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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 145 - 155 (11page)
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The present study includes detailed hydrochemicalassessment of groundwater resources of Saq aquifer. The Saq aquifercovers a large area (about 375,000 km²) and lies in the arid regionwith low annual rainfall and extremely high evaporation. In the studyarea, groundwater serves as the major source for agricultural activityand for domestic usages. A total of 295 groundwater samples collectedand were analyzed for physico-chemical parameters such ashydrogen ion concentration (pH), total dissolved solids (TDS) andelectrical conductivity (EC), sodium (Na+), potassium (K+), magnesium(Mg2+), and calcium (Ca2+) ,bicarbonate (HCO3) chloride(Cl−), sulfate (SO42−) and nitrate (NO3). The goal and challenge forthe statistical overview was to delineate chemical distributions ina complex, heterogeneous set of data spanning over a large geographicrange. After de-clustering to create a uniform spatial sample distributionwith 295 samples, histograms and quantile-quantile (Q-Q)plots were employed to delineate subpopulations that have coherentchemical affinities. The elements showing significantly higher positivecorrelation are: TDS with EC; Ca with EC, TDS; Mg and EC,TDS, Ca, K; Cl and EC, TDS, Mg, Na, Ca; SO4 and EC, TDS, Ca,Cl, Na, Mg. The distribution of major ions in the groundwater isNa+ > Ca++ > Mg++ > K+ and Cl− > SO4−2 > HCO3− > NO3−. Ionicabundance plot of alkalis with Ca and Mg is suggestive of mix typetrends of concentrations as evident by moderate correlation (r =0.57). About 60% of the total samples have alkalis abundance andrests have more Ca + Mg concentrations than alkalis. Taking bothresults of cluster tree and geochemical features of variables intoconsideration, the authors classify the elements into two major groups,the first includes TDS, Na, EC, Cl, Ca, SO4, and Mg, where therelationship within the group are strong. The second group includesK, HCO3, pH, and NO3. This group has close relationship with group1 demonstrate that, the increase in the concentration to some elementscould be the same. Some of the analyzed parameters approach anormal distribution, as both their skewnesses and kurtoses reachclose to “0”. The study revealed that, all of the element pairs exhibitpositive relations.
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참고문헌 (18)
참고문헌 신청
Al-Amry, A.S / 2008 / Hydrogeochemistry and Groundwater Quality Assessment in an Arid Region: A Case Study from Al Salameh Area, Shabwah, Yemen / The 3rd International Conference on Water Resources and Arid Environments, the 1st Arab Water Forum :1~19
Al-Bassam, A. M. / 1997 / Hydrochemical evaluation of the Umm-er-Radhuma aquifer system, Saudi Arabia, Hydrochemistry / Proceedings of the Rabat Symposium 244:13~26
American public Health association / 1995 / Standard methods for the examination of water and wastewater / APHA :45
Nas, B. / 2010 / Selection of MSW landfill site for Konya, Turkey using GIS and multi-criteria evaluation / Environmental Monitoring Assessment 160:491~500
BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES / 1985 / Water, agriculture and soil studies of Saq and overlying aquifers :279
Al-Bassam, A. M. / 1997 / Hydrochemical evaluation of the Umm-er-Radhuma aquifer system, Saudi Arabia, Hydrochemistry / Proceedings of the Rabat Symposium 244:13~26
American public Health association / 1995 / Standard methods for the examination of water and wastewater / APHA :45
Nas, B. / 2010 / Selection of MSW landfill site for Konya, Turkey using GIS and multi-criteria evaluation / Environmental Monitoring Assessment 160:491~500
BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES / 1985 / Water, agriculture and soil studies of Saq and overlying aquifers :279
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