Wildfire Occurrence in Forests of the Altai-Sayan Region under Current Climate Changes
E. I. PONOMAREV, V. I. KHARUK
V. N. Sukachev Institute of Forest, SB RAS, 660036, Krasnoyarsk, Akademgorodok, 50/28
Keywords: лесной пожар, метеопараметры, индекс сухости, Алтае-Саянский регион, wildfire, weather station data, dryness index, Altai-Sayan Region
Abstract
The data on meteorological parameters variation in the Altai-Sayan region in XX-XXI century were analyzed. Significant trends characterizing the dynamics of the average temperature, precipitation and dryness index SPEI were revealed. Growing wildfire frequency in the study area since the end of XX century was detected. Annual variation of wildfires had phase concurrency with the dynamics of mean temperature deviations and climate dryness and negatively correlated with averaged precipitation data. Rising of wildfire frequency was observed for the period of the XX - the first decade of the XXI century. The spatial re-distribution of wildfires in the Altai-Sayan region in the beginning of the XXI century was determined.
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