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Small rivers play an important role in the development of the hydrographic network and are tributaries of basin-forming rivers. Usually, it is shallow, which largely exposes them to the high impact of anthropogenic load. Anthropogenic pressure on water resources, especially in the Moscow and Moscow region, reached a rather significant level in this period. A critical situation occurs during the low water period, when the rivers switch to groundwater feeding and their runoff becomes minimal. With the formation of r...

At present there is an intensive growth of rivers? water use, which results in deterioration of water quality and hydrological regime. Small rivers are regulators of water regime of landscapes, maintain equilibrium and redistribution of moisture, as well as determine the hydrological and hydrochemical specificity of medium and large rivers. Drying, silting and disappearing of small rivers are the result of anthropogenic activity and climate change. Monitoring researches of surface water quality of small rivers is ...