湖北农业科学 ›› 2024, Vol. 63 ›› Issue (2): 101-110.doi: 10.14088/j.cnki.issn0439-8114.2024.02.018

• 土地利用及转型 • 上一篇    下一篇

南京都市圈城市用地扩展特征及影响因素分析

熊圆圆, 李禕   

  1. 河海大学公共管理学院,南京 211100
  • 收稿日期:2023-03-09 出版日期:2024-02-25 发布日期:2024-03-14
  • 通讯作者: 李禕(1982-),女,副教授,博士,主要从事城市与区域治理研究,(电子信箱)yili@hhu.edu.cn。
  • 作者简介:熊圆圆(1999-),女,江西南昌人,在读硕士研究生,研究方向为土地经济及管理,(电话)15295783763(电子信箱)347842020@qq.com。
  • 基金资助:
    国家自然科学基金项目(41601157); 江苏省哲学社会科学界联合会项目(15SSL037)

Analysis on the characteristics and influencing factors of urban land use expansion in Nanjing metropolitan area

XIONG Yuan-yuan, LI Yi   

  1. School of Public Administration, Hohai University, Nanjing 211100, China
  • Received:2023-03-09 Online:2024-02-25 Published:2024-03-14

摘要: 以南京都市圈为研究对象,基于2000—2020年5期遥感影像提取的土地利用数据,从扩张强度及扩张强度差异指数、聚类分析、景观格局指数及多元回归模型对南京都市圈城市群城市用地扩张的时空特征及影响因素进行定量分析。结果表明,基于扩张强度指数分析,2000—2020年南京都市圈城市用地面积持续增加,扩张强度呈“上升-下降-上升”的趋势,2015—2020年城市用地扩张强度最高。基于城市用地扩张强度差异指数分析,南京都市圈高速扩张区域集中在都市圈边缘地区,主要分布在东北与西南方向,城市用地扩张布局向均衡化发展。基于聚类分析模型分析发现,南京都市圈城镇用地扩张2000—2010年呈随机分布,2010—2015年城镇用地扩张呈高值聚集,2015—2020年用地扩张呈随机分布。基于景观格局指数分析发现,南京都市圈城市用地扩张集聚度逐渐提高,斑块分布愈发集中化,斑块形状在不断整合扩张中趋向复杂化,城市用地斑块内交通连接度不断提高,南京都市圈城市用地扩张向协同化发展。基于多元回归模型分析,人口增长、城市经济发展和交通建设等因素为推动城市用地扩张的主要因素。

关键词: 城市用地, 用地扩张, 驱动因素, 南京都市圈

Abstract: Taking Nanjing metropolitan area as the research object, based on the land use data extracted from the 5 remote sensing images from 2000 to 2020, the temporal and spatial characteristics and influencing factors of urban land use expansion in the urban agglomeration of Nanjing metropolitan area were quantitatively analyzed from the expansion intensity, difference index of expansion intensity, cluster analysis, landscape pattern index and multiple regression model. The results showed that based on the analysis of the expansion intensity index, the urban land area of Nanjing metropolitan area continued to increase from 2000 to 2020, and the expansion intensity showed a trend of “rising-falling-rising”, and the expansion intensity of urban land was the highest from 2015 to 2020. Based on the analysis of the difference index of urban land expansion intensity, the high-speed expansion area of Nanjing metropolitan area was concentrated in the border areas of the metropolitan area, mainly distributed in the northeast and southwest directions, and the urban land expansion layout was developing towards a balanced development. Based on the analysis of the cluster analysis model, it was found that the urban land use expansion in Nanjing metropolitan area was randomly distributed from 2000 to 2010, the urban land use expansion was concentrated at high values from 2010 to 2015, and the land use expansion was randomly distributed from 2015 to 2020. Based on the analysis of the landscape pattern index, it was found that the degree of urban land expansion agglomeration in Nanjing metropolitan area gradually increased, the distribution of patches became more and more concentrated, the shape of patches tended to be complicated in the continuous integration and expansion, the traffic connection degree in urban land patches continued to increase, and the expansion of urban land in Nanjing metropolitan area developed towards synergy. Based on the analysis of the multiple regression model, population growth, urban economic development and transportation construction were the main factors promoting the expansion of urban land.

Key words: urban land use, land use expansion, driving force factor, Nanjing metropolitan area

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