植物多样性和社区结构对生态系统多功能性的影响,在东欧亚大草原的不同牧场潜力下
Baizhu Wang1, Yuanjun Zhu1, Xiaohui Yang1
1Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China.
The Science of the total environment
|May 11, 2024
概括
草原中的生态系统多功能性随着放牧潜力下降而下降. 植物多样性对高牧场的地面功能影响最大,而社区结构对较低牧场潜力的地面和地下功能至关重要.
科学领域:
- 生态生态学 生态生态学
- 牧场科学 牧场科学
- 生态系统科学 生态系统科学
背景情况:
- 草原生态系统面临着可持续管理方面的挑战,因为它们的牧场潜力各不相同.
- 生态系统多功能性 (EMF) 对草原健康至关重要,受植物多样性和社区结构的影响.
- 了解不同牧场水平之间的这些关系对于保护至关重要.
研究的目的:
- 研究植物多样性,社区结构和地面 (AEMF) 和地下 (BEMF) 生态系统多功能性之间的关联.
- 为了确定这些关联在不同的放牧潜力中如何变化.
- 为可持续的草原管理策略提供见解.
主要方法:
- 利用了通用的线性混合效应模型.
- 采用结构方程模型来分析复杂的关系.
- 评估了各种放牧潜力的植物多样性,社区结构,AEMF和BEMF.
主要成果:
- 生态系统的多功能性受到放牧潜力的显著影响,随着潜力下降而下降.
- 植物多样性和社区结构对AEMF和BEMF产生了不同的影响.
- 在高放牧潜力下,植物多样性对EMF的影响最大;在中等和低放牧潜力下,社区结构更有影响力.
结论:
- 植物多样性和社区结构是草原生态系统多功能性的关键驱动因素,它们的相对重要性因牧场强度而异.
- 调查结果突出了针对植物多样性或社区结构的定制管理策略的需要,以提高草原的可持续性.
- 这项研究加深了对草原生态系统动态的理解,并为有针对性的保护工作提供了信息.
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