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使用地理空间技术进行地下水质量和潜力分析:加纳阿尚蒂地区的案例
J N Marfo1, J A Quaye-Ballard1, S O Kwakye2
1Geomatic Engineering Department, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana.
Heliyon
|March 28, 2024
概括
评估加纳的地下水质量
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 地理信息系统 (GIS) 和远程传感 (RS)
背景情况:
- 加纳阿尚蒂地区面临水资源短缺,原因是表面水量下降,以及矿业和农业造成的污染.
- 有效的水资源管理需要可靠的方法来评估地下水的质量和潜力.
研究的目的:
- 用GIS和RS技术评估阿桑蒂地区的地下水质量和潜力.
- 开发地下水质量的空间评估,并确定合适的钻孔位置.
主要方法:
- 水质指数 (WQI) 是使用pH,TDS,化物,TH,酸盐,温度,度,铁和EC等参数来计算的.
- 地质信息系统和分析层次过程 (AHP) 集成用于地下水潜力绘图.
- 为空间分析开发数字主题层和地图.
主要成果:
- 超过92%的研究区域表现出极佳或良好的地下水质量.
- 该地区7.55%的水质不佳,凸显了对污染的担忧.
- 基于GIS的AHP有效地绘制了WQI和地下水潜在区域 (GWPZ) 的空间分布.
结论:
- 综合的GIS-AHP方法提供了一种可靠的方法来评估地下水的质量和潜力.
- 这些发现支持阿尚蒂地区的水资源管理,地下水勘探和政策制定.
- 保护地下水源免受污染对于可持续的供水至关重要.
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