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«IZVESTIYA IRKUTSKOGO GOSUDARSTVENNOGO UNIVERSITETA». SERIYA «NAUKI O ZEMLE»
«THE BULLETIN OF IRKUTSK STATE UNIVERSITY». SERIES «EARTH SCIENCES»
ISSN 2073-3402 (Print)

List of issues > Series «Earth Sciences». 2026. Vol 56

Analysis of the Features of the 15-Year Reforestation Period on Burnt-out Areas in the Pine Forests of the South-Western Baikal Region (Prolongation of the Synthesized Analysis of Field and Remote Data)

Author(s)

Zh. V. Atutova, Е. А. Rasputina

V. B. Sochava Institute of Geography SB RAS, Irkutsk, Russian Federation

Abstract
The results of long-term field observations of forest restoration burnt-out areas of the Badary urochishche are presented. Annual geobotanical results are considered in synthesis with NBR spectral index indicators. We considered the possibility of using geodata for remote detection of burnt-out areas and subsequent study of post-fire forest reforestation processes. The authors' previously obtained results from a synthesized analysis of in situ observations and remote sensing data served as the basis for this study. These were supplemented by geobotanical data from 2023–2025 and NBR indicators for the same period. This study analyzed data from 2009 (the pre-fire year) to 2025. Previous studies showed a sharp decrease in index values after a wildfire, indicating their informative value in quickly identifying areas affected by wildfires. In the post-fire period, the previously identified upward dynamics of NBR indicators in each seasonal group continued, which correlates with the increasing geobotanical characteristics during the forest restoration process. In forests unaffected by wildfires, NBR values remained stable throughout the observation period. In burnt-out areas, the index again showed a tendency to overestimate its values. Final NBR values for the mid- and late-growing seasons exceeded pre-fire values; in the early growing season, they closely approached them. At the same time, the in-situ situation was more consistent with the initial stage of forest restoration. This proves once again that a single analysis of NBR indicators in post-fire restoration studies does not guarantee an objective assessment of the landscape-ecological situation. Previously obtained conclusions about the feasibility of using peak vegetation NBR data to identify newly formed burnt-out areas and to assess the initial stages of the demutation process were confirmed. It is recommended to analyze the further course of the reforestation dynamics taking into account the indicators of the early growing season, devoid of the “inflating” influence of the living ground cover on the increase in the index indicators.
About the Authors

Atutova Zhanna Vladimirovna, Candidate of Sciences (Geography), Senior Research Scientist, Laboratory of Geomorphology V. B. Sochava Institute of Geography SB RAS 1, Ulan-Batorskaya st., Irkutsk, 664033, Russian Federation e-mail: atutova@mail.ru 

Rasputina Elena Aleksandrovna, Candidate of Sciences (Geography), Senior Research Scientist, Laboratory of Theoretical Geography V. B. Sochava Institute of Geography SB RAS 1, Ulan-Batorskaya st., Irkutsk, 664033, Russian Federation e-mail: elenaistoma@gmail.com

For citation
Atutova Zh.V., Rasputina Е.А. Analysis of the Features of the 15-Year Reforestation Period on Burnt-out Areas in the Pine Forests of the South-Western Baikal Region (Prolongation of the Synthesized Analysis of Field and Remote Data). The Bulletin of Irkutsk State University. Series Earth Sciences, 2026, vol. 56, pp. 33-52. https://doi.org/10.26516/2073-3402.2026.56.33 (in Russia)
Keywords
burnt-out area, reforestation, geobotanical observations, monitoring, remote data, NBR spectral index.
UDC
911.52+574.474(571.54)
DOI
https://doi.org/10.26516/2073-3402.2026.56.33
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