达卡城市绿化:使用GIS和MCDM技术评估屋顶农业的适用性
Naima Sultana1, Ayyoob Sharifi2, Md Nazmul Haque1
1Urban Environmental Science Lab (URBES), Graduate School of Humanities and Social Sciences, Hiroshima University, Hiroshima, Japan.
Journal of environmental management
|August 14, 2024
概括
达卡的屋顶农业显示了城市绿化和粮食生产的前景. 这项研究使用了GIS和MCDM来绘制合适地区的地图,确定了9%的地区非常适合这种可持续的做法.
科学领域:
- 城市规划和环境管理
- 地理信息系统 (GIS) 应用程序
- 可持续农业和城市性
背景情况:
- 达卡的快速城市化导致绿色空间减少,城市热量增加和污染.
- 在密集的城市环境中,屋顶农业为环境恢复和安全食品生产提供了可行的解决方案.
- 关于达卡屋顶农业的可行性存在有限的研究.
研究的目的:
- 评估屋顶对于达卡农业活动的适用性.
- 使用GIS和多标准决策 (MCDM) 技术开发一个空间适应性地图.
- 确定最优的位置,以促进屋顶农业,以增强城市的性和适应气候变化.
主要方法:
- 选择七个关键标准:建筑物年龄,高度,屋顶尺寸,公用事业,财产价值,阳光和水的可用性.
- 使用最佳最差方法 (BWM) 通过专家调查来确定所选标准的权重.
- 在GIS框架中整合标准层,以生成达卡的综合性适用性地图.
主要成果:
- 屋顶面积和房产价值分别被确定为最重要的和最不重要的标准.
- 适宜性分析将达卡的9% (6.27平方公里),68% (46.59平方公里) 和22% (15.15平方公里) 分别归类为非常适合,适合和适度适合屋顶农业.
- 一个可以忽略的区域被发现不适合,表明广泛的潜力.
结论:
- 屋顶农业是增强达卡绿地和粮食安全的可行和有前途的战略.
- 开发的适用性地图为决策者和城市规划者提供了关键数据,以促进和扩大屋顶农业计划.
- 实施屋顶农业可以为达卡的气候变化适应和整体城市弹性做出重大贡献.
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