ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16, No. 2, pp. 98-110

Analysis of steppe fires long-term dynamics in Volgograd Region

S.S. Shinkarenko 1, 2 , A.N. Berdengalieva 1 
1 Volgograd State University, Volgograd, Russia
2 Federal Scientific Center of Agroecology, Complex Meliorations and Agroforestry RAS, Volgograd, Russia
Accepted: 29.03.2019
DOI: 10.21046/2070-7401-2019-16-2-98-110
The work is based on the investigation of the fire regime of the zonal landscapes of Northern Caspian. For the natural steppe and semi-desert landscapes of Volgograd Region, the areas burnt during 1998–2018 are determined on the basis of interpretation of Landsat images with verification according to active burning centers. Up to 40 % of the natural landscapes were subjected to pyrogenic effects in the region over the studied period, the total burning area, excluding repeatability, was 55,592.7 km2, and their number was 3776. The largest area is found in the Trans-Volga region in the Pallasovsky municipal district. This is due to the low development of the territory, there are about 80 % of non-agricultural land, for this reason fires spread freely to large areas, for example, 4.7 thousand km2 in 2001 and from 2.5 to 3 thousand km2 in 1998, 2002 , 2005, 2010, 2014 and 2016, the average annual fire area in the region is 1780.5 km2. The zone of maximum repeatability of the steppe fires is situated here — from eight to thirteen times in two decades, this kind of «center» of the steppe fires has an area of 2.4 thousand km2 or 12.3 % of all the area burns. An analysis of the index of the nearest neighbors of the centers of the contours of the burns showed significant clustering in their spatial distribution. An objective determination of the duration of pyrogenic successions makes it possible to study the patterns of plant shifts after fires of different years based on both field and distance methods.
Keywords: natural vegetation, landscape fires, Landsat, MODIS, Volgograd Region, remote sensing
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