Urban expansion dynamics and modes in metropolitan Guangzhou, China
Urban expansion dynamics and modes in metropolitan Guangzhou, China
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中国广州大都市的城市扩张动力与模式
DOI：
10.1016/j.landusepol.2017.12.025
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发表时间：
2018-03-01
期刊：
影响因子：
7.1
通讯作者：
Wang, Jieyong
中科院分区：
文献类型：
--
作者：
Gong, Jianzhou;Hu, Zhiren;Wang, Jieyong
城市化改变了城市面貌，引发了生态环境问题。为了解决这些问题，有必要量化城市扩张的动态并更好地理解城市扩张的模式。本研究评估了中国广州市 1990 年至 2020 年的城市化进程，并利用 Landsat 专题制图器图像和基于土地利用转换及其影响 (CLUE) 建模框架的模拟景观图探索其城市增长模式。结果表明，广州经历了巨大的扩张，其特点是在过去 20 年内其城市化总面积增加了两倍，并且预计将继续向欠发达地区（农业和林地）扩张。研究结果还表明，有时土地利用结构调整对城市景观形成的影响大于空间限制政策。观察到三种城市扩张模式（填充、边缘扩张和跨越式）同时发生，并且它们的相对主导地位发生变化，这揭示了螺旋式城市进程。
Urbanization changes urban landscapes and results in ecological and environmental problems. To solve these problems, it is essential to quantify the dynamics of urban expansion and better understand the modes of urban sprawl. This study evaluated urbanization in metropolitan Guangzhou, China from 1990 to 2020 and explored its modes of urban growth using Landsat Thematic Mapper images and simulated landscape maps based on the Conversion of Land Use and its Effects (CLUE) modeling framework. The results indicate that Guangzhou has experienced great expansion, characterized by the tripling of its total urbanized area within the last 20 years, and it is projected to continue expanding into less developed areas (agricultural and forest land). The results also show that adjusting the land-use structure sometime has a greater effect on the formation of the urban landscape than spatial restriction policies. Three urban expansion modes (infilling, edge expanding, and leapfrogging) were observed to occur simultaneously along with a shift in their relative dominance, which reveals a spiraling urban process.