基于夜光遥感和兴趣点的城乡接合部监测分析  

Monitoring and analysis of urban-rural fringe based on nighttime light remote sensing and points of interest

作　　者：钟以松 ZHONG Yisong(Zhejiang South Zhejiang Comprehensive Engineering Survey and Mapping Institute Company Limited,Lishui,Zhejiang 323000,China)

机构地区：[1]浙江省浙南综合工程勘察测绘院有限公司,浙江丽水323000

出　　处：《北京测绘》2025年第4期503-509,共7页Beijing Surveying and Mapping

摘　　要：随着城市边界扩张速度的加快,城乡接合部作为“城乡二元”结构中的过渡地带,其边界范围划定和国土空间规划存在定义模糊、边界不够精细等问题。本文利用夜间卫星灯光强度和兴趣点(POI)密度构建用于界别城乡的耦合指数INP,并进行剖面线趋势分析,选取城市影响距离衰减极大值作为“城市-乡村”区域突变的断裂点,并对断裂点集合形成的范围进行精细矢量化,并与高分辨率卫星数据和城市规划数据等进行对比验证,形成一套融合夜光卫星和POI的城乡接合部范围的精准监测识别方法,并对广东汕头主城区城乡接合部进行监测分析,研究结果表明:(1)研究区城乡接合部共计43.4 km2,范围监测准确率达87.7%,划分混淆原因主要是城乡接合部内存在农田和城镇用地混合像元等情况;(2)研究区内城乡接合部在设施均衡性上比城市区域低10.5%,但是平均人口密度比城市区域高6.8%。本研究成果可为城市规划管理部门开展城市功能规划调整和城乡接合部综合治理提供决策参考。With the rapid expansion of urban boundaries,the urban-rural fringe,as a transitional zone within the "urbanrural dual" structure,faces issues such as vague definitions,imprecise boundaries,and challenges in land space planning.This paper utilized nighttime satellite light intensity and the density of point of interest(POI) to construct a coupling index,INP,for distinguishing urban and rural areas.A profile line trend analysis was conducted,and the point of maximum decay of the urban influence distance was selected as the boundary point for the urban-rural transition.The range formed by the set of boundary points was then precisely vectorized and compared with high-resolution satellite data and urban planning data for validation.This method formed an accurate monitoring and identification method for the urban-rural fringe,integrating nighttime satellite imagery and POI.The method was applied to monitor and analyze the urban-rural fringe of the main urban area in Shantou,Guangdong.The research results are as follows.(1) The total area of the urban-rural fringe in the study area is 43.4 km2,with a monitoring accuracy of 87.7%.The main reason for classification confusion is the mixed pixels of farmland and urban land in the urban-rural fringe area.(2) The urban-rural fringe in the study area has a 10.5% lower infrastructure balance compared to urban areas,but the average population density is 6.8% higher than in urban areas.The findings of this study can provide decision-making references for urban planning and management departments in adjusting urban functional planning and conducting comprehensive governance of the urban-rural fringe.

关 键 词：城乡接合部 夜光卫星 兴趣点(POI) 监测分析 

分 类 号：P208[天文地球—地图制图学与地理信息工程] TU984[天文地球—测绘科学与技术]