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构建有效的景观生态网络的框架,整合水文连接:在中国东江河流域的案例研究,中国
Xin Jiang1, Zhi-Yun Jiang2, Zhen-Ya Li3
1School of Geography, South China Normal University, Guangzhou, 510631, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
Journal of environmental management
|February 14, 2025
概括
极端气候事件对水资源产生影响. 开发基于水文连接的盆地景观生态网络可以增强生态系统的弹性和综合水资源管理. 这项研究绘制了东江河流域连通性的地图.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 生态生态学 生态生态学
背景情况:
- 极端气候事件导致储水变化,导致短缺和洪水.
- 基于水文连接的盆地景观生态网络可以提高弹性和水资源管理.
研究的目的:
- 评估2000年至2023年东江河流域的水文连接性.
- 构建一个景观生态网络,并确定生态点和障碍.
主要方法:
- 利用欧几里德距离来评估水文连接.
- 采用增强回归树 (BRT) 模型来确定生态抵抗因子权重.
- 应用了最小累积电阻 (MCR) 模型来构建生态网络.
主要成果:
- 平均水文连接范围在160-220米之间,分布半正常.
- 高度 (0.57),温度 (0.22) 和降水 (0.20) 是影响连接的关键因素.
- 确定了31个生态走廊 (1043.85公里),其中68.58%在森林地区,11.95%与地表水相对应.
结论:
- 确定了生态点 (21.78平方公里) 和障碍物 (183.37平方公里).
- 调查结果为盆地生态保护,水资源规划和洪水控制提供了洞察力.
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