应对资源环境约束的超大城市绿道选线规划方法研究——以上海市为例

摘要

Shanghai,as a national mega city,has shortage in land resources and is bound by local environment,so that the greenway planning is facing difficulties.In this paper,we analyze the factors that affect the geenway planning in Shanghai,and put forward optimization based on the path planning model.According to the grenway planning optimization method,three kinds of greenway functions have been determined,namely the ecological greenway,the landscape greenway and the traffic grenway.By identifying important control nodes for geenway of each type,and analyzing construction characteristics of the three kinds of greenway,three minimum resistance models have been established respectively,and ultimately carried out the path recognition model which can help to path planning of greenway.%上海作为全国特大城市,其用地资源紧张,环境约束性强,绿道选线规划存在一定困难.分析影响上海市绿道规划的多种资源约束因素,在借鉴已有绿道规划方法的基础上,优化基于路径识别方法的绿道规划新方法.根据绿道规划优化方法,确定适宜上海城市的3种绿道功能,即生态功能绿道、景观功能绿道和交通功能绿道.按照绿道功能选择每种类型绿道的重要控制节点,且依据3种绿道构建的要素特性,分别建立3种最小阻力模型,最终生成绿道路径识别方法,分别对生态型绿道、景观型绿道和交通型绿道进行规划路径识别.