Wildfire Impact on the Main Tree Species of the Near-Yenisei Siberia

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1134/S0001433818110026

Ключевые слова: fire frequency, fire radiative power, fire resistance, laser–based field instrumentation system, post–fire tree mortality, remote sensing data, Siberia, surface fires, wildfire

Аннотация: Abstract—: Wildfires are the major cause of forest death in Siberia, as well as one of the main ecological factors forming biodiversity. Here, we present the impact of surface wildfires on Northern Eurasian boreal ecosystems with the example of the main tree species in the Near–Yenisei Siberia. The wildfire impact in the study area is determined by the mean annual burning rate of 0.20 ± 0.05%. In the extremely dry summer of 2012, this value increased to 19%. The integral fire radiative power through the season reached 4.1 × 10 5 MW/km 2 , whereas the mean annual value did not exceed 0.64 × 10 5 MW/km 2 . Our observations demonstrate the highly variable effect of surface fires on conifer species in Siberia. Only trees with DBH > 5 cm survived a year after moderate severity surface fires. After high severity (usually steady) surface fires only pine trees with DBH > 17.2 cm survived, while trees with DBH > 18.1 cm were the most resistant within further post–fire succession. © 2018, Pleiades Publishing, Ltd.

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Издание

Журнал: Izvestiya - Atmospheric and Ocean Physics

Выпуск журнала: Vol. 54, Is. 11

Номера страниц: 1525-1533

Издатель: Pleiades Publishing

Авторы

  • Bryukhanov A.V. (Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia)
  • Panov A.V. (Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia)
  • Ponomarev E.I. (Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, RussiaArticle)
  • Sidenko N.V. (Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia)

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