Different Flooding Behaviors Due to Varied Urbanization Levels within River Basin: A Case Study from the Xiang River Basin, China
Different Flooding Behaviors Due to Varied Urbanization Levels within River Basin: A Case Study from the Xiang River Basin, China
复制标题
流域内城市化水平不同导致的不同洪水行为：以中国湘江流域为例
DOI：
10.1007/s13753-018-0195-4
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发表时间：
2018-11
影响因子：
4
通讯作者：
Xu Wei
中科院分区：
文献类型：
--
作者：
Du Juan;Cheng Linlin;Zhang Qiang;Yang Yumeng;Xu Wei
由于人口快速增长而导致的蓬勃发展的城市化导致更多的不透水区域，更少的渗透，因此更大的洪峰和径流。明确不同城市化水平和扩展程度区域的洪水响应对区域城市规划具有重要意义。利用水文工程中心-水文模拟系统（HEC-HMS）模型，比较了湘江流域上、中、下游城市化过程对洪水响应的影响。从2005年到2015年，与上中部相比，下西部地区的城市化水平和强度更高，城市地区的总体扩张率为112.8%。HEC-HMS模型的模拟结果表明，由于20世纪80年代至2015年XRB的快速城市化，洪峰流量和流量有所增加。这种快速增长在较低的XRB中尤其如此。城市化对黄河下游洪峰流量的影响大于对洪量的影响，这进一步证实了城市化对洪峰流量的强化作用。城市化对黄河下游洪水量的影响从上游到下游逐渐增大，这主要是由于下游径流的累积。该研究可为流域土地利用和城市规划以及防洪减灾提供参考。
Booming urbanization due to a fast-growing population results in more impervious areas, less infiltration, and hence greater flood peak and runoff. Clear understanding of flood responses in regions with different levels and expansions of urbanization is of great importance for regional urban planning. In this study, comparison of flooding responses to urbanization processes in terms of flood peak and runoff volume in the upper, middle, and lower Xiang River Basin (XRB), China, was carried out using the Hydrologic Engineering Center-Hydrologic Modeling System (HEC-HMS) model. From 2005 to 2015, urbanization level and intensity were higher in the lower XRB compared to the upper and middle XRB, and the overall expansion rate of urban areas was 112.8%. Modeling results by the HEC-HMS model indicate elevated flood peak discharges and volumes due to fast urbanization in the XRB from the 1980s to 2015. This rapid increase is particularly the case in the lower XRB. The study also revealed different hydrological responses of flood regimesurbanization tends to have larger impacts on peak flood flow rather than on flood volume in the lower XRB, which further corroborated urbanization-induced intensifying flood processes in terms of peak flood flow. Urbanization has increasing impacts on flood volume from the upper to the lower XRB, which can be attributed to accumulated runoff down the river system. This study provides a reference for basin-wide land use and urban planning as well as flood hazard mitigation.
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影响因子：
2.7
作者：
W. Shuster;J. Bonta;H. Thurston;E. Warnemuende;Douglas R. Smith
通讯作者：
W. Shuster;J. Bonta;H. Thurston;E. Warnemuende;Douglas R. Smith
影响因子：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
Shixia Zhang;Yakun Guo;Ziwen Wang