Assessment agroclimatic potential of the south of the Central Russian upland (the case of the Belgorod region)

Author(s):  Zh.A. Buryak, candidate of Sciences, Belgorod National Research University, Belgorod, Russia,

E.A. Terekhin, candidate of Sciences, Belgorod National Research University , Belgorod, Russia,

Issue:  Volume 43, № 3

Rubric:  Earth sciences

Annotation:  The article discusses the methodology of spatio-temporal modeling of the agroclimatic potential of the agrolandscapes in the south of the Central Russian Upland (the case of the Belgorod region). Agroclimatic indicators (the sum of active temperatures, hydrothermal coefficient, dry coefficient, moisture coefficient) were considered taking into account their variability depending on geomorphological conditions. The role of the relief in the redistribution of the radiation balance at the slope positions of agrolandscapes was estimated. Taking into account the trends of climatic changes in recent years, using GIS technologies, a model for the spatial distribution of agroclimatic potential on the territory of the Belgorod Region was developed, which was based on a climate bonitet score by I.I. Karmanov. The resulting model can be used both in modern climatic conditions and for retrospective estimates and forecasts. With constant calculated morphometric parameters (slope and exposure), climatic data (sum of active temperatures, radiation balance, annual precipitation) are variable and can be changed in the model depending on the purpose of the assessment. Thus, the developed model allows us to estimate the spatio-temporal variability of the agroclimatic potential of the territory.

Keywords:  agroclimatic potential, climate bonitet, radiation balance, hydrothermal coefficient, heat supply, moisture supply, productivity, relief, spatial analysis, GIS

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