Influence of hydro-geochemical processes on groundwater quality through geostatistical techniques in Kadava River basin, Western India
Influence of hydro-geochemical processes on groundwater quality through geostatistical techniques in Kadava River basin, Western India
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通过地质统计学技术研究印度西部卡达瓦河流域水文地球化学过程对地下水质量的影响
DOI：
10.1007/s12517-018-4136-8
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发表时间：
2018
影响因子：
--
通讯作者：
Ajaykumar Krushna Kadam
中科院分区：
文献类型：
--
作者：
V. Wagh;D. Panaskar;J. Jacobs;S. Mukate;A. Muley;Ajaykumar Krushna Kadam
利用不同的地质统计技术，对2011年季风前后的40个地下水样本进行了水文地球化学和地下水质量分析。分析表明，两个季节Mg2+的浓度都超过Ca2+，表明硅酸盐风化是离子的来源。Ca + Mg平均值占阳离子总量的73.53%，是镁基矿物的主要供给源。升高的TDS和TH限制饮用潜力和其他有益用途表明永久硬水。除NO3外，阴离子的平均浓度在印度PL中被发现，归因于使用肥料。空间分布图显示，在两个季节中，冲积平原沉积物的EC、Mg、Na、Cl和SO4含量普遍高于剥蚀地貌和含有破碎玄武岩含水层的中/高层高原。证实了其主要风化过程为硅酸盐风化，其次为碳酸盐风化。TDS、Cl、SO4、Mg、Na和NO3的输入受降雨和人类活动的影响。地下水样品20、37和38由于位于地表水流动路径沿线，受到农业径流的严重影响。TDS和TH的高负荷由Mg、Na、Cl和SO4离子控制。Na在Ca上的浓度升高表示Ca和Na之间的离子交换。Mg、Na、Cl和SO4的高含量证实了地下水受到人为来源的影响。本研究为水资源管理者解决地下水污染问题提供了参考。
Hydrogeochemistry and groundwater quality of the Kadava River Basin have been performed by analyzing 40 groundwater samples for pre- and post-monsoon seasons of 2011 through different geostatistical techniques. Analyses showed that the concentrations of Mg2+ exceeded Ca2+ in both the seasons suggesting silicate weathering as a source of ions. Average Ca + Mg values contribute 73.53% of total cations and signify the major supply of mafic minerals. Elevated TDS and TH limit drinking potential and other beneficial uses indicate permanently hard water. The average concentrations of the anions were found within Indian PL except NO3, attributed to use of fertilizers. The spatial distribution maps show the EC, Mg, Na, Cl, and SO4 to be generally higher for both the seasons in flood plain deposits than denuded landforms and middle-level/high-level plateaus containing fractured basalt aquifers. It is confirmed that silicate weathering is the dominant process followed by carbonate weathering. Inputs of TDS, Cl, SO4, Mg, Na, and NO3 are influenced by rainfall and human activities. Groundwater sample numbers 20, 37, and 38 have been severely impacted from agricultural runoff as these samples are located along the surface water flow path. The high loading of TDS and TH is controlled by the Mg, Na, Cl, and SO4 ions. Elevated concentration of Na over Ca represents the ion exchange between Ca and Na. High contents of Mg, Na, Cl, and SO4 corroborate that the groundwater is influenced by anthropogenic sources. This study is an insight for water managers to address groundwater pollution problems.
影响因子：
2.5
作者：
T. I. Katsaounis
通讯作者：
T. I. Katsaounis