TY  - JA
AU  - Nanshan You
AU  - Jinwei Dong
AU  - Jianxi Huang
AU  - Guoming Du
AU  - Geli Zhang
AU  - Yingli He
AU  - Tong Yang
AU  - Yuanyuan Di
AU  - Xiangming Xiao
TI  - The 10-m crop type maps in Northeast China during 2017–2019
SN  - 2052-4463
PY  - 2021///
CY  - United Kingdom
PB  - Nature Research
KW  - AGROVOC
KW  - Crop production
KW  - Maps
KW  - China
N1  - Peer review; Open Access
N2  - Northeast China is the leading grain production region in China where one-fifth of the national grain is produced; however, consistent and reliable crop maps are still unavailable, impeding crop management decisions for regional and national food security. Here, we produced annual 10-m crop maps of the major crops (maize, soybean, and rice) in Northeast China from 2017 to 2019, by using (1) a hierarchical mapping strategy (cropland mapping followed by crop classification), (2) agro-climate zone-specific random forest classifiers, (3) interpolated and smoothed 10-day Sentinel-2 time series data, and (4) optimized features from spectral, temporal, and texture characteristics of the land surface. The resultant maps have high overall accuracies (OA) spanning from 0.81 to 0.86 based on abundant ground truth data. The satellite estimates agreed well with the statistical data for most of the municipalities (R2 ≥ 0.83, p < 0.01). This is the first effort on regional annual crop mapping in China at the 10-m resolution, which permits assessing the performance of the soybean rejuvenation plan and crop rotation practice in China
UR  - https://doi.org/10.1038/s41597-021-00827-9
T2  - Scientific Data
DO  - https://doi.org/10.1038/s41597-021-00827-9
ER  -