丹江口水库运用对下游水文情势影响研究
发布时间：2019-06-21 03:47
【摘要】：为了分析丹江口水库建成投入运行以后对下游河道水文情势的影响,利用黄家港站、襄阳站和皇庄站1961~2000年日平均流量资料,采用水文变化指标法(IHA)和变化范围法(RVA),定量分析了丹江口水库运用前后汉江中下游河道水文情势变化及改变程度。结果表明,在5组IHA水文指标中,除年极端流量发生时间变化不大以外,其他各组水文指标值均发生了较显著变化;黄家港站、襄阳站和皇庄站的整体水文改变度分别为中度、低度和中度改变,这对汉江中下游河道生态系统稳定性和生物多样性带来不利影响。研究成果为丹江口水库生态调度和汉江中下游河道生态修复提供了科学依据。
[Abstract]:In order to analyze the influence of Danjiangkou Reservoir on the hydrological situation of the lower reaches of the river after the completion and operation of Danjiangkou Reservoir, using the daily average flow data of Huangjiagang Station, Xiangyang Station and Huangzhuang Station from 1961 to 2000, the hydrological change index method (IHA) and the variation range method (RVA), were used to quantitatively analyze the hydrological situation and the degree of change in the middle and lower reaches of Hanjiang River before and after the operation of Danjiangkou Reservoir. The results showed that among the five groups of IHA hydrological indexes, except for the occurrence time of annual extreme flow, the hydrological index values of other groups changed significantly, and the overall hydrological changes of Huangjiagang station, Xiangyang station and Huangzhuang station were moderate, low and moderate, respectively, which had adverse effects on the stability and biodiversity of river ecosystem in the middle and lower reaches of Hanjiang River. The research results provide scientific basis for ecological operation of Danjiangkou Reservoir and ecological restoration of middle and lower reaches of Hanjiang River.
【作者单位】： 三峡大学水利与环境学院;水资源安全保障湖北省协同创新中心;南京水利科学研究院;长江水利委员会汉江水文水资源勘测局;
【基金】：国家自然科学基金项目(51479222,51509141) 湖北省自然科学基金项目(2012FFB03802)
【分类号】：TV697.21
[Abstract]:In order to analyze the influence of Danjiangkou Reservoir on the hydrological situation of the lower reaches of the river after the completion and operation of Danjiangkou Reservoir, using the daily average flow data of Huangjiagang Station, Xiangyang Station and Huangzhuang Station from 1961 to 2000, the hydrological change index method (IHA) and the variation range method (RVA), were used to quantitatively analyze the hydrological situation and the degree of change in the middle and lower reaches of Hanjiang River before and after the operation of Danjiangkou Reservoir. The results showed that among the five groups of IHA hydrological indexes, except for the occurrence time of annual extreme flow, the hydrological index values of other groups changed significantly, and the overall hydrological changes of Huangjiagang station, Xiangyang station and Huangzhuang station were moderate, low and moderate, respectively, which had adverse effects on the stability and biodiversity of river ecosystem in the middle and lower reaches of Hanjiang River. The research results provide scientific basis for ecological operation of Danjiangkou Reservoir and ecological restoration of middle and lower reaches of Hanjiang River.
【作者单位】： 三峡大学水利与环境学院;水资源安全保障湖北省协同创新中心;南京水利科学研究院;长江水利委员会汉江水文水资源勘测局;
【基金】：国家自然科学基金项目(51479222,51509141) 湖北省自然科学基金项目(2012FFB03802)
【分类号】：TV697.21
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