基于多源数据的合肥市老城区街道绿化空间研究  

Research on the Greening Space of Old City Streets in Hefei Based on Multi-Source Data

作　　者：郑杰 鲁珊 郑志元[2] ZHENG Jie;LU Shan;ZHENG Zhiyuan(Hefei Urban Planning and Design Institute,Hefei 230041;School of Architecture and Art,Hefei University of Technology,Hefei 230601)

机构地区：[1]合肥市规划设计研究院,合肥230041 [2]合肥工业大学建筑与艺术学院,合肥230601

出　　处：《北京建筑大学学报》2023年第5期46-55,共10页Journal of Beijing University of Civil Engineering and Architecture

基　　金：安徽省哲学社会科学规划项目(AHSKQ2021D145)。

摘　　要：基于百度路网、街景图像及人口热力等多源数据,以合肥市老城区为例,通过绿视率指标与其他指标进行叠加分析,将城市街道被感知程度与实际需求程度相对比,识别出街道绿色空间不足的空间点,并在此基础上对比分析6条典型街道之间的差异性及共性的影响因素。研究发现:合肥市老城区街道绿化率平均值为18.02%,绿化感知属于一般水平;老城区绿化建设呈现两极分化的状态,大部分街道绿视率分布在5.00%~15.00%,属于较差水平,且人口活力越高的区域,平均绿视率越低;老城区街道接近城市公园绿地的绿视率普遍偏高;不同等级街道的绿视率差异化显著。影响街道绿视率的因素较多,其中街道断面设计、植物搭配类型为主要因素,绿视率与天空可视域呈现中等相关关系。最后对绿视率在城市规划中的应用及文章研究的局限性展开探讨与展望。Based on multiple data sources including Baidu road network,street view images and population density,taking the old city area of Hefei as an example,through overlay analysis of the visible green index and other indicators,the perceived level of urban streets and the actual demand level are compared.Spatial points with insufficient green space on streets are identified,and the differences and common factors among six typical streets are analyzed.The study shows that:the average green coverage rate of streets in the old city area of Hefei is 18.02%,and the perception of green space is at a moderate level.the green construction of streets in the old city area shows a two-tiered differentiation,with most streets having a visible green index distribution between 5.00%to 15.00%,which is a relatively poor level.Moreover,the higher the population vitality in an area,the lower the average visible green index.The visible green index of streets near urban parks and green spaces is generally higher,and there is a significant difference in the visible green index among streets of different levels.There are many factors that affect the visible green index,among which the street section design and plant pairing type are the main factors,and there is a moderate correlation between the visible green index and the sky visibility.Finally,the application of the visible green index in urban planning and the limitations of the research are discussed and the prospects for future research are presented.

关 键 词：街道 绿视率 街景图像 合肥老城区 

分 类 号：TU984.2[建筑科学—城市规划与设计]