THE INFLUENCE OF SLOPE EXPOSURE ON THE MANIFESTATION OF EROSION PROCESSES

Abstract

The research was carried out on the slopes of various expositions in the fields of A.I. Barayev Grain Farming SPC LLP.

The purpose of the research is to assess the level of penitration of atmospheric precipitation, the degree of erosion processes depending on the tillage systems and precursors on the slopes of various exposures.

The assessment of the water-erosion processes depending on the soil surface of the land use area, the exposure of slopes and different fields was carried out.

On sloping lands, water erosion of the soil is more pronounced in summer fallow fields. A higher moisture content in the soil in prewinter period, especially in the surface layers, leads to deeper freezing of the soil in winter. In spring, the soil thaws more slowly and the meltwater does not have time to soak into the soil.

Both for the summer fallow field and for other predecessors fields, better absorption of meltwater and less soil flushing are observed when sites are located on the plateau and on the northern slopes. On the southern slopes, the snow melts faster and the meltwater does not have time to soak into the not yet thawed soil.

To control water-erosion processes, it is necessary to differentiate the placement of crops according to the elements of the agricultural landscape, it is necessary to ensure maximum preservation of vegetation cover on the soil surface. It is required to exclude the placement of fallow fields on sloping lands.