{"type": "FeatureCollection", "features": [{"id": "8dca7abd-3140-410b-ab91-a566ae9d6305", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[9.98, 54.31], [9.98, 54.31], [9.98, 54.31], [9.98, 54.31], [9.98, 54.31]]]}, "properties": {"themes": [{"concepts": [{"id": "farming"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Soil"}, {"id": "degradation"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "litter bag"}, {"id": "tea bag"}], "scheme": "Individual"}, {"concepts": [{"id": "Boden"}, {"id": "Litter decomposition"}, {"id": "agriculture"}, {"id": "crop production"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}], "license": "CC BY", "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 Inplamint's research activities.\" Although every care has been taken in preparing and testing the data, the Inplamint and the BonaRes Data Centre cannot guarantee that the data are correct; neither does the Inplamint 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 Inplamint and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data.", "updated": "2023-06-01", "type": "Dataset", "created": "2021-05-26", "language": "eng", "title": "2019 Litter Bag Experiment UKiel Decomposition data", "description": "In 2018/19 three different potential soil amendments (faba bean straw, winter wheat straw and spruce sawdust) grinded to 1-5 mm have been buried in nylon tea bags 10 cm deep in 20L pots. The soil used was extracted shortly before from a nearby field under agricultural use (1 month after harvest of faba beans). The bags were buried on 2018-08-17 and retrieved on 6 occasions until 2019-03-07. After cleaning and drying, dry matter of the remaining amendment in the bag was determined. Temperature was logged inside a pot, inside the facility (concrete soil) and outside in a tree (grassy soil).\n\nResearch domain: Plant Cultivation and Agricultural Technology\n\nResearch question: What are the parameters describing decomposition of the different amendments in time?", "formats": [{"name": "CSV"}], "keywords": ["Soil", "degradation", "litter bag", "tea bag", "Boden", "Litter decomposition", "agriculture", "crop production"], "contacts": [{"name": "Steffen Rothardt", "organization": "Christian-Albrechts-Universit\u00e4t zu Kiel", "position": null, "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "rothardt@pflanzenbau.uni-kiel.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": {"url": null, "protocol": null, "protocol_url": "", "name": "0000-0001-9236-5151", "name_url": "", "description": "ORCID", "description_url": "", "applicationprofile": null, "applicationprofile_url": "", "function": null}}]}, {"name": "Henning Kage", "organization": "Christian-Albrechts-Universit\u00e4t zu Kiel", "position": null, "roles": ["projectLeader"], "phones": [{"value": null}], "emails": [{"value": "kage@pflanzenbau.uni-kiel.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": null, "organization": "Leibniz Centre for Agricultural Landscape Research (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": null}]}, {"organization": "Christian-Albrechts-Universit\u00e4t zu Kiel", "roles": ["contributor"]}]}, "links": [{"href": "https://maps.bonares.de/mapapps/resources/apps/bonares/index.html?lang=en&mid=8dca7abd-3140-410b-ab91-a566ae9d6305", "rel": "information"}, {"href": "https://metadata.bonares.de:443/smartEditor/preview/PICT0132.JPG", "name": "preview", "description": "Web image thumbnail (URL)", "protocol": "WWW:LINK-1.0-http--image-thumbnail", "rel": "preview"}, {"rel": "self", "type": "application/geo+json", "title": "8dca7abd-3140-410b-ab91-a566ae9d6305", "name": "item", "description": "8dca7abd-3140-410b-ab91-a566ae9d6305", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/8dca7abd-3140-410b-ab91-a566ae9d6305"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-06-01T00:00:00Z"}}, {"id": "PMC7593201", "type": "Feature", "geometry": null, "properties": {"updated": "2026-08-26T16:24:48Z", "type": "Journal Article", "created": "2020-09-22", "title": "Background insect herbivory increases with local elevation but makes minor contribution to element cycling along natural gradients in the Subarctic", "description": "Abstract

Herbivores can exert major controls over biogeochemical cycling. As invertebrates are highly sensitive to temperature shifts (ectothermal), the abundances of insects in high\uffe2\uff80\uff90latitude systems, where climate warming is rapid, is expected to increase. In subarctic mountain birch forests, research has focussed on geometrid moth outbreaks, while the contribution of background insect herbivory (BIH) to elemental cycling is poorly constrained. In northern Sweden, we estimated BIH along 9 elevational gradients distributed across a gradient in regional elevation, temperature, and precipitation to allow evaluation of consistency in local versus regional variation. We converted foliar loss via BIH to fluxes of C, nitrogen (N), and phosphorus (P) from the birch canopy to the soil to compare with other relevant soil inputs of the same elements and assessed different abiotic and biotic drivers of the observed variability. We found that leaf area loss due to BIH was ~1.6% on average. This is comparable to estimates from tundra, but considerably lower than ecosystems at lower latitudes. The C, N, and P fluxes from canopy to soil associated with BIH were 1\uffe2\uff80\uff932 orders of magnitude lower than the soil input from senesced litter and external nutrient sources such as biological N fixation, atmospheric deposition of N, and P weathering estimated from the literature. Despite the minor contribution to overall elemental cycling in subarctic birch forests, the higher quality and earlier timing of the input of herbivore deposits to soils compared to senesced litter may make this contribution disproportionally important for various ecosystem functions. BIH increased significantly with leaf N content as well as local elevation along each transect, yet showed no significant relationship with temperature or humidity, nor the commonly used temperature proxy, absolute elevation. The lack of consistency between the local and regional elevational trends calls for caution when using elevation gradients as climate proxies.