从水资源利用现状谈节水灌溉技术的重要性

Importance of Water saving Irrigation Techniques

我国水分利用率低 ,用水浪费 ,用水严重亏缺。内蒙古是我国水资源严重亏缺省 (区 )之一 ,农业灌溉用水量为 12 66亿 m3 ,占全区开发用水量的 87.9% ,推广节水灌溉技术 ,提高水分利用率远较其他地区重要。推广以色列节水灌溉技术后 ,仅用现在的用水量 ,即可使灌溉面积由现在的 0 .0 1亿hm2增加到 0 .0 2亿 hm2 ,并可使单产大幅度提高。

Inner Mongolia is one of the provinces seriously short of water resources in China, which the water using capacity for agricultural irrigation are 1266 hundreds millions m 3,made up 87.9 percent of total water using capacity. It is more important to popularize the water saving irrigation techniques and improve the water utilization ratio than other regions. After popularizing the Israel Water saving irrigation techniques, the irrigation area can be increased to 2 millions hm 2 from the present 1 million hm 2 only using the present water using capacity, and the per unit area yield also can be greatly increased.