塔里木河流域综合治理的生态效应

Ecological effect of synthesized governing in Tarim River valley

结合塔里木河下游输水和中游段输水堤防建设工程,在下游、中游分别设置了9个和3个地下水位和地下水化学特征监测断面,并在中游的3个断面和下游的6个典型断面进行了植物样方调查,以分析综合治理工程的实施对地下水和植被的影响.结果表明,在生态输水影响下,塔里木河下游断流河道两岸地下水位抬升显著,植被的盖度有明显增加,胡杨的当年生枝叶都表现出积极变化;塔里木河中游地区在建有输水堤防又有生态闸的断面地下水位、水质以及植被综合优势比均明显好于无生态闸断面.

Binding the water transport dike building, 9 and 3 groundwater places and chemical characters monitoring section were set up in lower and middle reaches respectively. The vegetation shape in 3 sections of middle reach and 6 typical sections of lower reaches were investigated to analyze the influence on groundwater and vegetation by implementation of synthesized administer engineering. Under the influence of ecological water transport, the groundwater place in two banks of Tarim River lower reach enhanced markedly, the vegetation covering degree increased obviously, the growth of branches and leaves of popular diversipoha at that year all expressed positive change groundwater place, water quality and vegetation synthesized preference ratio. In Tarim River middle reach area with water transport dike and also ecological brake section were all better obviously than that without ecological brake section.