水资源保护2018，Vol.34Issue(1)：18-23,6.DOI:10.3880/j.issn.10046933.2018.01.04
基于改进图论法的平原河网水系连通性评价
Evaluation of plain river network hydrologic connectivity based on improved graph theory
摘要
Abstract
Based on improved graph theory , the river network was generalized by a graph model .Considering the influence of water quantity on the hydrologic connectivity of river network , the connectivity factor reflecting the water quantity index was taken as the weight and the quantitative evaluation model of hydrologic connectivity degree was built .MATLAB was used to calculate the river network weighted connectivity degree , and the quantitative evaluation of river network hydrologic connectivity was conducted .Taking the Qinhuai River Basin as an example , the HEC-HMS hydrological model was established and the short-term and long-term floods were simulated .The connectivity degree of the river network in the basin under different scale floods was analyzed .The connectivity was graded according to the evaluation results .The results show that the flood volume and the connectivity degree are basically linear . The short-term flood has a poor connectivity degree compared to the long-term flood . The evaluation model has good applicability and reliability .关键词
改进图论法/平原河网/水系连通性/水量动态评价Key words
improved graph theory/plain river network/hydrologic connectivity/water quantity dynamic evaluation分类
建筑与水利引用本文复制引用
高玉琴,肖璇,丁鸣鸣,汤宇强,陈鸿玉..基于改进图论法的平原河网水系连通性评价[J].水资源保护,2018,34(1):18-23,6.基金项目
国家自然科学基金(51309076) （51309076）
中央高校业务费科技前瞻性研究专项(2014B05814) （2014B05814）
江苏高校优势学科建设工程资助项目 （）
