近20年河北省几种高耗水作物的水分利用效率分析

史梦霞, 张佳笑, 石晓宇, 褚庆全, 陈阜, 雷永登

Water use efficiency of several water-intensive crops in Hebei province in recent 20 years

SHI Meng-Xia, ZHANG Jia-Xiao, SHI Xiao-Yu, CHU Qing-Quan, CHEN Fu, LEI Yong-Deng

图4 1999-2018年河北省6种作物的区域总灌溉需水量变化

Fig. 4 Variation of regional total irrigation water demand of six crops in Hebei province from 1999 to 2018