基于高斯两步移动搜索法的城市公园绿地可达性研究——以石林县城为例  

Research on Accessibility of Urban Park Green Space Based on Gaussian Two-Step Mobile Search Method—Taking Shilin County as an Example

作　　者：张晓娜 张懋琳 张继兰[1] Zhang Xiaona;Zhang Maolin;Zhang Jilan(College of Landscape Architecture and Horticulture,Southwest Forestry University,Kunming,Yunnan 650224,China)

机构地区：[1]西南林业大学园林园艺学院,云南昆明650224

出　　处：《绿色科技》2023年第17期41-47,共7页Journal of Green Science and Technology

摘　　要：城市公园绿地是城市居民日常休闲游憩的主要场所,分析城市公园绿地的空间可达性,可以有效衡量城市公园绿地供给与居民需求的关系,提高城市公园绿地公共服务水平。高斯两步移动搜索法由于直观、运算简便,且考虑空间距离和公园绿地供给与居民需求关系,被广泛应用于可达性的研究中。以石林县中心城区公园绿地为研究对象,应用高斯两步移动搜索法,分别从综合、社区、专类、游园不同类型公园设置不同服务半径搜索阈值,分析了公园绿地空间可达性差异。结果表明:①石林县中心城区公园绿地空间分布不均衡,其分布特征呈现出由中心向外围递减以及中心城区南部可达性总体比北部高的现象;②专类公园绿地的服务盲区比其他类型公园绿地多,且多聚集在中心城区南部。研究结果可为未来城市绿地规划发展与优化提供建议和科学参考。Urban park green space is the main place for urban residents'daily leisure and recreation.Analyzing the spatial accessibility of urban park green space can effectively measure the relationship between urban park green space supply and residents'demand,and improve the public service level of urban park green space.The Gaussian two-step mobile search method is widely used in the study of accessibility because it is intuitive,easy to calculate,and considers the spatial distance and the relationship between the supply of park green space and the needs of residents.Taking the park green space in the central urban area of Shilin County as the research object,this paper applies the Gaussian two-step mobile search method,sets different service radius search thresholds for different types of parks,such as comprehensive,community,special,and recreational parks,and analyzes the differences in the accessibility of park green spaces.The results show that:①The spatial distribution of park green space in the central urban area of Shilin County is uneven,and its distribution characteristics show a phenomenon of decreasing from the center to the periphery and the accessibility of the southern part of the central urban area is generally higher than that in the northern part;②The service blind area of special park green space is more than other types of park green space,and most of them are gathered in the south of the central city.The research results can provide suggestions and scientific references for future urban green space planning development and optimization.

关 键 词：两步移动搜索法 公园绿地 可达性 石林县城 

分 类 号：TU986[建筑科学—城市规划与设计]