基于中国黄河流域鸟类分布的生态空间模式的识别和优化
Chenglong Xu1, Qiang Yu1, Fei Wang1
1College of Forestry, Beijing Forestry University, Beijing, 100083, China.
Journal of environmental management
|October 12, 2023
概括
黄河流域 (YRB) 的生态网络是利用鸟类社区建立的,以保护生物多样性. 这项研究确定了475个来源和681个走廊,为物种的生存创造了一个重要的保护网络.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 地理信息系统 (GIS) 是指地理信息系统.
背景情况:
- 黄河流域 (YRB) 面临生物多样性丧失,原因是由于经济快速发展而导致的息地碎片化.
- 构建生态网络是YRB生物多样性保护的关键策略.
- 鸟类群落作为评估息地连接性的有效指标物种.
研究的目的:
- 在YRB建立一个保护鸟类多样性的网络.
- 为了确定鸟类的关键生态来源和走廊.
- 评估生态脚石在增强连通性的有效性.
主要方法:
- 将生物气候变量和土地利用数据与最大 (MaxEnt) 和InVEST模型结合起来,以确定生态来源.
- 使用数字海拔模型 (DEM),NDVI,NDWI,夜光和各种密度数据生成一个电阻表面.
- 使用最小累积电阻 (MCR) 模型模拟的生态走廊.
主要成果:
- 鸟类热点集中在YRB的上游和下游.
- 确定了475个生态源 (65,088平方公里) 和681个走廊 (11,495.05平方公里).
- 生态走廊在中部YRB中形成了密集的东西模式,连接了分散的息地.
结论:
- 构建的生态网络对于维持和保护YRB的生物多样性至关重要.
- 生态脚石显著优化了保护网络,而不是提高了一般的生态连接.
- 这些发现为YRB的生物多样性保护规划提供了科学基础.
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