{"type": "FeatureCollection", "features": [{"id": "18a9c2ec-e49d-4fcc-b16a-7bf61d54e26a", "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": "environment"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Boden"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}, {"concepts": [{"id": "opendata"}], "scheme": "Individual"}], "rights": "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 \non the data supplied, must contain an acknowledgement of the form: \"Data re-used from the BonaRes Data Centre www.bonares.de. This data were created as part of BonaRes Module A-Project - SIGNAL's research activities.\" \nAlthough every care has been taken in preparing and testing the data, BonaRes Module A - Project - SIGNAL and BonaRes Data Centre cannot guarantee that the data are correct; neither does BonaRes Module A - Project and BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage \narising from its use. The BonaRes Module A-Project-SIGNAL and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data. The access to this data is restricted during embargo time. If prior access is requested, contact \nthe data owner / author.", "updated": "2020-01-17", "type": "Dataset", "created": "2018-05-02", "language": "eng", "title": "BonaRes SIGNAL, Site: Mariensee and Reiffenhausen, plant nutrient availability (N,P,K,Ca,Mg), Nutrient response efficiency (N,P,K,Ca,Mg), Nutrient uptake (N,P,K,Ca,Mg), Nutrient uptake and use efficiency (N,P,K,Ca,Mg)", "description": "This data was collected in grassland agroforestry (=alley cropping of willow strips and grassland strips) at Reiffenhausen/Germany ((Salix schwerinii x S. viminalis) x S. viminalis and grass-clover mixture) and Mariensee/Germany (S. schwerinii x S. viminalis and grassland mixture consisting of Lolium perenne, Festuca pratensis, Phleum pratense, Poa pratensis) during 2016. Data was taken at 3 replicates (Mariensee)/ 4 replicates (Reiffenhausen) each in the tree strip component (=Tree) of agroforestry, the grassland component of agroforestry at different distances from the tree strip (1m, 4m, 7m) and at the conventional grassland (=Conv) adjacent to grassland agroforestry. Components of agroforestry were also weighted according to their field size representation (=AF_weight Reiffenhausen: Tree 0.46, 1m 0.31, 4m 0.23; Mariensee Tree 0.35, 1m 0.23, 4m 0.21, 7m 0.21). We measured plant-available nitrogen with the buried bag method (Page et al. 1994 Methods of soil analysis), plant-available phosphorus with resin+bicarbonate extraction (Cross and Schlesinger 1995 Geoderma), plant-available Ca, Mg, K by percolation of soil with unbuffered 1 mol L-1 NH4Cl followed by analysis of percolate with inductively coupled plasma-atomic emission spectrometer (ICP-AES; iCAP 6300 Duo VIEW ICP Spectrometer, Thermo Fischer Scientific GmbH, Dreieich, Germany), nutrient response efficiency (NRE) as productivity divided by plant available nutrient (Bridgham et al. 1995 American Naturalist; productivity data provided by Malec et al. for Reiffenhausen and Swieter et al for Mariensee). Plant uptake was calculated as productivity x plant nutrient concentrations (C/N analyzer (Elementar Vario El; Elementar Analysis Systems GmbH, Hanau, Germany) or ICP); Nutrient uptake efficiency as nutrient uptake (productivity x plant nutrient concentrations) / available nutrient; Nutrient use efficiency as productivity/ plant nutrient uptake (productivity x plant nutrient concentrations).", "formats": [{"name": "CSV"}], "keywords": ["nutrient availability", "biogeochemical cycle", "nitrogen cycle", "nutrient response efficiency", "net nitrogen mineralization", "agroforestry", "grassland", "nutrient uptake efficiency", "nutrient use efficiency", "Boden", "opendata"], "contacts": [{"name": "Leonie G\u00f6bel", "organization": "University of Goettingen, PTS", "position": null, "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "lgoebel@gwdg.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Marife D. Corre", "organization": "University of Goettingen, PTS", "position": null, "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "mcorre@gwdg.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "BonaRes Data Centre", "organization": "Leibniz Centre for Agricultural Landscape Research (ZALF)", "position": "Research Platform Data", "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": "Edzo Veldkamp", "organization": "University of Goettingen, PTS", "position": null, "roles": ["projectLeader"], "phones": [{"value": null}], "emails": [{"value": "eveldka@gwdg.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Marcus Schmidt", "organization": "University of Goettingen, PTS", "position": null, "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "mschmidh@gwdg.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Edzo Veldkamp", "organization": "University of Goettingen, PTS", "position": null, "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "eveldka@gwdg.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"organization": "University of Goettingen, PTS", "roles": ["contributor"]}]}, "links": [{"href": "https://maps.bonares.de/mapapps/resources/apps/bonares/index.html?lang=en&doi=https://doi.org/10.20387/BonaRes-S84Z-CHBT", "rel": "download"}, {"rel": "self", "type": "application/geo+json", "title": "18a9c2ec-e49d-4fcc-b16a-7bf61d54e26a", "name": "item", "description": "18a9c2ec-e49d-4fcc-b16a-7bf61d54e26a", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/18a9c2ec-e49d-4fcc-b16a-7bf61d54e26a"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-17T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=nutrient+uptake+efficiency&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=nutrient+uptake+efficiency&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=nutrient+uptake+efficiency&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=nutrient+uptake+efficiency&offset=1", "hreflang": "en-US"}], "numberMatched": 1, "numberReturned": 1, "distributedFeatures": [], "timeStamp": "2026-07-27T05:05:20.643920Z"}