Mapping global cropland field size

11471 28 51964 2 141593 document 51964 Mapping global cropland and field size.pdf application/pdf 0216ec66d3afcb4a84c9ecd355c61fbc MD5 1591949 2016-05-02 07:58:29 https://pure.iiasa.ac.at/id/eprint/11471/1/Mapping%20global%20cropland%20and%20field%20size.pdf 11471 1 1 application/pdf text en public cc_by

Mapping global cropland and field size.pdf

published 51965 2 141596 document 51965 lightbox.jpg image/png 012a22662a0b4abd612fbc343c197c74 MD5 64474 2016-05-02 07:58:52 https://pure.iiasa.ac.at/id/eprint/11471/2/lightbox.jpg 11471 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/51964 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/51964 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/51964 archive 351 disk0/00/01/14/71 2016-01-15 08:53:21 2024-01-04 13:54:52 2016-01-15 08:53:21 article show Fritz S. 8130 0000-0003-0420-8549 See L. 8571 0000-0002-2665-7065 McCallum I. 1731 0000-0002-5812-9988 Bun A. 8250 Moltchanova E. 7915 Dürauer M. 2013 Perger C. 1899 Havlik P. 1868 0000-0001-5551-5085 Mosnier A. 1894 Schepaschenko D. 7435 0000-0002-7814-4990 van der Velde M. 1938 Dunwoody A. 2036 Kraxner F. 7904 Obersteiner M. 7255 0000-0001-6981-2769 Mapping global cropland field size pub iis_lca prog_esm agricultural intensity, cropland, data fusion, field size, land cover, synergy map, Geo-Wiki A new 1 km global IIASA-IFPRI cropland percentage map for the baseline year 2005 has been developed which integrates a number of individual cropland maps at global to regional to national scales. The individual map products include existing global land cover maps such as GlobCover 2005 and MODIS v.5, regional maps such as AFRICOVER and national maps from mapping agencies and other organizations. The different products are ranked at the national level using crowdsourced data from Geo-Wiki to create a map that reflects the likelihood of cropland. Calibration with national and subnational crop statistics was then undertaken to distribute the cropland within each country and subnational unit. The new IIASA-IFPRI cropland product has been validated using very high-resolution satellite imagery via Geo-Wiki and has an overall accuracy of 82.4%. It has also been compared with the EarthStat cropland product and shows a lower root mean square error on an independent data set collected from Geo-Wiki. The first ever global field size map was produced at the same resolution as the IIASA-IFPRI cropland map based on interpolation of field size data collected via a Geo-Wiki crowdsourcing campaign. A validation exercise of the global field size map revealed satisfactory agreement with control data, particularly given the relatively modest size of the field size data set used to create the map. Both are critical inputs to global agricultural monitoring in the frame of GEOGLAM and will serve the global land modelling and integrated assessment community, in particular for improving land use models that require baseline cropland information. These products are freely available for downloading from the http://cropland.geo-wiki.org website. 2015-05 published Wiley-Blackwell 10.1111/gcb.12838 XJ-15-091 Global Change Biology; 21(5):1980-1992 (May 2015) (Published online 16 January 2015) [doi:10.1111/gcb.12838] 98 276 202 1174 1460 73 228 119 212 279 1631 72 165 219 public Global Change Biology 21 5 1980-1992 TRUE 1365-2486 Harnessing the power of crowdsourcing to improve land cover and land-use information (CROWDLAND, FP7 617754) Geo-Wiki FALSE yes info:eu-repo/grantAgreement/EC/FP7/617754/EU/Harnessing the power of crowdsourcing to improve land cover and land-use information/CROWDLAND; info:eu-repo/grantAgreement/EC/FP7/283080/EU//GEOCARBON; info:eu-repo/grantAgreement/EC/FP7/603719/EU//SIGMA info:eu-repo/semantics/article info:eu-repo/semantics/openAccess