摘 要:文章选取 2002、2006、2012 及 2016 年遥感影像,分析了南宁市城市建设用地扩张的时空特征,并探讨影响城市建设用地扩张的驱动因素,研究发现,从 2002 年到 2016 年,城市建设用地面积由 155.03 km2 持续增加到 305.59 km2,呈现不断向外扩张的趋势,重心也有所转移。自然地理因素决定建设用地扩张的总体趋势,社会经济因素对建设用地的扩张产生直接影响,地区生产总值和社会固定资产投资总额促进建设用地的形成,人口的增加也增加了城市建设用地的需求。
关键词:城市建设用地;扩张特征;驱动因素;遥感;南宁
DOI:10.19850/j.cnki.2096-4706.2022.16.032
基金项目:2018 年国家自然基金(41861039)
中图分类号:TP391 文献标识码:A 文章编号:2096-4706(2022)16-0124-04
Research on Urban Construction Land Expansion Characteristics in Nanning and Major Driving Factor Based on Remote Sensing
AN Liuyan1, WEI Yanfei 1, TONG Xinhua 2
(1.School of Natural Resources and Surveying, Nanning Normal University, Nanning 530001, China; 2.School of Geography and Planning, Nanning Normal University, Nanning 530001, China)
Abstract: This paper selects remote sensing images in 2002, 2006, 2012 and 2016, analyzes the spatiotemporal characteristics of urban construction land expansion in Nanning, and discusses the driving factors affecting urban construction land expansion. The research found that from 2002 to 2016, the urban construction land area has continued to increase from 155.03 km2 to 305.59 km2, showing a trend of continuous outward expansion, and the center of gravity is also shifted. Natural and geographical factors determine the overall trend of construction land expansion. Social and economic factors have a direct impact on the expansion of construction land. Regional GDP and total investment in social fixed assets promote the formation of construction land. The increase in population also increases the demand on urban construction land.
Keywords: urban construction land; expansion characteristics; driving factor; remote sensing; Nanning
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作者简介:安柳燕(1998.12—),女,汉族,广西马山人,硕士,主要研究方向:土地利用优化配置;通讯作者:韦燕飞(1978.01—),女,壮族,广西田阳人,教授,博士,主要研究方向:土地利用优化配置。