长沙市公共体育设施空间格局及其驱动力

Spatial Pattern and Driving Force of Public Sports Facilities in Changsha City

以长沙市公共体育设施为研究对象,采用核密度分析、标准差椭圆、平均最近邻方法,得出长沙市公共体育设施的空间分布格局:(1)公共体育设施布局总体上呈现“西北-东南”的方向性趋势,与“湘江综合服务带”和“东西发展轴”相吻合。(2)公共体育设施布局较为紧凑,其平均距离小于500m,总体呈现隔江“1+2”的集聚模式,集聚效应最高区域位于岳麓街道和橘子洲街道。之后利用地理探测器进一步探析长沙市公共体育设施空间布局背后的驱动机制,研究发现:(1)人文因素的影响力均大于自然因素,人口密度因素影响力最大(0.509),地形因素影响力最小(0.004)。(2)任意两两因素交互后对公共体育设施空间布局的影响力都有显著提高,其中地形因素与植被覆盖度因素、道路交通因素、人口密度因素、经济基础因素交互后因子影响力为非线性增强,因子影响力增强效果显著。

Taking the public sports facilities in Changsha City as the research object,using the Kernel Density Analysis,Standard Deviation Ellipse and Average Nearest Neighbor Method,the spatial distribution pattern of public sports facilities in Changsha City is obtained:(1) The layout of public sports facilities generally presents a "northwest to southeast" directional trend,which is consistent with the "Xiangjiang Comprehensive Service Belt" and "East-west Development Axis".(2) The layout of public sports facilities is relatively compact,the average distance is less than 500m,and the overall pattern is "1+2" across the river.The highest concentration effect area is located in Yuelu Street and Juzi Street.Then,the driving mechanism behind the spatial layout of public sports facilities in Changsha City was further explored by using the geographical detector.The results showed that:(1)the influence of human factors was greater than that of natural factors,with the population density factor having the largest influence(0.509) and the terrain factor having the least influence(0.004).(2) The influence of any pair of factors on the spatial layout of public sports facilities was significantly increased after interaction,among which the interaction of terrain factors with vegetation coverage factors,road traffic factors,population density factors and economic base factors showed nonlinear enhancement,and the enhancement effect of factor influence was significant.