三十年的3D城市化在长江三角洲,中国
Chenglong Yin1, Ruishan Chen2, Xiangming Xiao3
1School of Geographic Sciences, East China Normal University, Shanghai 200241, China; School of Biological Sciences, Center for Earth Observation and Modeling, University of Oklahoma, Norman, OK 73019, USA.
The Science of the total environment
|July 26, 2024
概括
长江三角洲 (YRD) 的城市化呈现出显著的3D增长,水平扩张占据了建筑垂直高度增加的优势. 这项研究揭示了城市土地利用动态的关键见解,以实现可持续发展.
科学领域:
- 城市和区域规划 城市和区域规划
- 地理信息科学 地理信息科学
- 遥感 遥感 遥感 遥感
背景情况:
- 可持续的城市规划需要了解城市扩张的动态,包括面积和高度.
- 以前的研究主要集中在横向的城市增长上,忽视了垂直的维度.
- 长江三角洲 (YRD) 是一个高度城市化的地区,需要对其发展进行详细分析.
研究的目的:
- 从1990年到2020年,绘制和分析YRD城市建筑区 (UBA) 的时空演变.
- 用3D视角研究城市扩张的水平 (面积) 和垂直 (高度) 维度.
- 确定城市扩张的主要类型及其在YRD内的空间分布.
主要方法:
- 对水平和垂直城市扩张数据的结合分析.
- 城市建筑区 (UBA) 的空间分布映射.
- 1990年至2020年城市扩张的时空空间分析.
主要成果:
- 在YRD的城市建筑面积显著扩大,从4,855.30平方公里扩大到44,447.15平方公里.
- 尽管摩天大楼的数量增加,但建筑物的平均高度略有下降,为1.26米.
- 73.17%的城市显示了3D综合扩张强度的增加,区域差异显著.
结论:
- 在过去的三十年里,横向城市扩张一直是YRD的主要驱动力.
- 了解3D城市扩张对于有效地利用土地资源和可持续城市发展至关重要.
- 在YRD的各省和城市之间存在城市扩张的显著差异.
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