相关实验视频
Updated: Jun 15, 2025

12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.0K
生态系统服务价值的空间和时间变化及其影响机制在长江三角洲城市聚集地
Yugui Lu1,2, Jiacong Wang3, Xiaokun Jiang4
1School of Mathematics and Physics, Hechi University, Hechi, 546300, Guangxi, China.
Scientific reports
|August 22, 2024
概括
2006年至2020年期间,中国长江三角洲城市聚集区的生态系统服务价值下降了370.86亿元. 这项研究分析了时空模式和影响因素,以促进可持续的城市发展.
科学领域:
- 环境科学 环境科学
- 城市生态城市生态学
- 可持续发展 可持续发展 可持续发展
背景情况:
- 中国长江三角洲 (YRD) 的城市发展对生态系统服务价值 (ESV) 提出了挑战.
- 了解ESV的时空动态对于实现城市聚集区的可持续发展目标至关重要.
研究的目的:
- 测量和分析ESV在YRD城市聚集区的时空演变.
- 探索ESV在不同水平对影响因素的反应差异,使用面板定量回归模型.
主要方法:
- 使用规范差异植被指数 (NDVI) 和净初级生产率 (NPP) 作为ESV测量的动态调整因子.
- 采用面板定量回归模型来研究ESV影响因素的异质性.
主要成果:
- 从2006年到2020年,YRD城市聚集区的ESV减少了370.86亿元,高价值地区集中在南部.
- 陆地生态系统和主要生态系统子服务的价值结构保持稳定.
- 经历ESV减少的地区正在增加,主要是在东部沿海地区.
- 土地类型对ESV产生不同程度的干扰,而ESV对不同层次的影响因素的反应异质.
结论:
- 该研究强调了YRD城市聚集区内的ESV显著的时空变化.
- 调查结果强调需要调整人类利用和保护策略,以增强城市地区的生态系统产品.
- 分析ESV模式和机制对于促进可持续城市发展和实现生态平衡至关重要.
相关概念视频
Ecological Disturbance
17.0K
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.
17.0K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
41
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...
41
Responses to Drought and Flooding
10.6K
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.
10.6K
Applications of GIS: Disaster Management and Emergency Response
64
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
64
Adaptations that Reduce Water Loss
25.2K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.2K
Manipulation and Analysis
23
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
23

