L.G. Smirnova, A.G. Narozhnyaya, N.S. Kukharuk, S.A. Kukharuk, G.V. Smirnov
Belgorod State National Research University (NRU “BelSU”) ul. Pobedy, 85, Belgorod, 308015, Russian Federation
Summary. To detect the variability of soil and genetic characteristics (carbonate content and leaching) associated with the interdecadal fluctuations of climate, we developed an algorithm for analysis of materials of repeated soil examinations using multifunctional geoinformation system ArcGIS. Stages of analysis include scanning maps, their spatial reference, vectoring and coding of soil contours, the creation of morphometric maps on the basis of a digital model of the relief, overlay operations. The use of this algorithm allowed us to obtain a spatial database of soil contours of Novy Oskol, Korocha, Shebekino and Chernyanka districts, containing data on leached and typical chernozem in upland areas and slopes up to 3 degrees, based on data of two cycles of soil surveys. Between cycles of the soil surveys, it was noted the increase in the average annual air temperature (on 0.2 degrees), the annual amount of precipitation (by 83 mm) and values of hydrothermal coefficient during the growing season. These climatic changes caused the transformation of 36.4 % of the area of the investigated soils. The least transformation of typical chernozem to leached one was noted in the borders of Novy Oskol district – 503 ha. In Shebekino district the value of this parameter was 1619 ha, in Korocha district – 2125 ha, in Chernyanka district – 2146 ha. As a whole in the studied area, the increase in an amount of precipitation against the background of risen average temperatures in the second cycle of soil surveys resulted in the decrease of the boiling line of typical chernozem. In this regard, the areas occupied by leached chernozems widened.
Keywords: soil cover, Central Russian upland, interdecadal climate variability, method of GIS-analysis, transformation of natural habitats of soil contours.
Author Details: L.G. Smirnova, D. Sc. (Boil.), prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); A.G. Narozhnyaya, Cand. Sc. (Geogr.), assoc. prof.; N.S. Kukharuk, Cand. Sc. (Boil.), assoc. prof.; S.A. Kukharuk, master’s student; G.V. Smirnov, master’s student.
For citation: Smirnova L.G., Narozhnyaya A.G., Kukharuk N.S., Kukharuk S.A., Smirnov G.V. Detection of Dynamics of Soil Cover under Conditions of Interdecadal Climate Variability of the Southern Forest-Steppe of the Central Russian Upland with the Use of Geographic Information Systems. Dostizheniya nauki i tekhniki APK. 2016. V.30. No. 11. Pp. 12-16 (in Russ.).