基于模式分析方法的森林和草原的结构和生态系统服务之间的关系:蒙古高原的一个案例研究
Jikai Zhao1, Qiang Yu2, Buyanbaatar Avirmed3
1College of Forestry, Beijing Forestry University, Beijing 100083, China.
The Science of the total environment
|July 13, 2024
概括
由于全球变暖,蒙古高原的植被模式正在发生变化. 了解这些空间分布模式是加强干旱地区生态网络和生态系统服务的关键.
科学领域:
- 生态网络分析 生态网络分析
- 景观生态学 景观生态学
- 复杂网络理论 复杂网络理论
背景情况:
- 全球变暖导致蒙古高原的荒漠化和土地利用碎片化,影响植被分布和生态系统服务.
- 关于植被空间模式与生态系统服务之间的大规模关系的研究有限.
研究的目的:
- 使用景观生态学和复杂网络理论,为蒙古高原构建一个生态空间网络.
- 分析植被分布模式的时空趋势 (2000-2100年).
- 探索源补丁的拓性质与生态系统服务之间的联系.
主要方法:
- 为蒙古高原开发了一个生态空间网络模型.
- 利用模式分析研究植被分布趋势.
- 研究了网络拓和生态系统服务之间的相关性 (例如,碳使用效率,水使用效率).
主要成果:
- 确定了四种基本的植被空间分布模式,其中核心链环模式是最稳定的 (40.74%).
- 根据SSP5-RCP8.5情景,预计到2100年源补丁减少22.76%.
- 确认了源补丁拓指标和生态系统服务之间的显著相关性,在优化后的水利用效率 (WUE) 显著改善.
结论:
- 植被空间分布模式可以增强生态空间网络的稳定性,并在大规模上改善生态系统服务.
- 这些发现为研究干旱和半干旱地区的植被分布提供了参考.
- 优化植被模式对于减轻荒漠化影响和维持生态系统功能至关重要.
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