reduced level of water

However, in recent years, the discharge of some location of Jiuzhai Valley has obviously reduced, the lake water level dropped, the discharge of waterfall withered.

但近年来九寨沟地区局部地段水量明显减少，湖泊水位下降，瀑布水量萎缩。

Compared with bare soil ( ck), planting Bahia grass on level bench terrace wall was the most effective method to conserve soil and water, it reduced average runoff coefficient by 85.19% and amount of soil erosion by 98.85%. Others also had various effects.

与全园裸露（对照）比较，水平梯田梯壁植草水土保持效果最佳，其平均径流系数减少85.19%，土壤侵蚀量减少98.85%，其他各处理也有不同程度防治水土流失的效果。

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.

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；