摘要
引用改进动态阈值法和重心模型,分析江苏省城市动态扩张时空特征,得到江苏省城市建成区的空间分布情况及区域差异。结果表明,2000—2021年,提取的城市建成区面积与实际符合,演变规律与城市经济发展相贴合,形成以南京市、苏州市、徐州市为中心的“放射状”集聚形态,不同城市、不同阶段扩张速度差异明显,发展重心逐渐由南向北推进,由南京都市圈和苏锡常都市圈为主的发展模式逐渐向均衡发展模式转变。
Citing the improved dynamic threshold method and centroid model,the spatiotemporal characteristics of urban dynamic expansion in Jiangsu Province were analyzed,revealing the spatial distribution and regional differences of the built-up areas in urban areas of Jiangsu Province.The results indicate that during the period from 2000 to 2021,the extracted urban built-up area matched reality,and its evolution pattern aligned with urban economic development.A“radiating”agglomeration pattern centered around Nanjing,Suzhou,and Xuzhou was formed.Different cities exhibited varying expansion speeds at different stages.The development center gradually shifted from south to north,transitioning from a development pattern dominated by the Nanjing metropolitan area and the Suzhou-Wuxi-Changzhou metropolitan area towards a more balanced development model.
作者
刘欣
李凌峰
蔡琦
LIU Xin;LI Lingfeng;CAI Qi(School of Architecture and Engineering,Yangzhou University,Yangzhou 225127,Jiangsu,China;School of Civil Engineering,Southeast University,Nanjing 211189,China;Changzhou Urban and Rural Construction Engineering Management Center,Changzhou 213001,Jiangsu,China)
出处
《科技和产业》
2024年第17期239-246,共8页
Science Technology and Industry
基金
扬州大学人文社会科学基金(xjj2021-07)
扬州大学中国大运河研究院开放课题。
关键词
江苏省
城市建成区
夜间灯光影像
城市扩张
重心轨迹
Jiangsu Province
urban built-up area
nighttime light images
urban expansion
regional gravity centre
