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Abstract
Multiple cropping is a widespread approach for intensifying crop production through rotations of diverse crops. Maps of cropping intensity with crop descriptions are important for supporting sustainable agricultural management. As the most populated country, China ranked first in global cereal production and the percentages of multiple-cropped land are twice of the global average. However, there are no reliable updated national-scale maps of cropping patterns in China. Here we present the first recent annual 500-m MODIS-based national maps of multiple cropping systems in China using phenology-based mapping algorithms with pixel purity-based thresholds, which provide information on cropping intensity with descriptions of three staple crops (maize, paddy rice, and wheat). The produced cropping patterns maps achieved an overall accuracy of 89% based on ground truth data, and a good agreement with the statistical data (R2 ≥ 0.89). The China Cropping Pattern maps (ChinaCP) are available for public download online. Cropping patterns maps in China and other countries with finer resolutions can be produced based on Sentinel-2 Multispectral Instrument (MSI) images using the shared code.
Measurement(s) | area of different cropping patterns |
Technology Type(s) | phenology-based approach |
Factor Type(s) | type of cropping pattern |
Sample Characteristic - Organism | Organism |
Sample Characteristic - Environment | cultivated environment |
Sample Characteristic - Location | China |
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Details
1 Fuzhou University, Key Laboratory of Spatial Data Mining &Information Sharing of Ministry of Education, Academy of Digital China (Fujian), Fuzhou, China (GRID:grid.411604.6) (ISNI:0000 0001 0130 6528)
2 University of Nebraska-Lincoln, Community and Regional Planning Program, Lincoln, USA (GRID:grid.24434.35) (ISNI:0000 0004 1937 0060)
3 Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Remote Sensing, Beijing, China (GRID:grid.418524.e) (ISNI:0000 0004 0369 6250)
4 The Hong Kong Polytechnic University, Department of Land Surveying and Geo-Informatics, Hong Kong, China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123)