论文部分内容阅读
1.发展节水农业的紧迫性我国水资源整体上短缺,我国年平均降水总量约6.188万亿m3,年水资源总量约2.7万亿m3,居世界第六位,但人均
1. The urgency of developing water-saving agriculture The overall shortage of water resources in our country is about 6.188 trillion m3. The annual total amount of water resources is about 2.7 trillion m3, ranking the sixth in the world, but the average per capita