基于改进RVA法的水利工程对塔里木河生态水文情势影响评估

发布时间：2018-02-03 21:54

本文关键词： 塔里木河流域 IHA/RVA方法水文指标改变程度生态水文情势水利工程影响定量评估　出处：《河海大学学报(自然科学版)》2017年03期 　论文类型：期刊论文

【摘要】：采用水文变异指标及变化范围法(IHA/RVA)定量评估塔里木河上游水库运行后,干流代表站的水文指标改变程度及其生态影响。研究结果表明:水库运行导致塔里木河干流水文情势发生高度改变,改变度高达60%以上;指标体系中3月和6月平均流量,最小1 d和3 d流量、最大30 d和90 d流量,年发生低流量次数及逆转次数等指标发生严重变异。水库运行对塔里木河周边生态系统影响较大,迫切需要对河流的流量进行适时调控,实现区域经济和生态环境保护的协调发展。
[Abstract]:The method of hydrological variation index and range of variation was used to quantitatively evaluate the operation of the reservoir in the upper reaches of Tarim River. The change degree of hydrological index and its ecological impact on the representative station of the main stream. The results show that the operation of the reservoir results in the high change of the hydrological situation in the main stream of Tarim River, the degree of change is as high as 60%; In the index system, the average flow was 1 d and 3 d, and the maximum flow was 30 d and 90 d in March and June. The annual occurrence of low discharge times and reversal times and other indicators have serious variation. Reservoir operation has a great impact on the ecosystem around the Tarim River, so it is urgent to adjust and control the flow of the river in good time. To realize the coordinated development of regional economy and ecological environment protection.
【作者单位】：河海大学水文水资源学院;石河子大学水利建筑工程学院;河海大学文天学院;新疆塔里木河流域管理局;
【基金】：国家自然科学基金(41371052,U1203282) 水利部公益性行业科研专项(201501059) 江苏省“青蓝”工程项目([2014]4) 江苏省高校优秀中青年教师和校长境外研修项目(苏教师[2015]35) 江苏省博士后科研资助计划(1401095C)
【分类号】：P333.5;TV697
【正文快照】： 随着区域经济发展和社会的进步,人类对水资源的开发利用程度不断提高,改变了河流天然的水文情势,其中水利工程对受控河流水文情势的改变最为显著,且改变程度随着河流开发利用程度的增加而逐渐累积,并由此产生一系列生态水文效应[1]。塔里木河干流上游修建平原水库,大量拦蓄河

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