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依据输水前后地下水埋深动态来评估孔雀河应急输水工程的实施效果。结果表明,输水显著减小了距河岸0~300m范围内的地下水埋深差异;地下水对应急输水的响应迅速,在输水结束后1周内地下水埋深趋于稳定;输水对地下水的横向影响范围超过垂直河岸300m;输水对地下水位的抬升效果显著,上游普惠区段抬升2.54m,中游尉犁区段抬升3.18m。输水后上游普惠区段平均地下水埋深8.05m,达到了荒漠河岸林胡杨和柽柳生存的地下水埋深阈值;中游尉犁区段平均地下水埋深为11.69m,天然植被仍无法有效利用,因此孔雀河生态输水必须持续性、常态化已达到生态恢复的目的。
According to the dynamics of groundwater depth before and after water conveyance, the implementation effect of Peacock River emergency water conveyance project was evaluated. The results showed that the water diversion significantly reduced the difference of groundwater depth within 0 ~ 300m from the river bank. The response of groundwater to emergency water delivery was rapid, and the groundwater depth tended to be stable within 1 week after water delivery. The lateral influence range is 300m above the vertical river bank. The effect of water conveyance on the groundwater level is significant. The upstream Pratt & Whitney section rises 2.54m and the middle Yüli section lifts 3.18m. After the water conveyance, the mean depth of groundwater in the upstream Pratt & Whitney section was 8.05m, which reached the threshold of groundwater depth for surviving Populus euphratica and Tamarix L. in the desert. The average depth of groundwater in Weili section in the middle reaches was 11.69m, so the natural vegetation could not be utilized effectively. Peacock River ecological water transport must be sustained, normalization has reached the purpose of ecological restoration.