{"type": "FeatureCollection", "features": [{"id": "10.1016/j.soilbio.2015.10.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:08Z", "type": "Journal Article", "created": "2015-11-10", "title": "Evidence For Denitrification As Main Source Of N2o Emission From Residue-Amended Soil", "description": "Catch crops, especially leguminous catch crops, may increase crop nitrogen (N) supply and decrease environmental impacts in cropping systems, but they may also stimulate nitrous oxide (N2O) emissions following spring incorporation. In this 28-day laboratory incubation study, we examined the carbon (C) and N dynamics and N2O evolution after simulated incorporation of residues from three catch crop species into a loamy sand soil, with variable soil moisture (40, 50 or 60% water-filled pore space (WFPS)). The catch crops include two leguminous (red clover and winter vetch) and one non-leguminous species (ryegrass). Plant material was placed in a discrete layer surrounded by soil in which the nitrate (NO3\u2212) pool was enriched with 15N to distinguish N2O derived from denitrification and nitrification. Net N mineralisation from leguminous catch crops was significant (30\u201348\u00a0mg\u00a0N\u00a0kg\u22121 soil, accounting for 41\u201356% of the added residue-N), whereas ryegrass incorporation resulted in net N immobilisation. The evolution of N2O was probably enhanced by N release from the residues, especially during the second week, which can explain the lower N2O evolution after application of ryegrass. Emission of N2O occurred at all moisture levels, but was higher at 50 and 60% WFPS than at 40% in soil with leguminous residues. The 15N enrichment of N2O indicated that denitrification was the dominant source independent of moisture level and residue type. We conclude that catch crop residues will stimulate N2O emissions via denitrification over a wide range of soil moisture conditions, but that emission levels may depend significantly on residue quality and soil moisture.", "keywords": ["Leguminous cover crop", "2. Zero hunger", "Nitrous oxide", "15N labelling", "Nutrient turnover", "Mineralisation", "04 agricultural and veterinary sciences", "incubation", "15. Life on land", "Air and water emissions", "Pasture and forage crops", "Crop combinations and interactions", "13. Climate action", "Farm nutrient management", "Denitrification", "0401 agriculture", " forestry", " and fisheries", "Incubation"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2015.10.008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2015.10.008", "name": "item", "description": "10.1016/j.soilbio.2015.10.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2015.10.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-01-01T00:00:00Z"}}, {"id": "da5d3973-513d-41ad-b1a2-44a32ddcb104", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[13.79, 53.38], [13.79, 53.38], [13.79, 53.38], [13.79, 53.38], [13.79, 53.38]]]}, "properties": {"themes": [{"concepts": [{"id": "farming"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Soil"}, {"id": "topsoil"}, {"id": "erosion"}, {"id": "Brassica napus"}, {"id": "soil types"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "opendata"}, {"id": "15N labelling"}, {"id": "15N recovery"}, {"id": "topsoil dilution"}], "scheme": "Individual"}, {"concepts": [{"id": "Boden"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}, {"concepts": [{"id": "Germany"}, {"id": "Brandenburg"}, {"id": "Uckermark"}, {"id": "Quillow"}, {"id": "Dedelow"}, {"id": "CarboZALF Site"}], "scheme": "individual"}], "rights": "Restrictions applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations or warnings on using the resource or metadata. 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": "2024-05-23", "type": "Dataset", "created": "2024-05-13", "language": "eng", "title": "Effect of mineral and organic fertilizer on N dynamics upon erosion-induced topsoil dilution - Stable isotope data (15N)", "description": "Stable isotope (15N) data and fertilizer recovery data of plant, bulk soil and the cPOM, fPOM and MAOM fractions. \n\nGeneral description see mother table: (https://doi.org/10.4228/zalf-4vvc-d715); Related datasets are listed in the metadata element 'Related Identifier'.\nDataset version 1.0", "formats": [{"name": "CSV"}], "keywords": ["Soil", "topsoil", "erosion", "Brassica napus", "soil types", "opendata", "15N labelling", "15N recovery", "topsoil dilution", "Boden", "Germany", "Brandenburg", "Uckermark", "Quillow", "Dedelow", "CarboZALF Site"], "contacts": [{"name": "Leibniz Centre for Agricultural Landscape 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"applicationprofile_url": "", "function": null}}]}, {"name": "Maire Holz", "organization": "Leibniz Centre for Agricultural Landscape Research", "position": null, "roles": ["projectLeader"], "phones": [{"value": null}], "emails": [{"value": "maire.holz@zalf.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": {"url": null, "protocol": null, "protocol_url": "", "name": "0000-0002-1825-2308", "name_url": "", "description": "ORCID", "description_url": "", "applicationprofile": null, "applicationprofile_url": "", "function": null}}]}, {"organization": "Leibniz Centre for Agricultural Landscape Research;Thu\u0308nen Institute of Climate-Smart Agriculture, Federal Research Institute for Rural Areas, Forestry and Fisheries", "roles": ["contributor"]}], "title_alternate": "Data collection: Part 3/4, table: Stable isotope data (15N)"}, "links": [{"href": 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"coordinates": [[[13.79, 53.38], [13.79, 53.38], [13.79, 53.38], [13.79, 53.38], [13.79, 53.38]]]}, "properties": {"themes": [{"concepts": [{"id": "farming"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Soil"}, {"id": "topsoil"}, {"id": "erosion"}, {"id": "Brassica napus"}, {"id": "soil types"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "opendata"}, {"id": "15N labelling"}, {"id": "15N recovery"}, {"id": "topsoil dilution"}], "scheme": "Individual"}, {"concepts": [{"id": "Boden"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}, {"concepts": [{"id": "Germany"}, {"id": "Brandenburg"}, {"id": "Uckermark"}, {"id": "Quillow"}, {"id": "Dedelow"}, {"id": "CarboZALF Site"}], "scheme": "individual"}], "rights": "Restrictions applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations or warnings on using the resource or metadata. 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": "2024-05-23", "type": "Dataset", "created": "2024-05-13", "language": "eng", "title": "Effect of mineral and organic fertilizer on N dynamics upon erosion-induced topsoil dilution", "description": "Erosion-induced topsoil dilution strongly affects cropland biogeochemistry and is associated with a negative effect on soil health and crop productivity. While its impact on soil C cycling has been widely recognized, there are few information about its impact on soil N cycling and N fertilizer dynamics. Here, we studied three factors potentially influencing N cycling and N fertilizer dynamics in cropping systems, namely: 1.) soil type, 2.) erosion-induced topsoil dilution and 3.) N fertilizer form in a full-factorial pot experiment using canola plants. We studied three erosion affected soil types (Luvisol, eroded Luvisol, calcaric Regosol) and performed topsoil dilution in all three soils by admixing 20% of the respective subsoil into its topsoil. N fertilizer dynamics was investigated using either mineral (calcium ammonium nitrate) and organic (biogas digestate) fertilizer, labeled with 15N. The fertilizer 15N recovery and the distribution of the fertilizer N in different soil fractions was quantified after plant maturity. Fertilizer N dynamics and utilization were influenced by all three factors investigated. 15N recovery in the plant-soil system was higher and fertilizer N utilization was lower in the treatments with diluted topsoil than in the non-diluted controls. Similarly, plants of the organic fertilizer N treatments took up significantly less fertilizer N in comparison to mineral fertilizer treatments. Both, topsoil dilution and organic fertilizer application promoted 15N recovery and N accumulation in the soil fractions, with strong differences between soil types. Our study reveals a noteworthy insight: topsoil dilution due to soil erosion has a negligible impact on N cycling and dynamics in the plant-soil system. The crucial factors influencing these processes are found to be the choice of fertilizer form and the specific soil type. Recognizing these aspects is essential for a precise and comprehensive assessment of the environmental continuum, emphasizing the novelty of our findings. This table contains the Index of the data collection.\n\nRelated datasets are listed in the metadata element 'Related Identifier'.\nDataset version 1.0", "formats": [{"name": "CSV"}], "keywords": ["Soil", "topsoil", "erosion", "Brassica napus", "soil types", "opendata", "15N labelling", "15N recovery", "topsoil dilution", "Boden", "Germany", "Brandenburg", "Uckermark", "Quillow", "Dedelow", "CarboZALF Site"], "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": [{"href": {"url": null, "protocol": null, "protocol_url": "", "name": 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