摘要
在健康城市理念的引导下,城市绿地建设愈发注重人本尺度,与城市居民生活关系最密切的街道环境的空间绿化显得尤为重要.以杭州市中心城区为研究对象,基于图像识别技术对城市街道环境绿量进行测算,结合Python对Keep爬取的居民运动线路,对街道环境绿量与居民运动偏好路径进行空间分布研究并探讨两者的空间相关性.结果表明:①杭州中心城区街道环境绿量呈现出由西南向东北逐渐衰减的趋势,同时西湖风景区内道路、滨水道路、低等级道路环境绿量更高;②城市居民在街道上的运动路径偏好于环境绿量高的街道,基本呈现空间的正相关性,但还受限于其所在的位置对于居民区的可达性.运动偏好路径也是一种无意识的、对城市街道绿地宜人性的评判,对于指导构建更高品质的城市街道空间具有重要的启示意义.
Under the guidance of the Healthy City Concept,the construction of urban green space pays increasing attention to human-scale,and the space greening of the street environment which is most closely associated with the life of urban residents is particularly important.Taking the downtown area of Hangzhou as the research object,this paper calculates the street visible green index based on image recognition technology,explores the spatial distribution of the street visible green index and the preferred route of residents'movement by combining the residents'movement routes taken by Keep,and discusses the spatial correlation between them.The results demonstrated that:①The street visible green index in the central urban area of Hangzhou presented a gradual decrease from southwest to northeast,and the street visible green index of roads in West Lake Scenic Area,waterfront roads and low-grade roads was higher.②The movement path of urban residents in the street preferred to the street with high street visible green index.It basically presented a positive spatial correlation,but was still limited by the accessibility of their location to residential areas.The preferred route of movement is also a kind of nonconscious evaluation for the amenity of urban street green space,which has important implications for guiding the construction of higher quality urban street space to support the daily movement behavior of urban residents.
作者
白钊成
齐君
唐雪琼
BAI Zhaocheng;QI Jun;TANG Xueqiong(School of Landscape Architecture and Horticulture,Southwest Forestry University,Kunming 650224,China;School of Geography and Ecotourism,Southwest Forestry University,Kunming 650224,China)
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2022年第8期185-194,共10页
Journal of Southwest University(Natural Science Edition)
基金
国家自然科学基金青年项目(51908477)
云南省科技计划项目基础研究专项青年项目(202001AU070115).
关键词
图像识别
绿视率
街道绿化
运动路径
image recognition
visible green index
street greenery
exercise path
