Siberian silkmoth outbreaks surpassed geoclimatic barrier in Siberian Mountains

doi:10.1007/s11629-020-5989-3

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2020 > Vol17 No.8

	Siberian silkmoth outbreaks surpassed geoclimatic barrier in Siberian Mountains
	Kharuk, Viacheslav, I; Im, Sergei T.; Soldatov, Vladimir V.
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2020
卷号	17 期号:8 页码:1891-1900
关键词	Insect outbreaks Remote sensing monitoring Insect ranges expansion Siberian silkmoth Forest health Conifer mortality
ISSN号	1672-6316
DOI	10.1007/s11629-020-5989-3
文献子类	Article
英文摘要	Siberian silkmoth (SSM,Dendrolimus sibiricusTschetv.) is the most important defoliator of Siberian pine (Pinus sibiricaDu Tour) and fir (Abies sibiricaLedeb.) stands. Warming-induced SSM outbreaks are one of the major driving factors of successions within the taiga zone. It is suggested that climate change impacted the SSM range and life cycle. We analyzed the migration of alpine and northerly SSM outbreak boundaries in Siberia and the impact of the climate variables and topography on the outbreak dynamics. We used time-series scenes (multispectral data, and vegetation indexes EVI and NDII) in combination with field studies, climate variables, and GIS techniques. We found that SSM outbreaks in the area of alpine boundary shifted about 370 m uphill since the mid of 1950. The outbreak onset was promoted by increased dryness and active temperatures and decreased root zone moisture content in the spring-early summer period. The terrain topography strongly affected SSM outbreak onset and dynamics. Initially, the outbreak was located at the middle elevations on the gentle concave southeastern slopes, which are the favorable insect habitats between outbreaks. Then the outbreak expanded uphill and downhill, to steeper slopes, and both concave and convex terrains. Alongside with elevation range expansion, SSM surpassed its northern historical outbreak boundary: the potential outbreaks' boundary moved about 300 km northward. Climate warming contributes to SSM migration into former outbreak free conifer stands located in highlands and at northern latitudes.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000549723200003
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/50463]
专题	Journal of Mountain Science_Journal of Mountain Science-2020_Vol17 No.8
推荐引用方式 GB/T 7714	Kharuk, Viacheslav, I,Im, Sergei T.,Soldatov, Vladimir V.. Siberian silkmoth outbreaks surpassed geoclimatic barrier in Siberian Mountains[J]. JOURNAL OF MOUNTAIN SCIENCE,2020,17(8):1891-1900.
APA	Kharuk, Viacheslav, I,Im, Sergei T.,&Soldatov, Vladimir V..(2020).Siberian silkmoth outbreaks surpassed geoclimatic barrier in Siberian Mountains.JOURNAL OF MOUNTAIN SCIENCE,17(8),1891-1900.
MLA	Kharuk, Viacheslav, I,et al."Siberian silkmoth outbreaks surpassed geoclimatic barrier in Siberian Mountains".JOURNAL OF MOUNTAIN SCIENCE 17.8(2020):1891-1900.