从2000年到2020年,中国南方城市聚集区的综合生态安全的时空模式和城乡梯度
Xiaojun Wang1,2, Guangxu Liu3, Churan Zhang4
1Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China. gwangxj@163.com.
Environmental science and pollution research international
|September 5, 2023
概括
广东 - 香港 - 澳门大湾区 (GHMGBA) 的生态安全总体良好,但出现波动. 中部城市地区的安全性较差,而边缘地区的安全性更高,变化集中在过渡区.
科学领域:
- 环境科学 环境科学
- 城市生态城市生态学
- 可持续性研究 可持续性研究
背景情况:
- 生态安全 (ES) 对可持续城市发展至关重要.
- 城市聚集地对生态系统构成独特的挑战.
- 评估综合生态安全 (CES) 对区域规划至关重要.
研究的目的:
- 在2000年,2010年和2020年评估广东-香港-澳门大湾区 (GHMGBA) 的综合生态安全 (CES).
- 分析GHMGBA内部的时空模式和CES变化.
- 研究CES与城乡梯度之间的关系.
主要方法:
- 使用了四个子系统框架:自然基础,景观结构,生态系统稳定性和人类干扰.
- 评估了整个GHMGBA的CES在三个不同的时间点:2000年,2010年和2020年.
- 检查了沿城乡梯度的CES变化,并分析了时间变化.
主要成果:
- 总体而言,GHMGBA的CES总体上很好,大约43.5%的地区被归类为安全,24.5%的地区被归类为不安全 (城市中心地区).
- 在2000年至2020年期间,CES显示略有下降,随后相对稳定,大多数变化发生在过渡区.
- 与2000-2010相比,CES在2010-2020年间经历了更剧烈的波动,这表明空间时间不稳定性增加.
结论:
- GHMGBA的CES展出了复杂的时空动态,城市中心带来了安全挑战.
- 在城乡梯度上,CES模式显著变化,潜在的郊区区域显示出独特的波动.
- 结果为大型城市地区的协作城市规划和生态环境管理提供了关键的见解.
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