ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2022, Vol. 19, No. 1, pp. 179-192

Changes in intrazonal differences in the natural vegetation cover of forest-steppe landscapes in the late 20th and early 21th century

E.A. Terekhin 1 
1 Belgorod State National Research University, Belgorod, Russia
Accepted: 09.03.2022
DOI: 10.21046/2070-7401-2022-19-1-179-192
The article analyzes the parameters of vegetation cover natural dynamics within the forest-steppe zone in the territory of the Central Chernozem Region. Landscapes experiencing minimal anthropogenic impact were studied, such as small-dry-valleys and abandoned agricultural lands. During the mid-1980s to the end of the 2010s, an increase of differences in forest cover of small-dry-valleys was established between the northern and southern parts of the forest-steppe. The rate of forest cover increase differs significantly between forest-steppe physical-geographical subzones. The ratio of dry-valleys forest cover between the northern and southern forest-steppe increased from 1.6 in the mid-1980s to 2.5 in the late 2010s. There were statistically significant differences in dry-valleys forest cover between the forest-steppe subzones in 2018, which did not exist in the mid-1980s. The modern forest cover of abandoned agricultural lands in the northern forest-steppe is 7 times higher than this indicator in the southern forest-steppe. Abandoned lands located in various forest-steppe subzones differ significantly in the parameters of NDVI long-term dynamics in 2000–2018. In the northern forest-steppe, a positive statistically significant dynamics of the vegetation index was established. In the typical forest-steppe, NDVI dynamics is present, but it is less pronounced. In the southern forest-steppe, no statistically significant dynamics of the vegetation index was revealed. The established trends serve as indicators of increasing intrazonal differences in the natural vegetation cover within the forest-steppe zone.
Keywords: forest-steppe zone, small-dry-valleys, abandoned lands, intrazonal differences, reforestation, spectral response, remote sensing
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