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新疆塔里木河下游生态输水对地下水位和水质的影响
Effects of Ecological Stream Water Transfusion on Groundwater Level and Quality in the Lower Reaches of the Tarim River

查看参考文献12篇

文摘 本文结合塔里木河下游六次生态输水过程(2000年～2004年)和对40眼地下水监测井水质分析资料,重点研究了塔里木河下游生态输水对地下水位和地下水质的影响以及地下水位与水质的变化关系.研究结果表明:塔里木河下游地下水位和水质状况随六次间歇性生态输水发生明显变化.河道两侧地下水位埋深在输水过程中明显抬升,由输水前的8m～11m,抬升到5m～6m;地下水质表现为:在输水初期,地下水水化学成分中的主要离子含量和矿化度都较高,随着生态输水的实施,矿化度开始下降,下降幅度先快后慢.其中在距河道不同位置处,由于受输水影响强度的差异和地下水位抬升状况的变化,地下水矿化度的变化特点不尽一致.但总体表现为随着地下水位的抬升地下水矿化度不断下降的趋势.
其他语种文摘 The Tarim River is the largest continental river in China. It is 1 321 km in length, and its catchment area is 102 X 10 km . The Tarim River Basin is rich in such resources as land, sunshine, oil and natural gas, and it is also an important base for cotton production and petrochemical industry and a strategic energy supply region in China in 21st century. Historically, the inflow of the lower reaches of mainstream of the Tarim River was plenitudinous, the natural vegetation mainly composed of Populus euphratica and Tamarix spp. grew luxuriantly, and a natural "green corridor" of 3km ~ 10km in width formed in the eastern part of the Tarim Basin. The natural ecological process in the river basin has been significantly changed due to the change of natural conditions and the excessive exploitation and utilization of water resources since recent 50 years. The inflow of the lower reaches was sharply reduced since the 1990s, and the stream of the river section downstream from Yengisu was completely cut off. Because of the stream cut-off of the river section of 321 km in length at the lower reaches of the Tarim River, a sharp drawdown of groundwater level occurs, the natural vegetation relying on groundwater is degenerated, the forests of Populus euphratica are degenerated in large areas, wind erosion and land desertification become more serious, the ecosystems are seriously damaged. In order to save the "green corridor", Ministry of Water Resources and People' s Government of Xinjiang Uygur Autonomous Region determined to implement the project of transfusing stream water into the lower reaches of the Tarim River so as to restore the ecology in 2000. In this paper, the effects of ecological stream water transfusion on groundwater level and groundwater quality and the relationship between the change of groundwater level and groundwater quality in the lower reaches of the Tarim River are analyzed based on the monitoring data of the 6 times of ecological stream water transfusion and of 9 sections with 40 groundwater-monitoring wells in the lower reaches of Tarim River during the period from 2000 to 2004. The results showed that the groundwater level and groundwater quality in the lower reaches of the Tarim River have been significantly changed since implementing the project. The groundwater level along both riversides of the watercourse has been risen from 8m～11m in depth before implementing the project to 5m～6m; the contents of the main ions and mineralization of groundwater have been decreased. The extents of groundwater level rise and groundwater mineralization decrease are different in the regions with different distances away from the watercourse.
来源 资源科学 ,2006,28(5):157-163 【核心库】
关键词 地下水位 ; 地下水水质 ; 生态输水 ; 塔里木河下游
地址

中国科学院新疆生态与地理研究所, 乌鲁木齐, 830011

语种 中文
文献类型 研究性论文
ISSN 1007-7588
学科 环境保护管理
基金 国家自然科学基金 ;  中国科学院知识创新工程项目
文献收藏号 CSCD:2431057

参考文献 共 12 共1页

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引证文献 13 篇

1 文琦 银川市水资源胁迫与生态系统健康状况研究 资源科学,2008,30(2):247-253
被引 2 次

2 玉米提·哈力克 胡杨部分生态指标对塔里木河下游应急输水的响应 资源科学,2009,31(8):1309-1314
被引 8 次

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