DOI: 10.1038/ngeo2352
论文题名: Influence of tree species on continental differences in boreal fires and climate feedbacks
作者: Rogers B.M. ; Soja A.J. ; Goulden M.L. ; Randerson J.T.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2015
卷: 8, 期: 3 起始页码: 228
结束页码: 234
语种: 英语
Scopus关键词: albedo
; boreal forest
; carbon sequestration
; climate change
; forest inventory
; global change
; wildfire
; Eurasia
; North America
英文摘要: Wildfires are common in boreal forests around the globe and strongly influence ecosystem processes. However, North American forests support more high-intensity crown fires than Eurasia, where lower-intensity surface fires are common. These two types of fire can result in different net effects on climate as a consequence of their contrasting impacts on terrestrial albedo and carbon stocks. Here we use remote-sensing imagery, climate reanalysis data and forest inventories to evaluate differences in boreal fire dynamics between North America and Eurasia and their key drivers. Eurasian fires were less intense, destroyed less live vegetation, killed fewer trees and generated a smaller negative shortwave forcing. As fire weather conditions were similar across continents, we suggest that different fire dynamics between the two continents resulted from their dominant tree species. In particular, species that have evolved to spread and be consumed by crown fires as part of their life cycle dominate North American boreal forests. In contrast, tree species that have evolved to resist and suppress crown fires dominate Eurasian boreal forests. We conclude that species-level traits must be considered in global evaluations of the effects of fire on emissions and climate. © 2015 Macmillan Publishers Limited. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106327
Appears in Collections: 气候减缓与适应 科学计划与规划
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作者单位: Department of Earth System Science, University of California, Irvine, CA, United States; Climate Science and Chemistry and Dynamics Branches, National Institute of Aerospace, NASA Langley Research Center, Hampton, VA, United States; Woods Hole Research Center, Falmouth, MA, United States
Recommended Citation:
Rogers B.M.,Soja A.J.,Goulden M.L.,et al. Influence of tree species on continental differences in boreal fires and climate feedbacks[J]. Nature Geoscience,2015-01-01,8(3)