A 30-m annual corn residue coverage dataset from 2013 to 2021 in Northeast China

Data files are in ".tif" format.XY coordinate system: GCS_WGS_1984①Pixel values represent: values magnified 1000 times, '2013C.tif' represents 2013 pre-sowing CRC, '2013Q.tif' represents 2013 post-harvest CRC；②Li_CRC_2021.tif is the CRC of Songnen Plain in 2021 by Li et al.③Conservation Tillage Yearbook.xlsx is the area of conservation tillage recorded in the statistical yearbook④GEE.js is the code for the HISTARFM method of fusing images⑤SD_CRC_model.py is the code for CRC modeling⑥Reflectance Comparison Chart.ipynb is the code for Fig 4, Comparison chart of different CRC DATA.ipynb is the code for Fig 8, CRC_box_plot_changes.ipynb is the code for Fig 13

本数据集的数据文件格式为“.tif”。所用XY坐标系为GCS_WGS_1984（世界大地坐标系1984）。① 像素值为放大1000倍后的数值；其中'2013C.tif'代表2013年播种前的作物残体碳（Crop Residue Carbon，CRC），'2013Q.tif'代表2013年收获后的作物残体碳（CRC）；② Li_CRC_2021.tif 为Li等人发布的2021年松嫩平原作物残体碳数据集；③ Conservation Tillage Yearbook.xlsx 为统计年鉴中记载的保护性耕作面积数据；④ GEE.js 为HISTARFM影像融合方法的实现代码；⑤ SD_CRC_model.py 为作物残体碳建模代码；⑥ Reflectance Comparison Chart.ipynb 为图4的绘制代码；Comparison chart of different CRC DATA.ipynb 为图8的绘制代码；CRC_box_plot_changes.ipynb 为图13的绘制代码