cannot guarantee that the data are correct; neither does the ZALF Datenerfassung and the BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage arising from its use. The ZALF Datenerfassung and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data.", "updated": "2025-07-25", "type": "Dataset", "created": "2025-06-12", "language": "eng", "title": "SaMS \u2013 Soils as Methane Sinks: Gas Fluxes of CH4 and CO2 in twelve forest soils in SW-Germany from 1998-2022", "description": "Monthly concentration profiles of the soil gases CO2 and CH4 were measured in twelve forest soils in southwest Germany from 1998/2010 to 2022 (Maier et al. 2020). In the soil gas transport model ConFluxPro (Gartiser et al. 2025), gas fluxes are calculated using an inverse flux-gradient approach. To reduce uncertainties in the soil physical parameters, fluxes derived from the concentration profiles were calibrated with parallel chamber measurements. The resulting long-term measurement series of the soil gas fluxes CO2 and CH4 were additionally gap-filled and aggregated to annual mean values of methane uptake. This table contains the index of all tables forming this data collection.\n\nRelated datasets are listed in the metadata element 'Related Identifier'.\nDataset version 1.0", "formats": [{"name": "CSV"}], "keywords": ["Soil", "long-term experiments", "monitoring", "methane", "carbon dioxide", "forest soils", "opendata", "gas-fluxes", "longterm monitoring", "chamber measurement", "flux-gradient-method", "ConFluxPro", "CH4", "FGM", "Boden", "Germany", "Soutwest Germany", "Baden W\u00fcrttemberg"], "contacts": [{"name": "Leibniz Centre for Agricultural Landscape Research", "organization": "ZALF", "position": "Research Platform 'Data Analysis & Simulation' - Workgroup Research Data Management", "roles": ["publisher"], "phones": [{"value": "+49 33432 82 300"}], "emails": [{"value": "dataservice@zalf.de"}], "addresses": [{"deliveryPoint": ["Eberswalder Strasse 84"], "city": "M\u00fcncheberg", "administrativeArea": "Brandenburg", "postalCode": "15374", "country": "Germany"}], "links": 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