V.I. Turusov, V.M. Garmashov, M.I. Salnikov, N.A. Nuhnaya, S.A. Gavrilova
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Summary. In work methodical approaches to system of an estimation of resource potential of the grounds of agricultural purpose for soil - climatic conditions of the Voronezh area, with the purpose of the most full and rational use of natural – natural resources are considered at designing adaptive – landscape systems of agriculture. On the basis of statistical processing – correlation and regression analyses of the created databases (climatic conditions, soil, natural-landscape, biological – productivity of the basic agricultural crops) for 30 years period, the analysis and generalizations of materials of the scientific literature are established the most significant parameters determining resource potential of territory of land tenure for conditions of the Voronezh area (factor natural moisten – Ку, the contents humus in ground, truncated soils). We in the empirical way had been designed the correction factor which is taking into account a degree of a partition of territory of a reservoir ravine-girder by a network for conditions of the Voronezh area. It is expressed as Ерасчлен = 20R2, where R - factor ravines to territory of a reservoir ravine-girder by a network, km / km2. Taking into account, that ground different granulometric structure possess unequal water-holding ability that is especially important in conditions of unstable and insufficient humidifying. N.N. Ivanov’s formula has been advanced by selection and introduction in it of the correction factor which is taking into account various water-holding ability почв various granulometric of structure. It is expressed Кпочв = (1-S/100), where S – the area soils easy mechanical structure, %. Taking into account all above-stated, N.N. Ivanov’s advanced formula for the Voronezh area has the following kind: Ку = (W + ∑ P) × Кпочв / (Ео + Ерасчл), where Ку – factor of humidifying; W – productive stocks of a moisture in a meter layer by the beginning of the period, mm; ∑P – the sum of deposits for the considered period, mm; Кпочв.- the factor which is taking into account granulometric structure soil; Ео – evaporation for the settlement period - corresponding to the period of active temperatures of real year, mm; Ерасчл. – evaporation in view of a degree of a partition of territory, mm. Further by researches it is established, that for conditions of the Voronezh area change of productivity of cultivated cultures is the most exact depending on security soil – climatic resources is described by function of type у = а / х + в. Use of the advanced methods allows to define more precisely bioclimatic potential and a bioclimatic index of biological efficiency on agroecological to areas of the Voronezh area and to estimate efficiency of use of these parameters through calculation of a recoupment of one point of a bioclimatic index by biological efficiency of any culture.
Key words: аdaptive-landscape systems of agriculture, designing, system of an estimation, resource potential,agrlandscape.