相关实验视频
Updated: Sep 12, 2025

05:37
An R-Based Landscape Validation of a Competing Risk Model
Published on: September 16, 2022
2.2K
一项基于新疆生态系统服务供需的生态风险识别研究
Xuemei Wei1,2, Abudukeyimu Abulizi3,4, Le Yuan1,2
1College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi, 830046, China.
Scientific reports
|August 6, 2025
概括
由于城市化和气候变化,干旱地区面临生态系统服务供需风险. 这项研究评估了XUAR的水产,土壤保留,碳捕获和粮食生产,确定了有针对性的生态管理的高风险地区.
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:
- 干旱和半干旱地区越来越容易受到生态系统服务供需失衡的影响,城市化和气候变化加剧了这种情况.
- 传统的生态风险评估往往忽视了人类的福祉,专注于景观模式,需要采取更全面的方法.
研究的目的:
- 量化新疆维吾尔自治区 (XUAR) 关键生态系统服务 (水产,土壤保留,碳封存,粮食生产) 的供需动态.
- 通过空间分析和先进的建模技术,识别和分类生态系统服务供需 (ESSD) 的生态风险.
- 根据ESSD风险分类,为干旱和半干旱地区提供有针对性的生态管理建议.
主要方法:
- 利用InVEST模型来量化生态系统服务.
- 使用地理信息系统 (GIS) 进行空间分析.
- 应用统计方法和自组织特征图 (SOFM) 用于ESSD风险分类.
主要成果:
- 在ESSD中观察到不同的空间模式,供应集中在水道沿线,需求集中在城市绿洲中心.
- 确定了在水产和土壤保留方面不断扩大的赤字区域,而碳封存和粮食生产赤字正在缩小.
- 分类四个ESSD风险包 (B1-B4),其中B2 (水产-土壤保留高风险) 是最普遍的.
结论:
- 该研究强调了XUAR内ESSD的显著空间异质性和时间趋势.
- 开发的ESSD风险分类为了解干旱环境中的生态脆弱性提供了一个框架.
- 调查结果支持需要量身定制的生态管理策略,以应对不同区域捆绑的特定风险.
相关概念视频
Threats to Biodiversity
22.9K
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...
22.9K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
101
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...
101
Ecological Disturbance
17.5K
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.
17.5K
What is Climate?
18.8K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.8K
Applications of GIS: Disaster Management and Emergency Response
153
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...
153
What is Conservation Biology?
18.7K
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.
18.7K

