MODELING HYDROCHEMICAL RUNOFF FROM MOUNTAIN LANDSCAPES
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Abstract
Experimental studies of hydrochemical runoff formation in mountain rivers, for all their relevance, are extremely difficult. The quality of river water, actively used by the population living along the rivers, significantly affects human health and economic activity in general. Based on the example of 34 river basins of the Altai-Sayan mountain country, the universal mathematical model of seasonal and long-term dynamics of hydrochemical runoffs from landscapes to rivers was developed. When calculating landscape runoffs (, Fe, mineral and suspended matter) we use the following main environmental factors: monthly precipitation, mean monthly air temperature, the area and altitude of landscapes and arable lands, general slope of river basins, and calculated water runoff. The developed model has the Nash-Sutcliffe performance criterion NSE=0.7–0.8 that is evidence of its good and very good quality. It can be easily integrated into the system of ongoing monitoring of river water quality and ensure the targeted implementation of measures to maintain this quality at a high level.
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