摘要
公园绿地作为城市绿地系统中的重要组成部分,不仅提供了雨洪管理、空气净化、生态维护等自然生态功能,也在增强休闲体验、加强邻里交流、影响房地产价值等社会经济效益方面发挥着重要作用。但是现阶段评价公园绿地可达性的方法存在视角与指标单一性等问题。空间句法理论的应用为公园布局空间研究提供了定量分析评价的有效工具。以杭州市绕城高速内16个综合公园为研究对象,运用空间句法理论,结合ArcGIS中的核密度分析法、缓冲区分析法,对杭州市综合公园的可达性进行分析,同时利用LBS大数据研究综合公园的实际使用强度,从实践应用角度进一步核验句法测度结果。研究表明:综合公园全局和局部的可达性均较好,主观可达性具有较大差异;综合公园空间分布与路网形态存在部分"错位"现象;工作日与休息日的公园使用效率呈现相似的"上升—平稳—下降"3个阶段,且休息日的绿地使用面积更高;LBS大数据的人口实际聚集与空间句法理论聚集的结论在局部尺度上略有差异,但整体空间趋于一致。根据研究成果提出,在未来规划建设中,可通过提高路网密度或增加公园数量来增强综合公园的整体可达性。
Park green space,an important component of the urban green space system,provides natural ecological functions such as rain flood management,air purification,and ecological maintenance,and plays an important role in improving leisure experience,strengthening neighborhood communication,and influencing real estate values in terms of social and economic benefits.However,there are some problems with the methods of evaluating the accessibility of green space in parks,such as the singularity of the perspectives and indexes.The space syntax theory provides an effective tool for quantitative analysis and evaluation of the park layout space researches.Taking 16 comprehensive parks within the Hangzhou Ring Highway as the objects,the research applies the space syntax theory,as well as the kernel density analysis and buffer analysis in the ArcGIS,to analyze the accessibility of comprehensive parks in Hangzhou.It also adopts the LBS big data to study the real use intensity of comprehensive parks,and further verify the result of syntactic measurement from the angle of practical applications.The results show that the overall and local accessibility of the parks is good,while the perceptual accessibility is quite different.The spatial distribution of comprehensive parks and the shapes of the road networks are partly"dislocated",and the use efficiency of the parks on working days and weekends presents three similar stages of"rising-steady-falling",the conclusion of population aggregation in LBS big data is slightly different from that in theory in the local scale,though the overall space tends to be consistent.According to the results,it proposes that the overall accessibility of the comprehensive parks can be enhanced by increasing the density of the road network or the number of parks.
作者
付益帆
杨凡
包志毅
FU Yifan;YANG Fan;BAO Zhiyi(School of Landscape Architecture and Architecture,Zhejiang A&F University)
出处
《风景园林》
2021年第2期69-75,共7页
Landscape Architecture
关键词
风景园林
杭州
综合公园
可达性
空间句法
LBS大数据
百度热力图
landscape architecture
Hangzhou
comprehensive park
accessibility
space syntax
LBS big data
Baidu heat map
