36cb1f3a-c0fe-4f99-ba5f-a9f2b4494431 en utf8 dataset Ulan Turdukulov ISRIC - World Soil Information None ulan.turdukulov@isric.org pointOfContact 2021-07-14T11:51:42 ISO 19115:2003 - Geographic information - Metadata ISO 19115:2003 https://data.isric.org/geonetwork/srv/metadata/36cb1f3a-c0fe-4f99-ba5f-a9f2b4494431/formatters/xml urn:ogc:def:crs:EPSG: Global distribution of soil phosphorus retention potential 2011-06-01 publication Limited availability of P in soils to crops may be due to deficiency and/or severe P retention. Earlier studies that drew on large soil profile databases have indicated that it is not (yet) feasible to present meaningful values for “plant-available” soil P, obtained according to comparable analytical methods, that may be linked to soil geographical databases derived from 1:5 million scale FAO Digital Soil Map of the World, such as the 5 x 5 arc-minute version of the ISRIC-WISE database. Therefore, an alternative solution for studying possible crop responses to fertilizer-P applied to soils, at a broad scale, was sought. The approach described in this report considers the inherent capacity of soils to retain phosphorus (P retention), in various forms. Main controlling factors of P retention processes, at the broad scale under consideration, are considered to be pH, soil mineralogy, and clay content. First, derived values for these properties were used to rate the inferred capacity for P retention of the component soil units of each map unit (or grid cell) using four classes (i.e., Low, Moderate, High, and Very High). Subsequently, the overall soil phosphorus retention potential was assessed for each mapping unit, taking into account the P-ratings and relative proportion of each component soil unit. Each P retention class has been assigned to a likely fertilizer P recovery fraction, derived from the literature, thereby permitting spatially more detailed, integrated model-based studies of environmental sustainability and agricultural production at the global and continental level (< 1:5 million). Nonetheless, uncertainties remain high; the present analysis provides an approximation of world soil phosphorus retention potential. Completed Ulan Turdukulov ISRIC - World Soil Information None ulan.turdukulov@isric.org pointOfContact continual soil LSC categories soil chemicophysical properties, soil fertility, soil water conservation LSC tags phosphorus nutrients Soil science Global license unknown eng utf8 geoscientificInformation 1 -180.0 -90.0 -180.0 100.0 180.0 100.0 180.0 -90.0 -180.0 -90.0 2001-06-01 2011-06-01 https://files.isric.org/public/other/Global_distribution_of_soil_phosphorus_retention_potential.zip WWW:DOWNLOAD-1.0-ftp--download Download download https://isric.org/projects/global-assessment-soil-phosphorus-retention-potential WWW:LINK-1.0-http--related Project webpage information https://isric.org/sites/default/files/isric_report_2011_06.pdf WWW:LINK-1.0-http--related Report information https://git.wur.nl/isric/lsc-hubs/ethiopia-hub/-/blob/ethiopia/portals/Global/data.isric.org/36cb1f3a-c0fe-4f99-ba5f-a9f2b4494431.yml canonical Source of the record canonical dataset continual