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使用基于RS-GIS的MCDA技术确定城市固体废物处置区的可持续地图:西孟加拉邦达吉林的一个案例研究
Rubeena Vohra1, Prachi Mishra2
1Bharati Vidyapeeth's College of Engineering, Delhi, India. rubeena.vohra@gmail.com.
Environmental monitoring and assessment
|February 28, 2026
概括
这项研究开发了一种结合遥感和GIS的地理空间方法,以确定达吉林的可持续城市固体废物处理场所. 该模型成功地确定了合适的区域,平衡了环境,基础设施和经济因素,尽管地形具有挑战性.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 地理信息科学 地理信息科学
背景情况:
- 在像达吉林这样的生态脆弱,人口密集和城市化山区管理城市固体废物 (MSW) 带来了重大挑战.
- 快速的人口扩张和城市化加剧了废物管理问题,增加了生态和地形风险.
研究的目的:
- 开发和应用综合遥感 (RS),地理信息系统 (GIS) 和多标准决策分析 (MCDA) 的综合地理空间方法,以确定可持续的城市固体废物处理场所.
- 创建一个空间决策支持系统 (SDSS) 用于评估和绘制地表适合在达吉林市及其周边地区的废物处理.
主要方法:
- 采用了多标准的RS-GIS框架,标准化了诸如斜率,海拔,土地使用/土地覆盖,以及与道路,水体和定居点的距离等标准.
- 分析层次过程 (AHP) 用于对标准赋予权重,优先考虑土地价值,距离定居点和距离道路等因素.
- 使用加权线性组合 (WLC) 技术和高斯衰变函数来计算复合材料适用性指数和模型近距离效应.
主要成果:
- 该研究生成了一个复合性适用性地图,将土地分为高,中和低适用性废物处理区.
- 在达吉林市的南部和西南部地区确定了高度适合的区域,其特点是坡度温和,人口密度低,与敏感地点的距离更大.
- 分析显示,由于该地区具有具有挑战性的地形和密集的城市结构,只有有限的地区符合环境和基础设施标准.
结论:
- 开发的地理空间模型有效地确定了城市固体废物处理的最佳地点,平衡环境保护,基础设施需求和经济可行性.
- 这些发现为城市规划和废物管理提供了强大的决策支持工具,用于复杂的,丘陵地形的废物管理.
- 尽管存在地形和城市限制,但该模型成功地确定了最小化生态破坏和相关风险的地点,如山体滑坡和浸污染等风险.
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