河西走廊地下水资源减少的原因

根据调查事实认为:在短时限上,虽然气候波动会引起气侯变暖、雪线升高、冰川退缩,进而影响正常的水循环,但这并不是河西走廊地下水资源减少的主要原因。导致河西走廊地下水水位下降的真正原因是;(1)过量抽取;(2)灌溉面积的扩大;(3)人口的增加;(4)耗水工矿企业的增加;(5)草场超载。为了控制地下水水位的下降,必须合理开采,科学利用,控制人口的增长,提高重复利用率,节约用水。

The Reasons of the Decreasing of Underground Water Stock in Hexi Corridor

Although climatic fluctuation may have an influence on water cycle, this is not the dominate reason of the decreasing of underground water stock in Hexi corridor.The real reasons are; 1) overextraction of underground water ; 2) increasing of irrigational lands; 3) increasing of population; 4) industrialization; 5) overloading of grasslands.In order to stop the downfall of underground water level, the authors suggest that the exploitation and utilization of underground water should be scientifical and rational, the rate of reutilization of underground water should be enhanced, the population should be under control, and the water should be saving.