中国耕地保护效率演进及其粮食安全效应

王兆峰, 张先甜, 吴卫

Evolution of cultivated land protection efficiency and its food security effect in China

WANG Zhaofeng, ZHANG Xiantian, WU Wei

地理学报 . 2026, (5): 1452 -1470 . DOI: 10.11821/dlxb202605012