Abstract
Abstract Saline lakes from the Soan-Sakesar valley are a breeding and feeding habitat for many shorebirds and waterfowl. In 1994, water samples were collected from lakes Uchhali, Khabbaki and Jahlar and analyzed for a variety of parameters such as Secchi disk transparency, chlorophyll a, total phosphorus, nitrate, alkalinity, pH, total dissolved substances, calcium, magnesium, sodium, potassium, chloride and sulfate. Chemical changes observed in 1994 were compared to those of 1986. The three lakes studied can be characterized as hypereutrophic. Their chemistry is controlled mainly by an evaporation-crystallization process and dissolved salts supplied by underlying sedimentary submerged springs. Uchhali Lake is saline, while Khabbaki and Jahlar lakes are brackish. The chemistry of the lakes is discussed in relation to their acidification from coal mines.
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