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Discussion papers
https://doi.org/10.5194/essd-2020-12
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2020-12
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: data description paper 11 Feb 2020

Submitted as: data description paper | 11 Feb 2020

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This preprint is currently under review for the journal ESSD.

A cultivated planet in 2010: 1. the global synergy cropland map

Miao Lu1, Wenbin Wu1, Liangzhi You1,2, Linda See3, Steffen Fritz3, Qiangyi Yu1, Yanbing Wei1, Di Chen1, Peng Yang1, and Bing Xue4 Miao Lu et al.
  • 1Key Laboratory of Agricultural Remote Sensing (AGRIRS), Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, 5 Beijing, 100081, China
  • 2International Food Policy Research Institute (IFPRI), Washington, DC, 20005-3915, USA
  • 3International Institute for Applied Systems Analysis, ESM, Laxenburg, A-2361, Austria
  • 4School of Engineering and Computer Science, Victoria University of Wellington, Wellington, 6140, New Zealand

Abstract. Information on global cropland distribution and agricultural production is critical for the world’s agricultural monitoring and food security. We present datasets of cropland extent and agricultural production in the two-paper series of a cultivated planet in 2010. In the first part, we propose a new self-adapting statistics allocation model (SASAM) to develop the global map of cropland distribution. SASAM is based on the fusion of multiple existing cropland maps and multilevel statistics of the cropland area, which is independent of training samples. First, cropland area statistics are used to rank the input cropland maps, and then a scoring table is built to indicate the agreement among the input datasets. Secondly, statistics are allocated adaptively to the pixels with higher agreement scores, until the cumulative cropland area is close to the statistics. The multi-level allocation results are then integrated to obtain the extent of cropland. We applied SASAM to produce a global cropland synergy map with a 500 m spatial resolution circa 2010. The accuracy assessments show that the synergy map has higher accuracy than the input datasets, and better consistency with the cropland statistics. The synergy cropland map is available via an open-data repository (DOI: https://doi.org/10.7910/DVN/ZWSFAA. Lu et al., 2020). This cropland map has been used as an essential input to the Spatial Production Allocation Model (SPAM) for producing the global dataset of agricultural production circa 2010, which is described in the second part of the two-paper series.

Miao Lu et al.

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Miao Lu et al.

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