基于最小成本路径和线密度法的常州市主城区通风廊道研究  

Research on Ventilation Corridors in the Main Urban Area of Changzhou Based on Combining Least Cost Path and Line Density Method

作　　者：葛兰凤 陈振杰[1,2,3] Ge Lanfeng;Chen Zhenjie

机构地区：[1]南京大学地理与海洋科学学院 [2]自然资源部国土卫星遥感应用重点实验室 [3]江苏省地理信息技术重点实验室

出　　处：《城市建筑》2024年第17期1-6,共6页Urbanism and Architecture

基　　金：国家自然科学基金面上项目(42171396)。

摘　　要：通风廊道的构建有利于改善城市的通风环境。文章综合考虑城市形态和地表温度的影响,使用最小成本路径和线密度法,基于多种权重设置情景进行城市通风廊道的识别,并结合开敞空间分布特征分析识别结果的建设可行性,以期为常州市主城区风环境优化建设提供参考。结果表明:基于最小成本路径和线密度法,能够较好地识别城市通风廊道的位置。东北偏东风、东风和东南偏东风3种盛行风向下共识别得到18条通风廊道,主要依托现有河流、公园、道路、耕地林地等引导空气流动。现阶段廊道的建设可行性均值东北偏东风和东南偏东风略优于东风,空间分布呈现南部和中部高、北部低的特征。The construction of ventilation corridors is conducive to improving the urban ventilation environment.Considering the influence of urban morphology and land surface temperature comprehensively,the least cost path and line density method were used to identify urban ventilation corridors based on multiple weight combination scenarios,and the construction feasibility of the identification results was analyzed combined with the distribution characteristics of open space,in order to provide references for wind environment optimization construction main urban area in Changzhou.The results show that based on the least cost path and line density method,the location of urban ventilation corridors can be well identified.Under the three prevailing winds of east-northeast,east and east-southeast,18 ventilation corridors are identified to guide air flow mainly by relying on the existing rivers,parks,roads,cultivated land and woodland.At the present stage,the mean value of corridor construction feasibility in east-northeast and east-southeast is slightly better than that of the east,and the spatial distribution is high in the south and middle and low in the north.

关 键 词：通风廊道 最小成本路径 线密度 地表粗糙度 地表温度 

分 类 号：TU984[建筑科学—城市规划与设计]