使用谷歌地球引擎和机器学习进行城市土地使用变化的地理空间建模和预测
Rana Muhammad Amir Latif1, Adnan Arshad2,3, Jinliao He4
1The Center for Modern Chinese City Studies, School of Geographic Sciences, East China Normal University, Shanghai, China.
PloS one
|December 18, 2025
概括
巴基斯坦的城市扩张.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 遥感 遥感 遥感 遥感
背景情况:
- 城市扩张和土地使用土地覆盖面 (LULC) 变化对可持续城市规划和粮食安全构成重大挑战.
- 巴基斯坦主要城市正在经历快速的城市化,影响自然资源和农田.
研究的目的:
- 从1990年到2020年,分析巴基斯坦五个主要城市的多十年LULC变化.
- 评估城市化对植被,荒地和农业区的影响.
- 预测未来的城市扩张趋势及其对粮食安全的影响.
主要方法:
- 利用了伊斯兰堡,卡拉奇,拉合尔,佩沙瓦和奎达的多时间的Landsat图像 (1990-2020).
- 在谷歌地球引擎 (GEE) 中使用微笑随机森林 (SRF) 算法进行LULC分类.
- 在未来城市扩张预测中应用了MOLUSCE-ANN模型.
主要成果:
- 城市面积显著增加:卡拉奇 (12.4%至41.3%),拉合尔 (15.2%至39.8%),伊斯兰堡 (9.1%至28.6%).
- 城市增长主要以牺牲植被和荒地为代价,影响农业地区.
- 未来的预测表明继续扩张,到2030年,卡拉奇和拉合尔可能会超过45%的建筑面积.
结论:
- 巴基斯坦的城市化进程迅速,侵占了重要的土地资源,对粮食安全构成风险.
- 高度影响城市发展模式,高海拔城市的增长速度较慢.
- 该研究提供了一个强大的,多十年的分析,对于为可持续的城市政策和减少灾害风险提供信息至关重要.
相关概念视频
Levels of Use of a GIS
300
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...
300
Selected Data About Geographic Locations
240
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...
240
Applications of GIS: Disaster Management and Emergency Response
413
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...
413
Manipulation and Analysis
269
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...
269
GIS Software, Hardware, and Sources of GIS Data
674
A Geographic Information System (GIS) combines specialized software and hardware to effectively manage, analyze, and present spatial and related data. GIS software includes critical functionalities such as a user interface for easy navigation, database management tools for handling spatial and attribute data, and data retrieval features for efficient access. Analytical tools transform raw data into insights, while display functions produce maps and reports in various formats for effective...
674
Introduction to GIS
462
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...
462


