摘要
基于GIS空间分析技术,结合多源数据,采用核密度分析、最近邻分析和相关性分析等方法,研究成都市20个行政区域1305座桥梁的空间集聚模式及其与自然地理、社会经济因素的关系。结果表明:成都市桥梁空间分布整体呈现“中心集聚、外围扩散”的格局;桥梁的选址高度依赖水系,71.5%的桥梁位于500m缓冲区内;地形地貌显著制约桥梁建设,76.4%的桥梁分布于海拔500m以下的平原地区;桥梁密度与人口密度、GDP及城镇化率呈显著正相关,与土地面积呈显著负相关。
Based on GIS spatial analysis technology and multi-source data,this study employs kernel density analysis,nearest neighbor analysis,and correlation analysis to investigate the spatial aggregation patterns of 1305 bridges across 20 administrative districts in Chengdu,as well as their relationships with natural geographic and socioeconomic factors.The results indicate that the spatial distribution of bridges in Chengdu generally exhibits a"central clustering with peripheral dispersion"pattern.Bridge locations are highly dependent on water systems,with 71.5%of bridges located within a 500-meter buffer zone.Topography significantly constrains bridge construction,as 76.4%of bridges are distributed in plain areas with elevations below 500 meters.Bridge density shows a significant positive correlation with population density,GDP,and urbanization rate,while exhibiting a significant negative correlation with land area.
作者
吴思宇
梁爱霞
李雨轩
WU Siyu;LIANG Aixia;LI Yuxuan(Southwest Jiaotong University Hope College,Chengdu 610400,China)
出处
《建筑经济》
2025年第S2期382-385,共4页
Construction Economy
基金
2025年国家级大学生创新创业训练计划项目(202514262024)。
关键词
桥梁空间分布
GIS
核密度分析
最近邻分析
成都市
bridge spatial distribution
GIS
kernel density analysis
nearest neighbor analysis
Chengdu
