气候变化领域集成服务门户(CCPortal): Bark insulation: Ten Central Alpine tree species compared

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DOI	10.1016/j.foreco.2020.118361
	Bark insulation: Ten Central Alpine tree species compared
	Bär A.; Mayr S.
发表日期	2020
ISSN	0378-1127
卷号	474
英文摘要	Climate-driven increases in frequencies and intensities of wildfires will affect even relatively humid regions such as the Central Alps. During low- to moderate-intensity fires, the resistance of trees to fire is mainly determined by the insulation capability of their bark, which protects underlying tissues from lethal temperatures. However, the knowledge of fire resistance and bark heat insulation of Central Alpine species is scarce. In this study, the bark insulation capability of ten tree species was analyzed by bark surface heating experiments. Heat insulation was assessed by the time required to reach a lethal cambium temperature, linked to bark traits and analyzed with multivariate statistics. Our results revealed a strong overall relationship between bark thickness and cambial temperature responses, but also highlighted the role of bark density in insulating internal tissues. On a species level, additional bark traits, like moisture content, bark surface structure or bark thermal conductivity, contributed to the bark insulation capability. The bark insulation capability thus varied considerably between species. Identifying fire resistant species and knowledge of the traits determining species-specific bark insulation will help to better estimate impacts of fire disturbances and to face the challenge of an increased forest fire risk within the Alpine region. © 2020 The Author(s)
英文关键词	Bark insulation; Bark traits; Cambium protection; Fire resistance; Forest fires; Heat injuries; Insulation capability
语种	英语
scopus关键词	Deforestation; Fire resistance; Fires; Heat resistance; Histology; Multivariant analysis; Risk perception; Surface structure; Thermal conductivity; Tissue; Alpine regions; Fire disturbance; Fire resistant; Internal tissues; Lethal temperature; Multivariate statistics; Species specifics; Temperature response; Thermal insulation; alpine environment; forest fire; heating; humid environment; moisture content; surface structure; thermal conductivity; tree; wildfire; Deforestation; Fire Resistance; Fires; Histology; Surface Structure; Thermal Conductivity; Alps; Central Alps
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155095
作者单位	Department of Botany, University of Innsbruck, Sternwartestraße 15, Innsbruck, 6020, Austria
推荐引用方式 GB/T 7714	Bär A.,Mayr S.. Bark insulation: Ten Central Alpine tree species compared[J],2020,474.
APA	Bär A.,&Mayr S..(2020).Bark insulation: Ten Central Alpine tree species compared.Forest Ecology and Management,474.
MLA	Bär A.,et al."Bark insulation: Ten Central Alpine tree species compared".Forest Ecology and Management 474(2020).