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- W2912292749 endingPage "1490" @default.
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- W2912292749 abstract "Abstract The rising population, contamination and mismanagement of groundwater worldwide require sustainable management techniques and strategies to prevent misuse of groundwater resources especially in the semi-arid regions of the world. The aim of the present study is to assess the distribution of contaminants in groundwater at a spatial level by using a geostatistical method, namely ordinary kriging. For this, a physico-chemical parameter data set at 14 sampling locations for a period over 25 years was assessed. Three semi-variogram models, namely exponential, Gaussian and spherical, fitted well for the data set and were cross-validated using predictive statistics. Based on nugget/sill ratio, which characterizes the overall spatial dependence of water quality parameters, it was observed that, apart from nitrate, all the other parameters showed moderate to weak spatial dependence (i.e. total hardness), indicating significant influence of urbanization, fertilization and industrialization. Spatial distribution maps of all the parameters were generated. Concentration of most of the parameters reported high values in the northern region, while silicon dioxide and potassium recorded high values in the southern and central regions of the study area respectively. The study highlighted the depleting groundwater resources in various regions of the study area, indicating that the groundwater quality is in a declining state." @default.
- W2912292749 created "2019-02-21" @default.
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- W2912292749 date "2019-01-22" @default.
- W2912292749 modified "2023-09-26" @default.
- W2912292749 title "Spatial distribution of physico-chemical parameters for groundwater quality evaluation in a part of Satluj River Basin, India" @default.
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- W2912292749 doi "https://doi.org/10.2166/ws.2019.015" @default.
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