60年来我国主要粮食作物适宜生长区的时空分布
宁晓菊, 张丽君, 秦耀辰, 刘凯

Temporal-spatial Distribution of Suitable Areas for Major Food Crops in China Over 60 Years
Xiaoju Ning, Lijun Zhang, Yaochen Qin, Kai Liu
图2 60年来小麦适宜生长区的时空变化
Fig.2 Temporal-spatial distribution of areas suitable for wheat from 1953 to 2012