相关实验视频
Updated: Jul 6, 2025

12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.0K
探索基于生态系统服务的流域生态风险捆绑:中国山西省的一个案例研究
Yupeng Wang1, Zihan Xu2, Shuying Yu1
1Technology Innovation Center for Integrated Ecosystem Restoration and Sustainable Utilization, MNR, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
Environmental research
|December 28, 2023
概括
西省的生态风险评估显示,森林化工作是有效的,但面临着挑战. 城市扩张增加了息地风险,需要专注于绿色空间和控制人类活动.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 风险评估 风险评估
背景情况:
- 人类世意味着人类对环境的影响越来越大.
- 将生态系统服务纳入生态风险评估 (ERA) 对于决策至关重要.
- 现有的ERA框架需要加强,以应对复杂的生态挑战.
研究的目的:
- 通过生态系统服务风险捆绑提出一个新的ERA框架.
- 评估山西省生态保护倡议的有效性.
- 识别新出现的生态风险和保护优先事项.
主要方法:
- 基于损失概率范式的ERA框架的开发.
- 对生态系统服务风险捆绑的分析.
- 在山西省对生态风险的时空空间评估.
主要成果:
- 西省的生态保护举措是有效的,增加了低风险的流域.
- 具有低风险捆绑的流域显著增加,从16.09%增加到34.49%.
- 城市扩张和生态系统保护之间的冲突越来越多,碳排放和息地退化风险增加 (15.88%至33.54%).
结论:
- 虽然森林化显示出好处,但其对供水的影响正变得矛盾.
- 城市扩张带来了重大威胁,导致两极分化的息地退化风险.
- 未来的保护应该优先考虑城市绿色空间的开发和对人类活动的控制.
相关概念视频
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
48
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
48
Threats to Biodiversity
22.3K
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...
22.3K
Habitat Fragmentation
17.5K
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.
17.5K
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Biodiversity and Human Values
13.1K
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.
13.1K

