Тип публикации: статья из журнала
Год издания: 2017
Идентификатор DOI: 10.1134/S1067413617060042
Ключевые слова: area burned, central Siberia, climate change, fire return intervals, larch forests, wildfire
Аннотация: Wildfire frequency, relative area burned, and fire return intervals (FRI) have been studied in larchdominated forests along the transect from the southern (45° N) to the northern (73° N) distribution limits of larch stands based on analysis of satellite imagery (NOAA/AVHRR, Terra/MODIS; 1996–2015) and collection of tree cross cuts Показать полностьюwith fire scars. A significant increasing trend in fire extent (R2 = 0.50, p 0.05) has been revealed. Histograms of fire extent and frequency are bimodal in the southern and middle taiga (with peaks in spring–summer and late summer–autumn periods) but become unimodal toward the north (55° N). The length of FRI increases from 80 years at 62° N to ~200 years at the Arctic Circle and reaches ~300 years near the northern limit of larch stands, showing a significant inverse correlation with the length of fire season (r =–0.69). In turn, the length of fire season, area burned and FRI are closely correlated with latitudinal variation in solar irradiance (r = 0.97, 0.81, and –0.95, respectively).
Журнал: Russian Journal of Ecology
Выпуск журнала: Т. 48, № 6
Номера страниц: 507-512
ISSN журнала: 10674136
Место издания: Екатеринбург
Издатель: Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд)