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标题：Anthropogenic and Weathering Controls on the Water Chemistry of Wular Lake-INDIA: Using Hydro-geochemical & Statistical Approaches
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作者：Javid A Sheikh
期刊名称：International Journal of Environment and Bioenergy
电子版ISSN：2165-8951
出版年度：2018
卷号：13
期号：1
页码：1-7
语种：English
出版社：Modern Scientific Press
摘要：150 water samples were collected to asses weathering and anthropogenic Controls on water chemistry of Wular Lake-India. The results revealed lake waters are Alkine in nature. The order of major cations and anions was Ca2+>Mg2+>Na+>K+ and HCO3 ->SO4 2- >Cl, respectively further reveals three chemical water types are present: Mg-HCO3, CaHCO3 and Hybrid-type. The geochemical processes suggested that chemical composition lake water is mostly influenced by the lithology of the of basin (carbonates, silicates and sulphates) which had played a significant role in modifying hydro-geochemical facies in the form of Ca–HCO3, Mg–HCO3 and hybrid type. Correlation coefficient matrix for the major ions of water samples shows high positive and significant relation between Ca2+, Mg2+ and HCO3 - ; Ca2+ and Hardness suggesting carbonate lithology as source of ions mainly coming through dissolution of calcite. A positive relationship between Mg2+ and HCO3 - ; Mg 2+ and Hardness indicate some contribution coming through dissolution of dolomite as well. Moreover, a positive and significant correlation between Na+ and Clcannot be related solely to the dissolution of soil- salts, a significant contribution may be furnished from anthropogenic sources in the form of domestic wastes, evaporation, thereby increasing the salinity of Wular waters. The positive correlation of K+ , Na+ , SO4 2- and Cl- with NO3 - ; manifested the possible anthropogenic inputs from agricultural activities and domestic wastes.
关键词：Weathering;Anthropogenic;Wular Lake-India;Lithology;Correlation Coefficient Matrix;Agricultural;Domestic