周口市建成区公园绿地空间布局与供需匹配研究  

Study on the spatial layout and supply and demand matching of park green space in urban built-up area of Zhoukou City

作　　者：朱茜亚 田国行[1] 吕锐 樊凡 李华威 ZHU Xiya;TIAN Guohang;LÜRui;FAN Fan;LI Huawei(College of Landscape Architecture and Art,Hennan Agricultural University,Zhengzhou 450002,China;Zhengzhou Institute of Land Spatial Planning and Land Use,Zhengzhou 450006,China)

机构地区：[1]河南农业大学风景园林与艺术学院,河南郑州450002 [2]郑州市国土空间规划和土地利用研究所,河南郑州450006

出　　处：《河南农业大学学报》2023年第6期975-983,共9页Journal of Henan Agricultural University

基　　金：河南省重点研发与推广专项(232400410329);河南省高等学校学科创新引智基地项目(GXJD006)。

摘　　要：【目的】提高周口市建成区公园绿地布局的科学性、合理性。【方法】以周口市建成区为研究对象,采用分形理论、核密度估计法等方法,对城市公园绿地的空间布局特征进行具体分析,然后根据公园绿地的空间矢量数据和人口栅格数据获取了供需空间分布特征,再使用改进后的两步移动搜索法,评价公园绿地的可达性和供需匹配性,最后通过对公园可达性及供给和需求的聚类分析进一步剖析供需差异化的成因。【结果】1)周口市的公园绿地空间布局表现出整体集中、局部分散的特征,公园绿地主要集中在河流两侧,整体呈现为两条带状分布。其中新城区公园绿地数量明显多于老城区。2)周口市公园绿地密度从建成区中心向周围不断衰减。3)周口市建成区公园绿地供需匹配程度总体呈现出东北高西南低的空间分布特征,不同区域公园绿地供需匹配程度差异明显。4)周口市建成区的老城区大部分区域位于低供给高需求低可达性区域,新城区大部分位于中高供给中低需求中高可达性的区域。【结论】针对周口市不同分区公园绿地的特征,提出优化建议并给出构建方案,同时为城市公园绿地规划布局以及国家生态园林城市建设提供科学依据。【Objective】This study aims to improve the scientific and rational layout of park green space in the built-up area of Zhoukou City.【Method】This paper takes the built-up area of Zhoukou City as the research object,adopts fractal theory and kernel density estimation method to analyse the spatial layout characteristics of urban park green space specifically,then obtains the spatial distribution characteristics of supply and demand according to the spatial vector data of park green space and population raster data,then uses the improved two-step moving search method to evaluate the accessibility of park green space and the matching of supply and demand,finally,further analyzed the causes of supply and demand differentiation through the clustering analysis of park accessibility,supply and demand.【Result】1)The spatial layout of park green space in Zhoukou shows the characteristics of overall concentration and local dispersion,with park green space mainly concentrated on both sides of rivers,showing an overall distribution of two bands.There are significantly more park green spaces in the new urban areas than in the old urban areas.2)The density of parkland in Zhoukou decreases from the centre of the built-up areas to the surrounding areas.3)The degree of matching supply and demand of park green space in the built-up areas of Zhoukou City generally shows the spatial distribution characteristics of high in the northeast and low in the southwest,and the degree of matching supply and demand of park green space varies significantly in different areas.4)Most of the old urban areas in the built-up area of Zhoukou City are located in areas with low supply and high demand and low accessibility,while most of the new urban areas are located in areas with medium-high supply,medium-low demand and medium-high accessibility.【Conclusion】According to the characteristics of park green space in different districts of Zhoukou City,the optimization suggestions and construction schemes were put forward,which provided scientif

关 键 词：空间布局 供需匹配 公园绿地 分形理论 核密度 两步移动搜索法 

分 类 号：TU986.5[建筑科学—城市规划与设计]