Climate-induced mortality of Siberian pine and fir in the Lake Baikal Watershed, Siberia
URI (для ссылок/цитирований):
http://www.sciencedirect.com/science/article/pii/S0378112716308520https://elib.sfu-kras.ru/handle/2311/69762
Автор:
Viacheslav I. Kharuk
Sergei T. Im
Ilya A.Petrov
Alexei S.Golyukov
Kenneth J.Ranson
Mikhail N.Yagunov
Коллективный автор:
Институт космических и информационных технологий
Институт экологии и географии
Базовая кафедра геоинформационных систем
Кафедра географии
Дата:
2017-01Журнал:
Forest Ecology and ManagementКвартиль журнала в Scopus:
Q1Квартиль журнала в Web of Science:
Q1Библиографическое описание:
Viacheslav I. Kharuk. Climate-induced mortality of Siberian pine and fir in the Lake Baikal Watershed, Siberia [Текст] / Viacheslav I. Kharuk, Sergei T. Im, Ilya A.Petrov, Alexei S.Golyukov, Kenneth J.Ranson, Mikhail N.Yagunov // Forest Ecology and Management. — 2017. — Т. 384. — С. 191-199Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
Аннотация:
Siberian pine (Pinus sibirica) and fir (Abies sibirica) (so called ‘‘dark needle conifers”, DNC) showed decreased radial growth increment within the Lake Baikal watershed since the 1980s with increasing mortality recorded since the year 2000. Tree ring width was strongly correlated with vapor pressure deficit, aridity and root zone moisture. Water stress from droughts made trees more susceptible to insect attacks causing mortality in about 10% of DNC stands within the Lake Baikal watershed. Within Siberia DNC mortality increased in the southern part of the DNC range. Biogeographically, tree mortality was located within the DNC – forest-steppes transition. Tree mortality was significantly correlated with drought and soil moisture anomalies. Within the interior of the DNC range mortality occurred within relief features with high water stress risk (i.e., steep convex south facing slopes with shallow well drained soils). In general, DNC mortality in Siberia was induced by increased aridity and severe drought (inciting factors) in synergy with biotic attacks (contributing factor). In future climate scenarios with predicted
increase in aridity DNC could be eliminated from the southern part of its current range and will be replaced by drought-resistant conifers and broadleaf species (e.g., Larix sibirica, Pinus silvestris, and Betula pubescence).