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塔里木河下游是我国生态环境问题最为突出的地区之一。由于人类不合理的资源开发 ,导致该地区环境问题日益突出。本文结合塔里木河下游生态输水 ,通过近 3a的监测和取样分析 ,就生态输水前后塔里木河下游地下水水盐动态变化进行了分析。结果显示 :1 .生态输水后地下水位在时间上和空间上各有其变化规律 ,在时间上近河道水位响应快 ,远河道水位响应慢。在空间上在距河道不同距离和不同河段地下水上升的幅度不同 ;2 .输水后 ,地下水的盐分变化远比水位的变化要复杂 ,但是总体上看水质是好转的 ;3.鉴于输水后地下水在不同断面上响应程度的巨大差异 ,生态输水工作有必要继续开展。同时 ,有必要对输水的方式进行适当调整。
The lower reaches of the Tarim River is one of the most prominent ecological and environmental problems in China. Due to the irrational development of mankind’s resources, the environmental problems in the area have become increasingly prominent. In this paper, based on the ecological water conveyance in the lower reaches of the Tarim River, the dynamic changes of groundwater salt and water in the lower reaches of the Tarim River before and after the ecological water conveyance were analyzed through monitoring and sampling analysis in recent 3 years. The results show that: 1. After the ecological water conveyance, the groundwater table has its own variation in time and in space. In time, the water table near the river responds quickly and the water table in the far river responds slowly. The spatial extent of the rise of groundwater in different distances from the river and in different reaches is different; 2. The change of salinity of groundwater is much more complicated than the change of water level after water conveyance, but the water quality is generally improved; 3. After the groundwater response in different sections of the huge differences between the ecological water conveyance is necessary to continue. At the same time, it is necessary to make appropriate adjustments to the mode of water conveyance.