在印尼半干旱地区使用基于GIS的MCA技术和卫星降雨数据确定雨水收集池 (embung) 的潜在地点
Yulius Patrisius Kau Suni1,2, Joko Sujono1, Istiarto1
1Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia.
PloS one
|June 7, 2023
概括
印度尼西亚的雨水收集 (RWH) 选址采用了地理空间数据和多标准分析. 该研究确定了利利巴流域的13个合适的池位置,对于半干旱地区的水资源保护至关重要.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 地理信息系统 (GIS) 是指地理信息系统.
背景情况:
- 雨水收集 (RWH) 是一种传统技术,在干旱和半干旱地区用于家庭使用,农业和土壤/水资源保护.
- 确定RWH池的最佳位置对于最大限度地提高其有效性至关重要.
- 半干旱地区经常面临水资源短缺,因此像RWH这样的高效水资源管理技术至关重要.
研究的目的:
- 用基于GIS的多标准分析 (MCA) 确定印尼蒂莫尔利利巴流域的雨水收集池的合适位置.
- 将生物物理和社会经济因素与卫星降雨数据相结合,以便有效地选择RWH地点.
- 通过实地观测验证确定地点的适用性.
主要方法:
- 采用基于地理信息系统 (GIS) 的多标准分析 (MCA) 方法.
- 利用来自全球降雨卫星绘图 (GSMaP) 的卫星降雨数据.
- 纳入了粮农组织和印尼小池指南的标准,以及流域生物物理和社会经济数据.
- 进行了简单的现场观察以进行验证.
主要成果:
- 卫星每日降水数据显示弱至中度的相关性,但月度数据显示强至极强的相关性.
- 分析表明,13%的溪流系统不适合池,24%非常适合 (适合性好),3%非常好.
- 约有61%的地点被发现部分适合建造池.
- 总共有13个适合建造池的地点被确定.
结论:
- 地理空间数据,GIS,MCA和实地调查的结合是数据有限的半干旱地区RWH选址的有效方法.
- 该研究成功地确定了利利巴流域RWH池建设的多个可行地点.
- 这种方法为可持续的水资源管理和在类似环境中的农业发展提供了有价值的框架.
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