{"type": "FeatureCollection", "features": [{"id": "3b08f0fc-f209-425f-86e1-f106f29f4ee6", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[5.81, 47.26], [5.81, 54.76], [15.77, 54.76], [15.77, 47.26], [5.81, 47.26]]]}, "properties": {"themes": [{"concepts": [{"id": "farming"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "climate"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "Winter wheat"}, {"id": "yield development"}, {"id": "nitrogen fertilization experiments"}, {"id": "climate change"}, {"id": "climate effects"}, {"id": "phenology"}, {"id": "meta-analysis"}, {"id": "mixed-effect analysis"}, {"id": "soil types"}, {"id": "soil quality rating"}, {"id": "opendata"}], "scheme": "Individual"}, {"concepts": [{"id": "Climate change impact"}, {"id": "climatic change"}, {"id": "environmental impact"}, {"id": "environmental statistics"}, {"id": "data analysis"}, {"id": "statistical analysis"}, {"id": "field experiment"}, {"id": "soil"}, {"id": "heat stress"}, {"id": "water stress"}, {"id": "Land use"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}, {"concepts": [{"id": "Boden"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}], "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 research activities of the DFG funded project 'Data-Meta Analysis to assess the productivity development of cultivated plants'\"(Grant number: Stu 127/19-3) at the Institute of Horticultural Production Systems of the Faculty of Natural Sciences at the Leibniz Universit\u00e4t Hanover (LUH). Although every care has been taken in preparing and testing the data, the above mentioned project and the BonaRes Data Centre cannot guarantee that the data are correct; neither does the above mentioned project 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 above mentioned project and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data.", "updated": "2023-12-12", "type": "Dataset", "created": "2020-01-28", "language": "eng", "title": "Dataset of winter wheat yields in Germany between 1958 and 2015 from N-fertilization experiments - TRIAL_SITES", "description": "This data set (TRIAL_SITES) is the starting point of a larger data set that contains data and information used in the study \u201cYield development of German winter wheat between 1958 and 2015\u201d in the Project \u201cData-Meta Analysis to assess the productivity development of cultivated plants\u201d funded by the DFG. This starting table contains geographical and environmental information about the experimental sites at which the N-fertilisation experiments were conducted. Amon other topics, this data set can be mainly  used to analyse the impact of climatic changes on the development of winter wheat in Germany.\n\nThe data set comprises following data:\n- Winter wheat (Triticum aestivum) yields and nitrogen application amounts from nitrogen fertilization experiments of variable duration (1-6 years) carried out at 43 locations across Germany, between 1958 and 2015, and found in 34 different sources in the literature.\n- The derived maximum yields (Ymax) and optimal nitrogen amounts (Nopt) from the nitrogen experiments, function coefficients, and statistics.\n- Geographical information (latitude, longitude, altitude) and other site specific information of the experimental sites (soil type, soil yield potential, mean annual temperature, mean annual precipitation, mean annual climatic water balance, soil climate region, cultivation region).\n- Processed phenological and climatic data for each experimental site.", "formats": [{"name": "CSV"}], "keywords": ["climate", "Winter wheat", "yield development", "nitrogen fertilization experiments", "climate change", "climate effects", "phenology", "meta-analysis", "mixed-effect analysis", "soil types", "soil quality rating", "opendata", "Climate change impact", "climatic change", "environmental impact", "environmental statistics", "data analysis", "statistical analysis", "field experiment", "soil", "heat stress", "water stress", "Land use", "Boden"], "contacts": [{"name": "BonaRes Data Centre", "organization": "Leibniz Centre for Agricultural Landscape Research (ZALF)", "position": "Research Platform 'Data' - WG Geodata", "roles": ["publisher"], "phones": [{"value": "+49 33432 82 171"}], "emails": [{"value": "bonares-datenzentrum@zalf.de"}], "addresses": [{"deliveryPoint": ["Eberswalder Strasse 84"], "city": "M\u00fcncheberg", "administrativeArea": "Brandenburg", "postalCode": "15374", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Eric B\u00f6necke", "organization": "Leibniz University Hanover", "position": "Scientist", "roles": ["author"], "phones": [{"value": "+49 511 762-19269"}], "emails": [{"value": "boenecke@igzev.de, boenecke@gem.uni-hannover.de"}], "addresses": [{"deliveryPoint": ["Herrenh\u00e4user Strasse 2"], "city": "Hanover", "administrativeArea": "Lower Saxony", "postalCode": "30419", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Laura Breitsameter", "organization": "Leibniz University Hanover", "position": null, "roles": ["author"], "phones": [{"value": "+49 511 762-19269"}], "emails": [{"value": "breitsameter@igzev.de, boenecke@gem.uni-hannover.de"}], "addresses": [{"deliveryPoint": ["Herrenh\u00e4user Strasse 2"], "city": "Hanover", "administrativeArea": "Lower Saxony", "postalCode": "30419", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Nicolas Br\u00fcggeman", "organization": "Research Centre Julich", "position": "Professor", "roles": ["author"], "phones": [{"value": "+49 246 161 8643"}], "emails": [{"value": "n.brueggemann@fz-juelich.de"}], "addresses": [{"deliveryPoint": ["Wilhelm-Johnen-Stra\u00dfe"], "city": "Julich", "administrativeArea": "North Rhine-Westphalia", "postalCode": "52428", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Till Feike", "organization": "Julius Kuehn-Institute", "position": "Scientist", "roles": ["author"], "phones": [{"value": "+49 332 034 8312"}], "emails": [{"value": "til.feike@julius-kuehn.de"}], "addresses": [{"deliveryPoint": ["Stahnsdorfer Damm 81"], "city": "Kleinmachnow", "administrativeArea": "Brandenburg", "postalCode": "14532", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Henning Kage", "organization": "Christian-Albrechts-University Kiel", "position": "Professor", "roles": ["author"], "phones": [{"value": "+49 431 880 3472"}], "emails": [{"value": "kage@pflanzenbau.uni-kiel.de"}], "addresses": [{"deliveryPoint": ["Hermann-Rodewald-Str. 9"], "city": "Kiel", "administrativeArea": "Schleswig-Holstein", 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