Geografie 1981, 86, 99-106
https://doi.org/10.37040/geografie1981086020099
To the analysis of action of a set of anthropogenous impacts on runoff
The authors study the possibilities of predicting the changes in the hydric regime which are the result of human activity. They analyse hydrological data in some countries where quantitative changes have been studied, which resulted from the melioration of agricultural land, from the volume of consumed water in industry, etc. The authors came to the conclusion that human activity results in the changes of volume of streams in the course of the year, and in a considerable decrease of surface discharge where water is used for melioration purposes. It is, however, difficult to determine the whole system of influences, especially indirect influences. A reliable method of determination is still missing.