过去2000年中国农耕区拓展与垦殖率变化基本特征
方修琦, 何凡能, 吴致蕾, 郑景云
General characteristics of the agricultural area and fractional cropland cover changes in China for the past 2000 years
FANG Xiuqi, HE Fanneng, WU Zhilei, ZHENG Jingyun
地理学报
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2021, (7): 1732
-1746
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DOI: 10.11821/dlxb202107012
