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    Mapping global cropland and field size

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    Authors
    Fritz, Steffen
    See, Linda
    McCallum, Ian
    You, Liangzhi
    Bun A
    Moltchanova E
    Duerauer, M
    Albrecht, F.
    Schill C
    Perger C
    Havlík, Petr
    Mosnier, Aline
    Thornton, Philip K.
    Wood-Sichra, Ulrike
    Herrero, Mario T.
    Becker-Reshef, Inbal
    Justice, Chris
    Hansen, Matthew
    Gong, Peng
    Abdel Aziz, Sheta
    Ciprián, Arsenio
    Cumani, Renato
    Cecchi, G.
    Conchedda, G.
    Ferreira S
    Gómez, A.
    Haffani M
    Kayitakire, Francois
    Malanding, J
    Mueller R
    Newby T
    Nonguierma A
    Olusegun A
    Ortner S
    Rajak R
    Rocha J
    Schepaschenko, Dmitry
    Schepaschenko, M.
    Terekhov A
    Tiangwa, A.
    Vancutsem, C.
    Vintrou E
    Wenbin W
    Velde, M. van der
    Dunwoody, A.
    Kraxner, Florian
    Obersteiner, Michael
    Date
    2015-01
    Language
    en
    Type
    Journal Article
    Accessibility
    Limited Access
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    Citation
    Fritz S, See L, McCallum I, You L, Bun A, Moltchanova E, Duerauer M, Albrecht F, Schill C, Perger C, Havlik P, Mosnier A, Thornton P, Wood-Sichra U, Herrero M, Beckerreshef I, Justice C, Hansen M, Gong P, Abdel Aziz S, Cipriani A, Cumani R, Cecchi G, Conchedda G, Ferreira S, Gomez A, Haffani M, Kayitakire F, Malanding J, Mueller R, Newby T, Nonguierma A, Olusegun A, Ortner S, Ram Rajak D, Rocha J, Schepaschenko D, Schepaschenko S, Terekhov A, Tiangwa A, Vancutsem C, Vintrou E, Wenbin W, Van Der Velde M, Dunwoody A, Kraxner F, Obersteiner M. 2015. Mapping global cropland and field size. Global Change Biology 21(5):1980-1992.
    Permanent link to cite or share this item: https://hdl.handle.net/10568/53100
    DOI: https://doi.org/10.1111/gcb.12838
    Abstract/Description
    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.
    CGIAR Author ORCID iDs
    Philip Thorntonhttps://orcid.org/0000-0002-1854-0182
    Other CGIAR Affiliations
    Climate Change, Agriculture and Food Security
    AGROVOC Keywords
    crop performance; land cover mapping; farmland; satellites; agriculture; climatic data; climate change adaptation
    Subjects
    DATA AND TOOLS FOR ANALYSIS AND PLANNING;
    Collections
    • CCAFS Journal Articles [1243]

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