生态系统服务的纵向动态特征及其对生态脆弱地区自然和人为相互作用的反应
Shengxiang Shi1, Tingting Yan1, Weijun Zhao1
1School of Civil Engineering and Geomatics, Shandong University of Technology, Zibo, 255000, China.
Journal of environmental management
|September 19, 2025
概括
中国西南地区的土地使用变化
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 地理 地理 地理 地理.
背景情况:
- 生态脆弱地区需要了解生态系统的功能,以实现可持续发展.
- 中国西南部的紫色土壤地区是典型的水侵蚀地区.
- 土地使用/土地覆盖 (LULC) 变化对生态系统服务产生重大影响.
研究的目的:
- 量化生态系统服务供应 (ESV) 的演变,以应对中国西南紫色土壤地区LULC变化 (1985-2020).
- 分析影响ESV变化的驱动因素.
- 为生态系统可持续性提供科学规划证据.
主要方法:
- 土地使用过渡矩阵分析.
- 强度分析. 强度分析.
- 热冷点分析. 热冷点分析.
- 地质探测器分析.
主要成果:
- 1995年至2000年间,土地使用转让的强度大幅下降,从农田转移到林地,从农田转移到建筑用地.
- 从1985年到2020年,生态系统服务价值 (ESV) 增加了约21122亿元人民币,这是由于森林扩张所推动的.
- 林地是最敏感的土地类型;LULC直接影响ESV,而地形湿度指数 (TWI) 和规范差异植被指数 (NDVI) 是关键的间接因素.
结论:
- 森林林区变化对ESV有重大影响,森林土地扩张是增加的主要驱动因素.
- TWI,NDVI和其他因素之间的相互作用放大了它们对ESV的影响.
- 这些发现有助于生态系统服务理论,并为可持续的区域生态系统管理提供证据.
相关概念视频
Ecological Disturbance
20.7K
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.
20.7K
Ecological Succession
21.3K
Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...
21.3K
What is an Ecosystem?
46.6K
Overview
46.6K
Habitat Fragmentation
21.1K
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.
21.1K
Keystone Species
24.1K
Measures of species biodiversity, such as richness (i.e., the number of species present) and evenness (i.e., their relative abundance), describe an ecological community’s structure. Many factors affect community structure, including abiotic factors (e.g., sunlight and nutrients), disturbances (e.g., fire or flood), species interactions (e.g., predation or competition), and chance events (e.g., foreign species invasion). Certain species—such as keystone species—also play a...
24.1K
Threats to Biodiversity
26.6K
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...
26.6K


