多中心空间结构能否在中国的城市聚集区实现污染和减少碳排放?
Yi Xiao1, Haonan Yang2, Qingshen Kong2
1Business School, Chengdu University of Technology, Chengdu 610059, China; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China.
Journal of environmental management
|August 2, 2025
概括
区域空间优化,特别是多中心城市结构,提高碳排放效率,减少污染. 然而,效应因经济密度而异,这表明可持续发展的定制方法.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 空间经济学 空间经济学
背景情况:
- 城市化会产生负面的环境外部性,影响地区的宜居性和可持续发展.
- 评估区域空间优化的环境绩效对于缓解战略至关重要.
研究的目的:
- 调查城市聚合区空间结构 (UASS) 对碳排放效率 (CEE) 和污染 (POL) 的影响.
- 探索UASS对CEE和POL的直接和溢出影响,包括潜在的门.
主要方法:
- 利用了2006-2023年夜间照明数据.
- 应用了等级大小规则和超效率SBM模型来评估UASS,CEE和POL.
- 分析了直接和溢出效应,包括经济密度 (ECDE) 门.
主要成果:
- 大多数城市聚集地表现出多中心空间模式,在东部沿海城市更为突出.
- 多中心结构通常增强了CEE,并在本地减少了POL,但在邻近地区可能会阻碍它们.
- 确定了ECDE值:多中心性有利于CEE和POL高于8941.773,主要是POL在643.024和8941.773之间,单中心性可能在643.024.773以下更好.
结论:
- 城市空间规划显著影响环境性能,在某些经济密度条件下,多中心性是有利的.
- 根据经济密度调整空间结构是优化碳排放效率和减少污染的关键.
- 研究结果为可持续城市发展和环境管理策略提供了宝贵的见解.
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