基于改进图论与水文模拟方法的河网水系连通性评价模型  

Evaluation model of river network hydrologic connectivity based on improved graph theory and hydrological simulation

作　　者：高玉琴[1] 汤宇强 肖璇[1] 陈鸿玉[1] 刘云萍 周桐[1] GAO Yuqin;TANG Yuqiang;XIAO Xuan;CHEN Hongyu;LIU Yunping;ZHOU Tong(College of Water Conservancy ＆ Hydropower Engineering,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学水利水电学院,江苏南京210098

出　　处：《水资源保护》2018年第6期33-37,共5页Water Resources Protection

基　　金：国家自然科学基金(51309076);中央高校业务费科技前瞻性研究专项(2014B05814);江苏省优势创新平台(3014-SYS1401)

摘　　要：为弥补图论法无法考虑水量动态传输能力的缺陷,在运用图论连通度理论评价河网水系连通状况的基础上,通过建立HEC_HMS水文模型模拟河道流量,构造表征河网水量交换能力的连通因子,构建了基于改进图论与水文模拟方法的河网水系连通性评价模型。秦淮河流域河网水系连通状况实例评价结果表明,秦淮河流域水系连通度由2000年的0.0044下降至2010年的0. 0029,且2010年水系连通度水平不高,符合实际情况,模型评价结果合理可靠。To make up for the deficiency that graph theory can not consider the dynamic transmission capacity, the HEC_HMS hydrological model is set up to simulate the flow, and construct the connectivity factor that characterizes the exchange capacity of river network and the hydrologic connectivity evaluation model based on improved graph theory and hydrological simulation on the basis of using graph theory about connectivity degree to evaluate the connectivity condition of river network. The case evaluation results of the river network hydrologic connectivity in the Qinhuai River Basin indicate that the connectivity degree of Qinhuai River Basin decreased from 0. 004 4 in 2000 to 0. 0029 in 2010, and the river network hydrologic connectivity level is not high in 2010, which is in line with the actual situation. The results of this evaluation model are reasonable and reliable.

关 键 词：河网 水系连通陛 改进图论 水文模拟 评价模型 秦淮河流域 

分 类 号：P343.1[天文地球—水文科学]