Geochemistry of groundwater, Markandeya River Basin, Belgaum district, Karnataka State, India

查看全文 作　　者：Ravikumar [1]P.;Somashekar [1]R.K.

机构地区：[1]Department of Environmental Science, Bangalore University, Bangalore-560 056,India

出　　处：《Chinese Journal Of Geochemistry》索引2011年第30卷第1期,共24页

摘　　要：The Markandeya River Basin stretches geographically from 15o56′ to 16o08′ N latitude and 74o37′ to 74o58′ E longitude, positioned in the midst of Belgaum district, in the northern part of Karnataka. The groundwater quality of 54 pre-monsoon samples in the Markandeya River Basin was evaluated for its suitability for drinking and irrigation purposes by estimating pH, EC, TDS, hardness and alkalinity besides major cations (Na+, K+, Ca2+, Mg2+) and anions (HCO3–, Cl–, SO42–, PO43-, F-, NO3–), boron, SAR, % Na, RSC, RSBC, chlorinity index, SSP, non-carbonate hardness, Potential Salinity, Permeability Index, Kelley’s ratio, Magnesium hazard and Index of Base Exchange. Negative Index of Base Exchange indicates the chloro-alkaline disequilibrium in the study area and the majority of water samples fall in the rock dominance field based on Gibbs’ ratio. Permeability indices of classes I and II suggest suitability of groundwater for irrigation. Based on Cl, SO4, HCO3 concentrations, water samples can be classified as normal chloride (96.3%) and normal sulfate (94.4%) and normal bicarbonate (44.4%) water types. 关键词：水地球化学流域贝尔纳塔地下水水质碳酸盐硬度印度碳酸氢钠

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Geochemistry of groundwater, Markandeya River Basin, Belgaum district, Karnataka State, India

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