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The source data were shared by a wide range of data providers (see: https://www.isric.org/explore/wosis/wosis-contributing-institutions-and-experts).\nBeing dynamic, the contents of 'wosis_latest' will change once new point data are acquired, cleansed and standardised, additional soil properties are considered, and/or when possible amendments are required.\nStatic snapshots of 'wosis_latest' are released at irregular intervals for consistent citation purposes and to discuss methodological changes; the last snapshot is available at https://doi.org/10.5194/essd-2024-14.\nFor general information about WoSIS please see the FAQ-page at https://www.isric.org/explore/wosis/faq-wosis.", "formats": ["OGC:WFS", "ZIP", "WWW:LINK-1.0-http--related", "OGC:WMS", "canonical"], "keywords": ["soil profiles", "soil classification", "soil profiles", "Soil science", "Global"], "providers": [{"name": "Paul van Genuchten", "organization": "ISRIC - World Soil Information", "positionName": null, "roles": [{"name": "pointOfContact"}], "contactInfo": {"phone": {"work": "+31 317 483 735"}, "email": {"work": "info@isric.org"}, "address": {"work": {"deliveryPoint": "PO Box 353", "city": "Wageningen", "administrativeArea": null, "postalCode": "6700AJ", "country": "Netherlands"}}, "url": {"url": null, "protocol": null, "name": null, "description": null, "function": null}}}]}, "links": [{"href": "https://maps.isric.org/mapserv?map=/map/wosis_latest.map", "name": ":wosis_latest_profiles", "description": "WoSIS latest - Profiles", "type": "OGC:WFS", "rel": "download"}, {"href": "https://files.isric.org/public/wosis_snapshot/WoSIS_2023_December.zip", "name": ":wosis_latest_profiles", "description": "WoSIS latest - Profiles", "type": "ZIP", "rel": "download"}, {"href": "https://doi.org/10.5194/essd-2024-14", "name": "Scientific paper", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://www.isric.org/explore/wosis/faq-wosis", "name": "Project webpage", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://maps.isric.org/mapserv?map=/map/wosis_latest.map", "name": "wosis_latest_profiles", "description": "WoSIS latest - Profiles", "type": "OGC:WMS", "rel": null}, {"href": "https://git.wur.nl/isric/soils4africa/s4a-registry/-/tree/main/WoSIS_latest_profiles/WoSIS_latest_profiles.yml", "name": "Source of the record", "description": null, "type": "canonical", "rel": "canonical"}, {"rel": "self", "type": "application/geo+json", "title": "f41367e5-f4d2-4b73-81aa-a472730e1519", "name": "item", "description": "f41367e5-f4d2-4b73-81aa-a472730e1519", "href": "https://africasis.isric.org/cat/collections/metadata:main/items/f41367e5-f4d2-4b73-81aa-a472730e1519"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://africasis.isric.org/cat/collections/metadata:main"}]}, {"id": "afsis_phase1_wetchem", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-20.0, -37.79], [-20.0, 38.53], [60.0, 38.53], [60.0, -37.79], [-20.0, -37.79]]]}, "time": ["2009-01-01", "2013-12-31"], "properties": {"themes": [], "updated": "2024-07-04", "type": "dataset", "language": "None", "title": "AfSIS Phase 1 Wet Chemistry Data (archived samples)", "description": "<p>This dataset contains a subset of the samples collected during the AfSIS Phase I project and was a collaborative effort between World Agroforestry (ICRAF) and Rothamsted Research. The soil samples were retrieved from <a href=https://worldagroforestry.org/output/icraf-soil-archive-physical-archive-systematically-collected-soil-samples/>ICRAF Soil Archive</a> and subject to wet chemical analysis at Rothamsted Research in the UK under a Global Challenges Research Fund project, \"BBS/OS/GC/000014B - Chemical and Biological Assessment of AfSIS soils\" funded through the UK Biotechnology and Biological Sciences Research Council. This dataset includes the Site, Cluster, Plot as well as the GPS coordinates and wet chemistry data from 2002 samples collected from 18 countries and 51 LDSF sites. The original data collection was part of the AfSIS Phase I project, funded by the Bill and Melinda Gates Foundation (BMGF) and took place between 2009-2013. </p>\n<p>ICRAF and CIAT contributed the Site, Cluster, Plot and GPS coordinates for the soil samples, ICRAF organized the sub-sampling of the soil samples from the ICRAF physical archive in Nairobi and Rothamsted analysed the soil samples in the UK in 2017 and 2018. The AfSIS Phase I project funded by the Bill and Melinda Gates Foundation (BMGF) from 2009-2013, aimed to provide a consistent baseline of soil information across sub-Saharan Africa (SSA). Led by CIAT-TSBF, partners included ISRIC, CIESIN, The Earth Institute at Columbia University and World Agroforestry (ICRAF). ICRAF led the systematic assessments of soil health using the <a href=http://landscapeportal.org/blog/2015/03/25/the-land-degradation-surveillance-framework-ldsf/>Land Degradation Surveillance Framework (LDSF)</a>, which was developed at ICRAF. LDSF sites were randomized using spatial stratification based on Koeppen-Geiger Climate zones across 19 countries in SSA. In total 60 LDSF sites were sampled. Soil samples were collected using the LDSF at two depths, 0-20 cm (labelled Topsoil) and 20-50 cm (labelled Subsoil). In each LDSF site, approximately 320 standard soil samples were collected. 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[Values M = mean value predicted]. For details see below for peer reviewed paper (T. Hengl, J.G.B. Leenaars, K.D. Shepherd, M.G. Walsh, G.B.M. Heuvelink, Tekalign Mamo, H. Tilahun, E. Berkhout, M. Cooper, E. Fegraus, I. Wheeler, N.A. Kwabena, 2017. Soil nutrient maps of Sub-Saharan Africa: assessment of soil nutrient content at 250 m spatial resolution using machine learning. Nutri\u00ebnt Cycling in Agroecosystems 109(1): 77-102). Maps produced for the Environmental Assessment Agency (PBL), funded by the Netherlands government, in collaboration with the AfSIS and the Vital Signs projects.", "formats": ["WWW:DOWNLOAD-1.0-ftp--download", "OGC:WMS", "WWW:LINK-1.0-http--related", "canonical"], "keywords": ["soil", "soil chemicophysical properties", "nutrients", "sodium", "digital soil mapping", "Soil science", "Africa"], "providers": [{"name": null, "organization": "ISRIC - World Soil Information", "positionName": null, "roles": [{"name": "pointOfContact"}], "contactInfo": {"phone": {"work": null}, "email": {"work": "soilgrids@isric.org"}, "address": {"work": {"deliveryPoint": null, "city": "Wageningen", "administrativeArea": "GLD", "postalCode": null, "country": "Netherlands"}}, "url": {"url": null, "protocol": null, "name": null, "description": null, "function": null}}}]}, "links": [{"href": "https://files.isric.org/public/af250m_nutrient/af250m_nutrient_na_m_agg30cm.tif", "name": "Download GeoTIFF at depth 30 cm", "description": null, "type": "WWW:DOWNLOAD-1.0-ftp--download", "rel": "download"}, {"href": "https://maps.isric.org/mapserv?map=/map/af250m_nutrient.map", "name": "af250m_nutrient_na_m_agg30cm", "description": null, "type": "OGC:WMS", "rel": "information"}, {"href": "https://isric.org/projects/africa-soilgrids-soil-nutrient-maps-sub-saharan-africa-250-m-resolution", "name": "Project webpage", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://link.springer.com/article/10.1007/s10705-017-9870-x", "name": "Scientific paper", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://git.wur.nl/isric/soils4africa/s4a-registry/-/tree/main/data.isric.org/290d3e5d-e173-4f6b-8831-053b819d75fc.yml", "name": "Source of the record", "description": null, "type": "canonical", "rel": "canonical"}, {"rel": "self", "type": "application/geo+json", "title": "290d3e5d-e173-4f6b-8831-053b819d75fc", "name": "item", "description": "290d3e5d-e173-4f6b-8831-053b819d75fc", "href": "https://africasis.isric.org/cat/collections/metadata:main/items/290d3e5d-e173-4f6b-8831-053b819d75fc"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://africasis.isric.org/cat/collections/metadata:main"}]}, {"id": "2a7d2fb8-e0db-4a4b-9661-4809865aaccf", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-18.0, -35.0], [-18.0, 37.0], [51.0, 37.0], [51.0, -35.0], [-18.0, -35.0]]]}, "time": ["1960-01-01", "2015-12-31"], "properties": {"themes": [{"scheme": "https://lsc-hubs.org/categories/", "concepts": []}, {"scheme": "https://lsc-hubs.org/tags/", "concepts": []}], "updated": "2021-07-14T11:52:34", "type": "dataset", "language": "None", "externalIds": [{"value": "https://data.isric.org/geonetwork/srv/metadata/2a7d2fb8-e0db-4a4b-9661-4809865aaccf/formatters/xml"}], "title": "Africa SoilGrids - Texture", "description": "Textural class (defined according to USDA system) at 6 depth intervals derived from sand, silt and clay contents predicted using the Africa Soil Profiles Database (AfSP) v1.2. 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[Values M = mean value predicted]. For details see below for peer reviewed paper (T. Hengl, J.G.B. Leenaars, K.D. Shepherd, M.G. Walsh, G.B.M. Heuvelink, Tekalign Mamo, H. Tilahun, E. Berkhout, M. Cooper, E. Fegraus, I. Wheeler, N.A. Kwabena, 2017. Soil nutrient maps of Sub-Saharan Africa: assessment of soil nutrient content at 250 m spatial resolution using machine learning. Nutri\u00ebnt Cycling in Agroecosystems 109(1): 77-102). Maps produced for the Environmental Assessment Agency (PBL), funded by the Netherlands government, in collaboration with the AfSIS and the Vital Signs projects.", "formats": ["WWW:DOWNLOAD-1.0-ftp--download", "OGC:WMS", "WWW:LINK-1.0-http--related", "canonical"], "keywords": ["soil", "Soil Fertility", "soil chemicophysical properties", "nutrients", "zinc", "digital soil mapping", "Soil science", "Africa"], "providers": [{"name": null, "organization": "ISRIC - World Soil Information", "positionName": null, "roles": [{"name": "pointOfContact"}], "contactInfo": {"phone": {"work": null}, "email": {"work": "soilgrids@isric.org"}, "address": {"work": {"deliveryPoint": null, "city": "Wageningen", "administrativeArea": "GLD", "postalCode": null, "country": "Netherlands"}}, "url": {"url": null, "protocol": null, "name": null, "description": null, "function": null}}}]}, "links": [{"href": "https://files.isric.org/public/af250m_nutrient/af250m_nutrient_zn_m_agg30cm.tif", "name": "Download GeoTIFF at depth 30 cm", "description": null, "type": "WWW:DOWNLOAD-1.0-ftp--download", "rel": "download"}, {"href": "https://maps.isric.org/mapserv?map=/map/af250m_nutrient.map", "name": "af250m_nutrient_zn_m_agg30cm", "description": null, "type": "OGC:WMS", "rel": "information"}, {"href": "https://isric.org/projects/africa-soilgrids-soil-nutrient-maps-sub-saharan-africa-250-m-resolution", "name": "Project webpage", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://link.springer.com/article/10.1007/s10705-017-9870-x", "name": "Scientific paper", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://git.wur.nl/isric/soils4africa/s4a-registry/-/tree/main/data.isric.org/4e970a98-149d-4103-a7da-a6e8f974aad3.yml", "name": "Source of the record", "description": null, "type": "canonical", "rel": "canonical"}, {"rel": "self", "type": "application/geo+json", "title": "4e970a98-149d-4103-a7da-a6e8f974aad3", "name": "item", "description": "4e970a98-149d-4103-a7da-a6e8f974aad3", "href": "https://africasis.isric.org/cat/collections/metadata:main/items/4e970a98-149d-4103-a7da-a6e8f974aad3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://africasis.isric.org/cat/collections/metadata:main"}]}, {"id": "4f0daec9-4c10-4906-a778-43a8fa2251c3", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-18.0, -35.0], [-18.0, 37.0], [51.0, 37.0], [51.0, -35.0], [-18.0, -35.0]]]}, "time": ["1950-01-01", "2015-12-01"], "properties": {"themes": [{"scheme": "https://lsc-hubs.org/categories/", "concepts": []}, {"scheme": "https://lsc-hubs.org/tags/", "concepts": []}], "updated": "2021-07-14T11:51:54", "type": "dataset", "language": "None", "externalIds": [{"value": "https://data.isric.org/geonetwork/srv/metadata/4f0daec9-4c10-4906-a778-43a8fa2251c3/formatters/xml"}], "title": "Africa SoilGrids - 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Exchangeable acidity (H+Al)", "description": "Exchangeable acidity (H+Al measured in 1M KCl) in cmolc/kg (fine earth) at 6 standard depths predicted using two sets of Africa soil profiles data. For details see published paper here below (Hengl T., G.B.M. Heuvelink, B. Kempen, J.G.B. Leenaars, M.G. Walsh, K.D. Shepherd, A. Sila, R.A. MacMillan, J. Mendes de Jesus, L.T. Desta, J.E. Tondoh, 2015. Mapping Soil Properties of Africa at 250 m Resolution: Random Forests Significantly Improve Current Predictions. 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For details see published paper here below (Hengl T., G.B.M. Heuvelink, B. Kempen, J.G.B. Leenaars, M.G. Walsh, K.D. Shepherd, A. Sila, R.A. MacMillan, J. Mendes de Jesus, L.T. Desta, J.E. Tondoh, 2015. Mapping Soil Properties of Africa at 250 m Resolution: Random Forests Significantly Improve Current Predictions. 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It replaces version 1.1. \nThe Africa Soil Profiles Database is a compilation of georeferenced and standardised legacy soil profile data for Sub-Saharan Africa. Version 1.2 (November 2014) identifies 18,532 unique soil profiles inventoried from a wide variety of data sources and includes profile site and layer attribute data. Soil analytical data are available for 15,564 profiles of which 14,197 are georeferenced, including the attributes as specified by GlobalSoilMap.net. Soil attribute values are standardized according to SOTER conventions and are validated according to routine rules. Odd values are flagged. The degree of validation, and associated reliability of the data, varies because reference soil profile data, that are previously and thoroughly validated, are compiled together with non-reference soil profile data of lesser inherent representativeness.", "formats": ["WWW:DOWNLOAD-1.0-ftp--download", "WWW:LINK-1.0-http--related", "canonical"], "keywords": ["soil", "soil profiles", "Soil science", "Angola", "Benin", "Botswana", "Burkina Faso", "Burundi", "Cameroon", "Central African Republic", "Chad", "Demcratic Republic of the Congo", "Eswatini", "Ethiopia", "Gabon", "Ghana", "Guinea", "Guinea-Bissau", "Kenya", "Lesotho", "Madagascar", "Malawi", "Mali", "Mauritania", "Mozambique", "Namibia", "Niger", "Nigeria", "Republic of the Congo", "Rwanda", "Senegal", "Sierra Leone", "Somalia", "South Africa", "South Sudan", "Sudan", "Tanzania", "Togo", "Uganda", "Zambia", "Zimbabwe", "Soil Observations"], "providers": [{"name": null, "organization": "ISRIC - World Soil Information", "positionName": null, "roles": [{"name": "pointOfContact"}], "contactInfo": {"phone": {"work": null}, "email": {"work": "soilgrids@isric.org"}, "address": {"work": {"deliveryPoint": null, "city": "Wageningen", "administrativeArea": "GLD", "postalCode": null, "country": "Netherlands"}}, "url": {"url": null, "protocol": null, "name": null, "description": null, "function": null}}}]}, "links": [{"href": "https://files.isric.org/public/afsp/AF-AfSP1.2.zip", "name": "Download", "description": null, "type": "WWW:DOWNLOAD-1.0-ftp--download", "rel": "download"}, {"href": "https://isric.org/projects/africa-soil-profiles-database-afsp", "name": "Project webpage", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://isric.org/sites/default/files/isric_report_2014_01.pdf", "name": "Report", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://git.wur.nl/isric/soils4africa/s4a-registry/-/tree/main/data.isric.org/b88870b4-6af8-4e78-a3ac-38871d757525.yml", "name": "Source of the record", "description": null, "type": "canonical", "rel": "canonical"}, {"rel": "self", "type": "application/geo+json", "title": "b88870b4-6af8-4e78-a3ac-38871d757525", "name": "item", "description": "b88870b4-6af8-4e78-a3ac-38871d757525", "href": "https://africasis.isric.org/cat/collections/metadata:main/items/b88870b4-6af8-4e78-a3ac-38871d757525"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://africasis.isric.org/cat/collections/metadata:main"}]}, {"id": "a21e3629-69a0-4e02-8eb2-3436e7a26f2e", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-18.0, -35.0], [-18.0, 37.0], [51.0, 37.0], [51.0, -35.0], [-18.0, -35.0]]]}, "time": ["1960-01-01", "2015-12-31"], "properties": {"themes": [{"scheme": "https://lsc-hubs.org/categories/", "concepts": []}, {"scheme": "https://lsc-hubs.org/tags/", "concepts": []}], "updated": "2021-07-14T11:52:32", "type": "dataset", "language": "None", "externalIds": [{"value": "https://data.isric.org/geonetwork/srv/metadata/a21e3629-69a0-4e02-8eb2-3436e7a26f2e/formatters/xml"}], "title": "Africa SoilGrids - Extractable aluminium (Al)", "description": "Extractable aluminium content (Al measured by Mehlich 3) in mg/kg (fine earth) at 2 depth intervals (0-20 cm and 20-50 cm) predicted using two sets of Africa soil profiles data. For details see published paper here below (Hengl T., G.B.M. Heuvelink, B. Kempen, J.G.B. Leenaars, M.G. Walsh, K.D. Shepherd, A. Sila, R.A. MacMillan, J. Mendes de Jesus, L.T. Desta, J.E. Tondoh, 2015. Mapping Soil Properties of Africa at 250 m Resolution: Random Forests Significantly Improve Current Predictions. PLoS ONE 10(6)", "formats": ["WWW:DOWNLOAD-1.0-ftp--download", "WWW:LINK-1.0-http--related", "canonical"], "keywords": ["soil", "Soil Fertility", "soil chemicophysical properties", "aluminium", "digital soil mapping", "nutrients", "Soil science", "Africa"], "providers": [{"name": null, "organization": "ISRIC - World Soil Information", "positionName": null, "roles": [{"name": "pointOfContact"}], "contactInfo": {"phone": {"work": null}, "email": {"work": "soilgrids@isric.org"}, "address": {"work": {"deliveryPoint": null, "city": "Wageningen", "administrativeArea": "GLD", "postalCode": null, "country": "Netherlands"}}, "url": {"url": null, "protocol": null, "name": null, "description": null, "function": null}}}]}, "links": [{"href": "https://files.isric.org/public/afsis250m/af_ALUM3S_T__M_xd1_250m.tif", "name": "Download GeoTIFF at depth 1", "description": null, "type": "WWW:DOWNLOAD-1.0-ftp--download", "rel": "download"}, {"href": "https://files.isric.org/public/afsis250m/af_ALUM3S_T__M_xd2_250m.tif", "name": "Download GeoTIFF at depth 2", "description": null, "type": "WWW:DOWNLOAD-1.0-ftp--download", "rel": "download"}, {"href": "https://isric.org/projects/soil-property-maps-africa-250-m-resolution", "name": "Project webpage", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0125814", "name": "Scientific paper", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://git.wur.nl/isric/soils4africa/s4a-registry/-/tree/main/data.isric.org/a21e3629-69a0-4e02-8eb2-3436e7a26f2e.yml", "name": "Source of the record", "description": null, "type": "canonical", "rel": "canonical"}, {"rel": "self", "type": "application/geo+json", "title": "a21e3629-69a0-4e02-8eb2-3436e7a26f2e", "name": "item", "description": "a21e3629-69a0-4e02-8eb2-3436e7a26f2e", "href": "https://africasis.isric.org/cat/collections/metadata:main/items/a21e3629-69a0-4e02-8eb2-3436e7a26f2e"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://africasis.isric.org/cat/collections/metadata:main"}]}, {"id": "a36f7919-0d6e-4044-902c-64a74feade6b", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-29.7, -34.9], [-29.7, 28.7], [55.4, 28.7], [55.4, -34.9], [-29.7, -34.9]]]}, "time": ["1980-01-01", "2016-12-31"], "properties": {"themes": [{"scheme": "https://lsc-hubs.org/categories/", "concepts": []}, {"scheme": "https://lsc-hubs.org/tags/", "concepts": []}], "updated": "2021-07-14T11:52:35", "type": "dataset", "language": "None", "externalIds": [{"value": "https://data.isric.org/geonetwork/srv/metadata/a36f7919-0d6e-4044-902c-64a74feade6b/formatters/xml"}], "title": "Africa SoilGrids nutrients - Extractable Aluminium (Al)", "description": "Extractable Aluminium (Al) content of the soil fine earth fraction in mg/kg (ppm) as measured according to the soil analytical procedure of Mehlich 3 and spatially predicted for 0-30 cm depth interval at 250 m spatial resolution across sub-Saharan Africa using Machine Learning (ensemble between random forest and gradient boosting) using soil data from the Africa Soil Profiles database (AfSP) compiled by AfSIS and recent soil data newly collected by AfSIS in partnership with EthioSIS (Ethiopia), GhaSIS (Ghana) and NiSIS (Nigeria as made possible by OCP Africa and IITA), combined with soil data as made available by Wageningen University and Research, IFDC, VitalSigns, University of California and the OneAcreFund. [Values M = mean value predicted]. For details see below for peer reviewed paper (T. Hengl, J.G.B. Leenaars, K.D. Shepherd, M.G. Walsh, G.B.M. Heuvelink, Tekalign Mamo, H. Tilahun, E. Berkhout, M. Cooper, E. Fegraus, I. Wheeler, N.A. Kwabena, 2017. Soil nutrient maps of Sub-Saharan Africa: assessment of soil nutrient content at 250 m spatial resolution using machine learning. Nutri\u00ebnt Cycling in Agroecosystems 109(1): 77-102). Maps produced for the Environmental Assessment Agency (PBL), funded by the Netherlands government, in collaboration with the AfSIS and the Vital Signs projects.", "formats": ["WWW:DOWNLOAD-1.0-ftp--download", "OGC:WMS", "WWW:LINK-1.0-http--related", "canonical"], "keywords": ["soil", "Soil Fertility", "soil chemicophysical properties", "nutrients", "aluminium", "digital soil mapping", "Soil science", "Africa"], "providers": [{"name": null, "organization": "ISRIC - World Soil Information", "positionName": null, "roles": [{"name": "pointOfContact"}], "contactInfo": {"phone": {"work": null}, "email": {"work": "soilgrids@isric.org"}, "address": {"work": {"deliveryPoint": null, "city": "Wageningen", "administrativeArea": "GLD", "postalCode": null, "country": "Netherlands"}}, "url": {"url": null, "protocol": null, "name": null, "description": null, "function": null}}}]}, "links": [{"href": "https://files.isric.org/public/af250m_nutrient/af250m_nutrient_al_m_agg30cm.tif", "name": "Download GeoTIFF at depth 30 cm", "description": null, "type": "WWW:DOWNLOAD-1.0-ftp--download", "rel": "download"}, {"href": "https://maps.isric.org/mapserv?map=/map/af250m_nutrient.map", "name": "af250m_nutrient_al_m_agg30cm", "description": null, "type": "OGC:WMS", "rel": "information"}, {"href": "https://isric.org/projects/africa-soilgrids-soil-nutrient-maps-sub-saharan-africa-250-m-resolution", "name": "Project webpage", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://link.springer.com/article/10.1007/s10705-017-9870-x", "name": "Scientific paper", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://git.wur.nl/isric/soils4africa/s4a-registry/-/tree/main/data.isric.org/a36f7919-0d6e-4044-902c-64a74feade6b.yml", "name": "Source of the record", "description": null, "type": "canonical", "rel": "canonical"}, {"rel": "self", "type": "application/geo+json", "title": "a36f7919-0d6e-4044-902c-64a74feade6b", "name": "item", "description": "a36f7919-0d6e-4044-902c-64a74feade6b", "href": "https://africasis.isric.org/cat/collections/metadata:main/items/a36f7919-0d6e-4044-902c-64a74feade6b"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://africasis.isric.org/cat/collections/metadata:main"}]}, {"id": "b3df7f8d-aa90-4206-a11c-5d95b4dd2327", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-17.0, -34.0], [-17.0, 17.5], [49.0, 17.5], [49.0, -34.0], [-17.0, -34.0]]]}, "time": ["1925-01-01", "2011-01-01"], "properties": {"themes": [{"scheme": "https://lsc-hubs.org/categories/", "concepts": []}, {"scheme": "https://lsc-hubs.org/tags/", "concepts": []}], "updated": "2021-07-14T11:52:31", "type": "dataset", "language": "None", "externalIds": [{"value": "https://data.isric.org/geonetwork/srv/metadata/b3df7f8d-aa90-4206-a11c-5d95b4dd2327/formatters/xml"}], "title": "Africa Soil Profiles Database, version 1.1", "description": "The Africa Soil Profiles Database, Version 1.1, is compiled by ISRIC - World Soil Information (World Data Center for Soils) as a project activity for the Globally integrated- Africa Soil Information Service (AfSIS) project (www.africasoils.net/data/legacyprofile). 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[Values M = mean value predicted]. For details see below for peer reviewed paper (T. Hengl, J.G.B. Leenaars, K.D. Shepherd, M.G. Walsh, G.B.M. Heuvelink, Tekalign Mamo, H. Tilahun, E. Berkhout, M. Cooper, E. Fegraus, I. Wheeler, N.A. Kwabena, 2017. Soil nutrient maps of Sub-Saharan Africa: assessment of soil nutrient content at 250 m spatial resolution using machine learning. Nutri\u00ebnt Cycling in Agroecosystems 109(1): 77-102). 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[Values M = mean value predicted]. For details see below for peer reviewed paper (T. Hengl, J.G.B. Leenaars, K.D. Shepherd, M.G. Walsh, G.B.M. Heuvelink, Tekalign Mamo, H. Tilahun, E. Berkhout, M. Cooper, E. Fegraus, I. Wheeler, N.A. Kwabena, 2017. Soil nutrient maps of Sub-Saharan Africa: assessment of soil nutrient content at 250 m spatial resolution using machine learning. Nutri\u00ebnt Cycling in Agroecosystems 109(1): 77-102). 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[Values M = mean value predicted]. For details see below for peer reviewed paper (T. Hengl, J.G.B. Leenaars, K.D. Shepherd, M.G. Walsh, G.B.M. Heuvelink, Tekalign Mamo, H. Tilahun, E. Berkhout, M. Cooper, E. Fegraus, I. Wheeler, N.A. Kwabena, 2017. Soil nutrient maps of Sub-Saharan Africa: assessment of soil nutrient content at 250 m spatial resolution using machine learning. Nutri\u00ebnt Cycling in Agroecosystems 109(1): 77-102). Maps produced for the Environmental Assessment Agency (PBL), funded by the Netherlands government, in collaboration with the AfSIS and the Vital Signs projects.", "formats": ["WWW:DOWNLOAD-1.0-ftp--download", "OGC:WMS", "WWW:LINK-1.0-http--related", "canonical"], "keywords": ["soil", "Soil Fertility", "soil chemicophysical properties", "nutrients", "magnesium", "digital soil mapping", "Soil science", "Africa"], "providers": [{"name": null, "organization": "ISRIC - World Soil Information", "positionName": null, "roles": [{"name": "pointOfContact"}], "contactInfo": {"phone": {"work": null}, "email": {"work": "soilgrids@isric.org"}, "address": {"work": {"deliveryPoint": null, "city": "Wageningen", "administrativeArea": "GLD", "postalCode": null, "country": "Netherlands"}}, "url": {"url": null, "protocol": null, "name": null, "description": null, "function": null}}}]}, "links": [{"href": "https://files.isric.org/public/af250m_nutrient/af250m_nutrient_mg_m_agg30cm.tif", "name": "Download GeoTIFF at depth 30 cm", "description": null, "type": "WWW:DOWNLOAD-1.0-ftp--download", "rel": "download"}, {"href": "https://maps.isric.org/mapserv?map=/map/af250m_nutrient.map", "name": "af250m_nutrient_mg_m_agg30cm", "description": null, "type": "OGC:WMS", "rel": "information"}, {"href": "https://isric.org/projects/africa-soilgrids-soil-nutrient-maps-sub-saharan-africa-250-m-resolution", "name": "Project webpage", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://link.springer.com/article/10.1007/s10705-017-9870-x", "name": "Scientific paper", "description": null, "type": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://git.wur.nl/isric/soils4africa/s4a-registry/-/tree/main/data.isric.org/d601201d-5d88-4f7a-9676-5c2ace45f7c6.yml", "name": "Source of the record", "description": null, "type": "canonical", "rel": "canonical"}, {"rel": "self", "type": "application/geo+json", "title": "d601201d-5d88-4f7a-9676-5c2ace45f7c6", "name": "item", "description": "d601201d-5d88-4f7a-9676-5c2ace45f7c6", "href": "https://africasis.isric.org/cat/collections/metadata:main/items/d601201d-5d88-4f7a-9676-5c2ace45f7c6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://africasis.isric.org/cat/collections/metadata:main"}]}, {"id": "c77d1209-56e9-4cac-b76e-bbf6c7e3a617", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-18.0, -35.0], [-18.0, 37.0], [51.0, 37.0], [51.0, -35.0], [-18.0, -35.0]]]}, "time": ["1950-01-01", "2015-12-01"], "properties": {"themes": [{"scheme": "https://lsc-hubs.org/categories/", "concepts": []}, {"scheme": "https://lsc-hubs.org/tags/", "concepts": []}], "updated": "2021-07-14T11:52:09", "type": "dataset", "language": "None", "externalIds": [{"value": "https://data.isric.org/geonetwork/srv/metadata/c77d1209-56e9-4cac-b76e-bbf6c7e3a617/formatters/xml"}], "title": "Africa SoilGrids - 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