基于多源数据的南昌市空间格局演化及影响机制研究  

Study on the Evolution and Influencing Mechanism of Nanchang Spatial Pattern Based on Multi-Source Data

作　　者：杨燕玲 章雯 朱健 王茜茜 吴佳伟 周萌 Yang Yanling;Zhang Wen;Zhu Jian;Wang Qianqian;Wu Jiawei;Zhou Meng(Jiangxi Institute of Natural Resources Surveying and Monitoring,Nanchang 330000,Jiangxi,China;School of Resources and Civil Engineering,Gannan University of Science and Technology,Ganzhou 341000,Jiangxi,China;School of Geographical Sciences,South China Normal University,Guangzhou 510000,Guangdong,China)

机构地区：[1]江西省自然资源测绘与监测院,江西南昌330000 [2]赣南科技学院资源与土木工程学院,江西赣州341000 [3]华南师范大学地理科学学院,广东广州510000

出　　处：《绿色科技》2024年第23期150-157,共8页Journal of Green Science and Technology

基　　金：自然资源部离子型稀土资源与环境重点实验室2022年度开放基金课题(编号:2022IRERE406);赣州市社科规划课题(编号:2024-NDSH38-0942)。

摘　　要：选取了城市化进程迅速的南昌市作为研究对象,采用支持向量机(SVM)、遥感(RS)和地理信息系统(GIS)的理论和技术手段,对南昌市城市空间格局的演变进行了深入分析。研究过程中开展的工作主要包括以下几个方面:对Landsat8 OLI数据通过融合全色和多光谱图像数据,提高了影像的空间分辨率。结果表明:南昌市在2015-2019年的城市空间扩张呈现明显的放射状趋势,城市核心区逐渐向外围扩展。这种变化主要受到社会经济发展、交通基础设施建设和人口增长的驱动。其中第三产业的快速发展促进了土地利用的集约化和多样化,经济的转型升级提升了城市对服务业和商业设施的需求。交通网络的扩展改善了市区与外围的连接性,推动了边缘区域的开发。随着城市化进程的加快,南昌市的城乡结构、人口分布和土地利用格局都发生了深刻变化。The present study focuses on Nanchang,a city undergoing rapid urbanization,as the research subject.Utilizing theoretical and technical approaches from Support Vector Machine(SVM),Remote Sensing(RS),and Geographic Information Systems(GIS),an in-depth analysis of the evolution of urban spatial patterns in Nanchang has been conducted.The main tasks undertaken during this research include the following aspects.By integrating panchromatic and multispectral image data from Landsat 8 OLI,the spatial resolution of the imagery is enhanced.The results indicate that between 2015 and 2019,urban spatial expansion in Nanchang exhibited a distinct radial trend,with the core urban area gradually extending outward.This transformation is primarily driven by socio-economic development,infrastructure improvements in transportation,and population growth.Notably,the rapid advancement of the tertiary sector has facilitated both intensive and diversified land use;economic restructu-ring has increased demand for service industries and commercial facilities within the city. Furthermore, enhancementsto transportation networks have improved connectivity between urban centers and peripheral areas, therebypromoting development in marginal regions. As urbanization accelerates, profound changes have occurred in Nanchang'srural-urban structure, population distribution, and land use patterns.

关 键 词：支持向量机 Landsat 8 OLI 空间格局 岭回归 驱动力 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]