Analysis of natural agro potential for territorial organization of agriculture in the Samara region

Abstract

The research is conducted in order to improve territorial organization of agriculture in context of the implementation of use strategy of adaptive-landscape land basing on the assessment and analysis of spatiotemporal structure of natural agro-potential of the territory. The results of dynamic statistical modeling of the standard crops yield in administrative regions of the Samara region are used. A mesoscale comprehensive assessment zoning of the territory is made: seven mesozones are allocated according to compliance of standard yields with crop productivity factors (correlation coefficients with many indicators 0.7-0.9), and assessed districts in them with the most uniform conditions (coefficient of variation within 10%). Assessed zoning is made in administrative contours of Samara region, and it forms geographic basis for solving agro-production issues of organizing adaptive-landscape land use system and crop rotations design. The basis of field crop rotations in innovative technologies in central and southern districts of Samara region are grain-fallow and grain-fallow-cultivated field crop rotations with the optimum specific weight of "black" fallow and winter crops in them. In forest-steppe area grain-fallow-grass-cultivated and grain-cultivated rotations with full and green-manured fallows, perennial grasses and leguminous crops are promising. For their implementation, an analysis of agricultural crops appropriate placement in assessed mesozones is carried out. Crops location according to soil and climate territory specification makes it possible to solve problems of preventing soil and agro-landscapes degradation most effectively, taking into account environmental effect of crops and agro-technologies.