TYPIZATION OF ARABLE LAND IN AGROLANDSCAPES OF VOLGOGRAD REGION
Belyakov A.M. TYPIZATION OF ARABLE LAND IN AGROLANDSCAPES OF VOLGOGRAD REGION // Arid ecosystems. 2021. V. 27. № 1 (86). P. 119-126. | PDF
By the example of the Volgograd region the problem of the ecological state of the agrolandscapes of the zone of insufficient moisture and the modern approaches to their preservation and improvement is indicated. The potential agroresources of the region, the state and level of production of the agricultural sector at the moment are presented. Scientifically based the methodological approaches of doing economic activity on the principles of adaptive landscape agriculture are presented. Typization of arable land in agrolandscapes of the Volgograd region was carried out taking into account the bioclimatic potential of land use territories. Particular importance is attached to the distribution of arable land along the slopes of the area, since the role of the relief in varying the crop yields is very high and amounts to 40-70%, and depends on the erodedness of the soil, the crop may decrease by 10-80%. There is a definite correlation between grain yield and soil properties. In particular, the improvement of the nutrition regime of the soil and an increase in the cultivation of the soil contribute to reducing the negative impact of drought on the yield of grain crops. The method for differentiating arable land by intensity of use has developed in the FSC of Agroecology of the RAS, where the provision of the arable layer with total humus was taken as the main criterion for the level of soil fertility. Four levels were highlighted: cultivated, optimal, near-critical and critical. Ultimately, the development of adaptive-landscape approaches is confirmed by the results of practical farming.
Keywords: agrolandscape, adaptive farming, typization of arable land, agrotechnology, bioclimatic potential, soil fertility.