水资源保护2016，Vol.32Issue(2)：26-29,34,5.DOI:10.3880/j.issn.1004-6933.2016.02.006
基于图论的平原河网区水系连通性评价--以常熟市燕泾圩为例
Evaluation of plain river network connectivity based on graph theory:a case study of Yanjingwei in Changshu City
摘要
Abstract
The implications of river network connectivity are discussed in this paper.River network connectivity is classified into two types: structural connectivity and hydraulic connectivity.Based on the graph theory, the river network is generalized as a graph model.According to the reachability characteristic of graph models, the river network’s structural connectivity is quantitatively evaluated by Matlab.With consideration of the difference in water conveyance capacity between rivers, the reciprocal of the resistance of river flow is regarded as the flow distribution, the adjacency matrix is built with ArcGIS, and the river network ’ s hydraulic connectivity is quantitatively evaluated with Matlab.A case study of the Yanjingwei Plain River Network, in Changshu City was conducted.The river network connectivity before and after river system planning was quantitatively evaluated.The results show that both the structural connectivity and the hydraulic connectivity of the river network increased after planning.关键词
平原河网/图论/结构连通性/水力连通性/水流阻力Key words
plain river network/graph theory/structural connectivity/hydraulic connectivity/flow resistance分类
建筑与水利引用本文复制引用
陈星,许伟,李昆朋,张其成,林松..基于图论的平原河网区水系连通性评价--以常熟市燕泾圩为例[J].水资源保护,2016,32(2):26-29,34,5.基金项目
江苏省科技支撑计划（BE2011697）；苏州市水利科技计划 （）
