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Comparison of Multicriteria Decision-Making Techniques for Groundwater Recharge Potential Zonation: Case Study of the Willochra Basin, South Australia
Water ( IF 3.4 ) Pub Date : 2021-02-18 , DOI: 10.3390/w13040525
Alaa Ahmed , Chathuri Ranasinghe-Arachchilage , Abdullah Alrajhi , Guna Hewa

In semi-arid regions, groundwater resources play a crucial role in all economic, environmental, and social processes. However, the occurrence, movement, and recharge of these hidden and valuable resources vary from place to place. Therefore, better management practices and mapping of groundwater recharge potential zones are needed for the sustainable groundwater resources. For an example, groundwater resources in Willochra Basin are vitally important for drinking, irrigation, and stock use. This study shows the significance of the application of three decision-making approaches, including multi-influencing factor, analytical hierarchy process, and frequency ratio techniques in the identification of groundwater potential zones. A total of seven criteria, including lithology, slope, soil texture, land-use, rainfall, drainage density, and lineament density, were extracted from conventional and remote sensing data sources. The parameters and their assigned weights were integrated using Geographic Information System (GIS) software to generate recharge potential maps. The resultant maps were evaluated using the area under the curve method. The results showed that the southern regions of the Willochra Basin are more promising for groundwater recharge potential. The map produced using the frequency ratio model was the most efficient (84%), followed by the multi-influencing factor model (70%) and then the analytical hierarchy process technique (62%). The area under the curve method agreed when evaluated using published weights and rating values.

中文翻译:

地下水补给潜力分区的多准则决策技术比较:以南澳大利亚维罗克拉盆地为例

在半干旱地区,地下水资源在所有经济,环境和社会进程中都发挥着至关重要的作用。但是,这些隐藏的宝贵资源的发生,移动和补给因地而异。因此,可持续的地下水资源需要更好的管理方法和地下水补给潜力区的测绘。例如,维洛克拉盆地的地下水资源对于饮用水,灌溉和畜牧业至关重要。这项研究表明了三种决策方法的应用意义,包括多影响因素,层次分析法和频率比技术在识别地下水潜在区中的重要性。共有七个标准,包括岩性,坡度,土壤质地,土地利用,降雨,排水密度,从传统的和遥感的数据源中提取线和线密度。使用地理信息系统(GIS)软件对参数及其分配的权重进行集成,以生成补给潜力图。使用曲线法下的面积评估生成的图。结果表明,Willochra盆地南部地区的地下水补给潜力更有希望。使用频率比率模型生成的地图效率最高(84%),其次是多影响因素模型(70%),然后是层次分析法(62%)。使用公布的权重和额定值评估时,曲线法下的面积一致。使用地理信息系统(GIS)软件对参数及其分配的权重进行集成,以生成补给潜力图。使用曲线法下的面积评估生成的图。结果表明,Willochra盆地南部地区的地下水补给潜力更有希望。使用频率比率模型生成的地图效率最高(84%),其次是多影响因素模型(70%),然后是层次分析法(62%)。使用公布的权重和额定值评估时,曲线法下的面积一致。使用地理信息系统(GIS)软件对参数及其分配的权重进行集成,以生成补给潜力图。使用曲线法下的面积评估生成的图。结果表明,Willochra盆地南部地区的地下水补给潜力更有希望。使用频率比率模型生成的地图效率最高(84%),其次是多影响因素模型(70%),然后是层次分析法(62%)。使用公布的权重和额定值评估时,曲线法下的面积一致。结果表明,Willochra盆地南部地区的地下水补给潜力更有希望。使用频率比率模型生成的地图效率最高(84%),其次是多影响因素模型(70%),然后是层次分析法(62%)。使用公布的权重和额定值评估时,曲线法下的面积一致。结果表明,Willochra盆地南部地区的地下水补给潜力更有希望。使用频率比率模型生成的地图效率最高(84%),其次是多影响因素模型(70%),然后是层次分析法(62%)。使用公布的权重和额定值评估时,曲线法下的面积一致。
更新日期:2021-02-18
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