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相关概念视频

Applications of GIS: Disaster Management and Emergency Response01:29

Applications of GIS: Disaster Management and Emergency Response

36
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...
36
Levels of Use of a GIS01:29

Levels of Use of a GIS

41
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...
41
Thematic Layering in GIS01:30

Thematic Layering in GIS

30
In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...
30
Manipulation and Analysis01:21

Manipulation and Analysis

18
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...
18
Selected Data About Geographic Locations01:25

Selected Data About Geographic Locations

24
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...
24
Introduction to GIS01:28

Introduction to GIS

53
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...
53

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相关实验视频

Updated: May 29, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework
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开发基于云的WebGIS工具,将综合生态系统服务评估建模传达给保护利益相关者.

Wanhong Yang1, Yongbo Liu2, Hui Shao3

  • 1Department of Geography, Environment, and Geomatics, University of Guelph, ON, N1G 2W1, Canada.

Journal of environmental management
|February 1, 2025
PubMed
概括

一个新的WebGIS工具,生态系统服务评估工具 (ESAT),为保护利益相关者简化了生态系统服务 (ES) 建模. 它有助于确定具有成本效益的农业保护实践,以实现环境目标.

关键词:
保护优先考虑的保护优先考虑.决策 决策是做出决定的.牧场管理管理 牧场管理智能推建议是一个智能推.河岸增强 河岸增强 河岸增强让利益相关者参与其中.湿地恢复 湿地恢复

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相关实验视频

Last Updated: May 29, 2025

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Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM
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科学领域:

  • 农业科学 农业科学
  • 环境科学 环境科学
  • 地理信息系统 (GIS) 是指地理信息系统.

背景情况:

  • 现有的生态系统服务 (ES) 模型用于农业保护往往对利益相关者来说过于复杂.
  • 需要可访问的工具来评估保护实践的经济和环境影响.

研究的目的:

  • 开发一个用户友好的,基于云的WebGIS工具,以向保护利益相关者传达集成的ES建模.
  • 为实现特定的环境目标确定具有成本效益的保护实践.

主要方法:

  • 在空间优化框架内整合农场经济,流域水文和土壤碳模型.
  • 开发了一个WebGIS工具 (ESAT) 来可视化流域数据并分析保护实践的成本和收益.
  • 在整个开发和培训过程中,让保护利益相关者参与进来.

主要成果:

  • 通过确定成本效益高的保护实践,以改善沉积物,营养物质和土壤碳,ESAT工具有效地支持决策.
  • 利益相关者发现ESAT是农业环境计划决策的有用工具.
  • 该工具展示了可视化流域特征和评估保护实践场景的功能.

结论:

  • 开发的WebGIS工具 (ESAT) 成功地整合了复杂的建模以供利益相关者使用.
  • ESAT有助于确定最佳的保护策略,以平衡经济成本和环境效益.
  • 建议进一步简化WebGIS工具以提高用户友好性.