了解农林系统的生物多样性如何推动退化息地的生态系统服务
Yiling Yang1, Jie Xiao2, Yunting Huang1
1School of Karst Science, Guizhou Normal University, Guiyang, 550001, People's Republic of China; State Engineering Technology Institute for Karst Desertification Control, Guizhou Normal University, Guiyang, 550001, People's Republic of China.
Journal of environmental management
|May 6, 2025
概括
在退化息地中,功能多样性 (FD) 是农林 (AF) 系统中生态系统服务 (ES) 的关键,增强稳定性. 在非退化地区,分类学多样性 (TD) 更为重要.
科学领域:
- 生态生态学 生态生态学
- 农业林业是农业林业的一部分.
- 生物多样性-生态系统服务 (BES) 研究
背景情况:
- 农林 (AF) 系统对于退化息地的生态恢复至关重要.
- 分类学多样性 (TD) 和功能多样性 (FD) 在影响整个息地退化梯度的生态系统服务 (ES) 中的具体作用尚未得到充分理解.
- 了解这些关系对于有效的生态恢复和可持续管理至关重要.
研究的目的:
- 量化评估TD和FD在AF系统中对ES的相对贡献.
- 调查TD和FD如何影响卡斯特地区不同息地退化水平的ES供应.
- 为评估在退化环境中的BES关系提供一个框架.
主要方法:
- 研究地点包括中国南部的未退化 (KND),潜在轻度退化 (PKD) 和中度至重度退化 (MKD) 息地.
- 使用的统计分析包括差异分析 (ANOVA),主要组件分析 (PCA),冗余分析 (RDA) 和等级分区.
- 评估的主要生态系统服务是生物质,净初级生产率 (NPP),碳储量,微气候调节指数 (MRI),土壤质量指数 (SQI) 和生态再生感指数 (ERSI).
主要成果:
- 生物质,核能发电,碳库存,MRI,SQI和ERSI在退化息地 (MKD,PKD) 与KND相比通常更高,尽管只有ERSI显示出显著差异.
- 在非退化息地 (KND) 中,TD是变化的主要驱动因素,表明在有利条件下物种主导的重要性.
- 在退化息地 (PKD,MKD) 中,FD发挥了更重要的作用,特征组合和冗余效应增强了系统稳定性并减轻了物种丧失的影响.
结论:
- 功能多样性 (FD) 对于维持生态系统服务 (ES) 和退化农林 (AF) 系统的稳定性至关重要.
- 分类学多样性 (TD) 在非退化环境中更有影响力.
- 这项研究为优化AF系统设计提供了科学基础,以实现生态恢复和可持续管理,特别是在退化的景观中.
相关概念视频
Threats to Biodiversity
21.9K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
21.9K
Ecological Disturbance
16.8K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
16.8K
What is an Ecosystem?
38.9K
Overview
38.9K
Habitat Fragmentation
17.3K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
17.3K
What is Conservation Biology?
18.2K
Conservation biology is a scientific field that focuses on the preservation of biodiversity in order to protect ecosystems while meeting the needs of the human population. Humans require properly functioning ecosystems to maintain our supply of natural resources, including food, medicines, and building materials.
18.2K
Biodiversity and Human Values
13.0K
Human civilization relies on biodiversity in many ways. Sudden changes in species biodiversity result in environmental changes that can modify weather patterns and therefore human civilizations.
13.0K


