整合机器学习和地理空间方法来绘制多种危险的脆弱性地图:对环境健康和脆弱生态系统中的污染物风险的影响
Ayinshaer Kuannaxiaer1, Jiacheng Liu2, N Kasthuri3
1Al-Farabi Kazakh National University, 050040, Almaty, Kazakhstan.
Environmental geochemistry and health
|October 28, 2025
概括
尼尔吉里斯河等高海拔地区面临自然灾害和人类活动带来的风险. 这项研究利用机器学习绘制了多种危险区域的地图,以指导保护和减少污染.
科学领域:
- 环境科学 环境科学
- 地理空间分析是什么
- 机器学习应用 机器学习应用
背景情况:
- 高海拔的生态系统越来越受到自然灾害和人类活动的威胁,导致社会经济和环境风险.
- 泰米尔纳德邦的尼尔吉里斯地区因其的地形,脆弱的生态系统,气候变化和人为压力而被确定为一个关键区域.
研究的目的:
- 用综合的地理空间技术和机器学习绘制尼尔吉里斯地区的多危险风险区的地图.
- 评估这些风险对生态系统稳定性和污染物易感性的影响.
- 支持可持续的土地利用管理,生态系统保护和减少污染的战略.
主要方法:
- 基于地理信息系统 (GIS) 的多调节评估,包括斜率,海拔,土地使用/土地覆盖 (LULC),排水密度以及与道路和定居点的距离.
- 应用XGBoost机器学习算法,通过捕捉复杂的空间关系来准确地分类多危险风险区域.
主要成果:
- 创建了一个多危险风险区域地图,确定了五个不同的风险类别.
- 高风险区域集中在库努尔和科塔吉里附近,与山体滑坡发生和污染物流动相关.
- 较低风险的地区被观察到在AU周围的低地区.
结论:
- 地理空间分析和机器学习 (XGBoost) 的整合有效地识别了生态敏感的山区的多危险风险区域.
- 这种方法为灾难准备,降低风险和增强生态弹性提供了一个强大的框架.
- 这些发现支持知情地进行土地利用规划,保护工作,以及在脆弱的高海拔地区控制污染.
相关概念视频
Applications of GIS: Disaster Management and Emergency Response
452
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...
452
Manipulation and Analysis
283
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...
283
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
281
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...
281
Introduction to GIS
493
Geographic Information Systems (GIS) are tools for storing, analyzing, and displaying spatial data alongside related attributes. Unlike traditional information systems that address general queries, GIS incorporates spatial components, enabling users to answer "where" and "how far." For example, GIS can process housing data linked to geographic locations like zip codes, allowing insights into population density or housing distribution through thematic maps.GIS integrates technologies such as...
493
Levels of Use of a GIS
346
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
346
Selected Data About Geographic Locations
254
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
254


