宁夏引黄灌区抗旱打井对绿洲生态的影响

The influence of digging well to combat drought on ecology of oasis in Ningxia irrigation area

近年黄河来水减少,宁夏引黄灌区灌溉用水减少了30%,灌区实施抗旱打井工程,造成灌区地下水位下降,个别湖泊出现干涸;在集中连片的井灌区,周边居民的生活自备井、手压井取水困难.文章分析了灌区地下水开发利用的潜力和未来引黄水量减少后对地下水位及灌区绿洲生态的影响,提出应保持适宜的引黄水量并合理开发利用地下水资源,以维系灌区绿洲生态平衡.

With water amount coming from Yellow River reduced,the water flow from Yellow River to Ningxia irrigation area has reduced 30%. Digging wells to combat drought results in the decrease of underground water level in the irrigation area and causes individual lakes dry out. In well group irrigation area, it's difficult for local residents to get water from their self provided well or hand pressed well. This article analyzes the exploitative potential of underground water in irrigation area and the influence on underground water level and ecology of oasis with the decrease in irrigation amount from Yellow River,and suggestes to make good use of irrigation water from Yellow River and rationally to exploit underground water in order to keep the balance of the ecology of oasis in irrigation area.