基于电路理论的生态安全模式的构建和优化:霍霍特市的一个案例研究
Wenjun Wu1, Shuai Zhao1, Jie Guo1,2
1College of Land Management, Nanjing Agricultural University, Nanjing, 210095, China.
概括
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科学领域:
- 生态安全模式 生态安全模式
- 景观生态学 景观生态学
- 空间规划 空间规划 空间规划
背景情况:
- 生态安全模式对于区域生态安全至关重要.
- 生态土地的有效空间分布至关重要.
- 生态土地供应和安全所需的科学基础.
研究的目的:
- 构建2009年和2019年霍霍特市的生态安全模式.
- 确定保护和恢复的关键生态区域.
- 为霍霍特的生态安全模式提出优化策略.
主要方法:
- 采用了"源识别-阻力表面创建-走廊识别-关键区域确定"的范式.
- 利用电路理论用于保护和恢复的需求分析.
- 分为核心生态保护/恢复,核心恢复,核心保护和一般生态保护区的区域.
主要成果:
- 2009年和2019年没有发现任何相互连接的生态网络.
- 生态源面积从266.97平方公里减少到261.21平方公里.
- 生态走廊从10个减少到6个,总保护/恢复面积从342.15到199.91平方公里.
- 10年来观察到质量下降,碎片化增加和景观连接性下降.
结论:
- 霍霍特的生态空间已经退化,碎片化,失去连接.
- 迫切需要对生态资源进行优化,恢复屏障区域,保护紧迫点.
- 改善息地连接对于加强区域生态安全至关重要.
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