Chemical and Microbial Composition of Khakassia Saline Lakes with Regard to Their Ecological State

摘要

Khakassia is a unique region with semi-arid climate in the Russian Federation where there are a lot of saline lakes. These lakes are visited by a great number of people every year. As a result, saline lakes in Khakassia are exposed to anthropogenic influence. In this article distinctive features of the chemical and microbial composition of some saline lakes are considered. The distribution of such various bacteria physiological groups as enterobacteria, mesophillous saprophytes, psychrophilic saprophytes, oligotrophs and etc. is shown. A special attention is paid to the assessment of ecological state of some saline lakes. The ecological state of all lakes is found to be moderately polluted and polluted, but their self-purification potential is not still exhausted.