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景观连接性评估和保护策略的多尺度差异:中国重庆的一个案例研究
Xianlong Rao1, Jue Li2, Jiayan Li3
1School of Urban Construction, Zhejiang Shuren University, Shaoxing, 312028, China.
Scientific reports
|February 10, 2025
概括
保护景观连接对于城市增长中的生物多样性至关重要. 这项研究揭示了连接的规模依赖差异,为中国重庆的城市和大都市地区提供了有针对性的战略.
科学领域:
- 生态保护 生态保护
- 城市规划是城市规划.
- 景观生态学 景观生态学
背景情况:
- 城市迅速扩张导致息地碎片化,威胁着生物多样性.
- 景观连接是缓解碎片化和增强生态性的关键策略.
- 了解依赖规模的连接对于有效的保护规划至关重要.
研究的目的:
- 为中国重庆的景观连接建立一个多层次评估框架.
- 分析各种规模 (城市核心,大都市区,整个城市) 的结构和功能连接差异.
- 根据规模特定的连接模式提出量身定制的保护策略.
主要方法:
- 使用的景观连接指数和生态安全模式.
- 采用了主要城市区,主要大都市区和重庆市的多层次评估框架.
- 进行了比较分析,以确定连接的规模依赖变化.
主要成果:
- 结构连接:城市核心地区的重要性随着规模的扩大而下降;大都会地区经历了各种退化或升级.
- 功能连接:中小规模的保护依赖于特定的地区 (北,北,南安,班南);中大规模的保护强调其他地区 (南川,富林).
- 确定了关键走廊和源区,这些走廊和源区在不同规模上是至关重要的,以保持景观连接.
结论:
- 景观连接性表现出显著的规模依赖的变化.
- 为了有效保护景观连接,多层次的战略规划是必不可少的.
- 该研究提供了全面的参考资料,以保护快速城市化地区的景观连接.
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