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均采用".tif"格式，其XY坐标系采用GCS_WGS_1984。① 像素值为原始数值经1000倍放大后的结果：其中"2013C.tif"代表2013年播种前的耕地残茬覆盖度（Crop Residue Cover，以下简称CRC），"2013Q.tif"代表2013年收获后的耕地残茬覆盖度；② "Li_CRC_2021.tif"为Li等人发布的2021年松嫩平原耕地残茬覆盖度数据；③ "Conservation Tillage Yearbook.xlsx"为统计年鉴中记录的保护性耕作面积；④ "GEE.js"为HISTARFM影像融合方法的实现代码；⑤ "SD_CRC_model.py"为耕地残茬覆盖度建模的实现代码；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。