浅析塔里木河下游绿色走廊输水后生态与环境的变化

由于多种原因,塔里木河下游大西海子水库以下350km河道断流近30年,地下水位下降,植被衰败,塔里木河下游绿色走廊生态恶化趋势严重.为了遏制生态劣变的趋势,保证在必要的工程实施完成前维持和保护现有植被,从2000年4月开始至2004年7月,由塔里木河流域管理局与巴州、农二师共同组织6次向塔里木河下游生态应急输水.输水后塔里木河下游绿色走廊生态与环境发生了一系列动态变化,结合实测数据进行初步分析,认为塔里木河干流上中游林草植被得到有效保护和恢复,下游生态与环境得到初步改善.

Eco-environment changes after water diversion to "Green Corridor" at lower reaches of Tarim river

Due to various reasons, river channels that below 350km of the Daxihaizi reservoir at the lower reaches of the Tarim River has been dried up for nearly 30 years, as a result ecological degradation becomes worse in the "Green Corridor" at the lower reaches of the Tarim River and groundwater level drop and vegetation ruin. For the purpose of stopping the tendency of ecological worsening and sustaining the current vegetation before necessary engineering measures being taken, from April 2000 to July 2007, six emergency water diversions were implemented by Tarim Management Bureau. After water diversion, a series dynamic changes happened in the eco-environment of the Green Corridor at the lower reaches of the Tarim River. According to analysis on real observed information. Eco-environment at the lower reaches has been improved. Moreover, grass coverage in the middle and upper reaches of the main stream of the Tarim River has been effectively protected.