Surface runoff value on lands with different slopes and agricultural use

The purpose of research is to study the influence of natural conditions, such as precipitation, its intensity, duration and magnitude, the presence of vegetation, the slope of the surface of the site and its agricultural use, on the formation of surface runoff. The studies were carried out on six runoff sites located on a slope of various steepness, the size of which was 10×5 meters. The long side was located along the slope of the site. The sites were isolated from the surrounding area by earthen sides. To determine the volume of surface runoff, calibrated measuring tanks were used. Feed beet and perennial grasses were grown on stock sites, two of them were occupied by fallow. Observations of liquid atmospheric precipitation were carried out at the meteorological site of the educational and experimental complex Tushkovo-1 of the Belarusian State Agricultural Academy using a rain gauge and a pluviograph. The values of the total surface runoff and its causing total values of atmospheric precipitation by years of observation are determined. The relationship between daily values of liquid atmospheric precipitation and daily values of surface runoff is described. It should be noted that the largest number of observations of surface runoff was from site No. 6, the slope of which is 0.053 % and kept fallow, and the smallest from site No. 4, occupied by perennial grasses and a slope of 0.042 %. This confirms the mutual influence of the slope and the agricultural use of the field on the amount of runoff.