生态安全模式的构建与滑坡敏感性相结合:中国延安市的案例研究
Bolin Li1, Ling Han2, Liangzhi Li3
1School of Land Engineering, Chang'an University, North Yanta Road, Xi'an, 710064, Shaanxi, China.
Journal of environmental management
|July 19, 2024
概括
这项研究通过整合滑坡敏感性和景观结构来优化延安的生态安全模式. 它确定了关键的生态区域和走廊,以指导地理危险地区的可持续发展.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 地质科学 地质科学
背景情况:
- 生态安全模式对于平衡环境保护和社会经济发展至关重要.
- 易发生地质危险的地区需要采用综合方法来优化生态安全模式.
- 了解景观结构和滑坡敏感性对于区域生态规划至关重要.
研究的目的:
- 提出和测试一个区域生态安全模式优化框架.
- 为生态规划整合滑坡敏感性和景观结构.
- 提供科学指导,以保护像延安这样容易发生地质危险的地区的生态安全.
主要方法:
- 信息价值模型用于山体滑坡敏感度指数的生成.
- 生态走廊开采的最小累积阻力 (MCR) 方法.
- 生态节点识别和生态控制区域划分的电路理论.
主要成果:
- 确定了2,352.24平方公里的生态来源 (主要是森林) 的最佳斑块颗粒度为600米.
- 将延安分为四个山体滑坡敏感区,表明整体敏感度很高.
- 绘制了26个生态走廊,61个生态紧点和54个生态屏障点,避免高滑坡风险地区.
结论:
- 优化的生态安全模式有效协调生态保护和社会经济发展.
- 对于关键的生态控制区域 (农田,森林,草原) 提出了不同的恢复策略.
- 该框架为容易发生山体滑坡的地区的生态安全提供了有价值的科学指导.
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