DOI: 10.1016/j.gloplacha.2012.10.005
论文题名: A large-scale coherent signal of canopy status in maximum latewood density of tree rings at arctic treeline in North America
作者: Beck P.S.A. ; Andreu-Hayles L. ; D'Arrigo R. ; Anchukaitis K.J. ; Tucker C.J. ; Pinzón J.E. ; Goetz S.J.
刊名: Global and Planetary Change
ISSN: 0921-8386
出版年: 2013
卷: 100 起始页码: 109
结束页码: 118
语种: 英语
英文关键词: Arctic tundra
; Boreal forest
; High latitudes
; Normalized difference vegetation index
; Remote sensing
; Tree ring
Scopus关键词: Arctic tundra
; Boreal forests
; High Latitudes
; Normalized difference vegetation index
; Tree rings
; Remote sensing
; Snow melting systems
; Forestry
; annual variation
; boreal forest
; canopy
; dendrochronology
; growing season
; latitude
; NDVI
; remote sensing
; signal
; treeline
; tundra
; Arctic Regions
; Correlation
; Forests
; Growth Rings
; Latitude
; Melting
; North America
; Plants
; Remote Sensing
; Time Measurement
; North America
英文摘要: We compared tree-ring width (TRW) and maximum latewood density (MXD) chronologies to remotely sensed indices of productivity (NDVI) and snowmelt since 1981 and to the instrumental temperature record at four arctic treeline sites in North America. Our results show that at these sites, TRW chronologies reflect temperatures less consistently than the MXD chronologies do and that the NDVI does not correlate significantly with TRW at high-frequency, i.e. when comparing yearly values. In contrast, the MXD chronologies correlate positively and significantly with NDVI and temperature during the growing season at all sites. Neither TRW or MXD chronologies appeared consistently influenced by the annual timing of snowmelt. A comparison of tree-ring chronologies and temperatures since 1900 confirms that MXD has tracked growing season temperature at these treeline sites throughout the past century. A spatial evaluation of the correlations further reveals that each of the MXD chronologies investigated here reflects interannual variation in NDVI and growing season temperatures across a large geographic region. As a result, they collectively provide a spatially comprehensive record of historic early-season canopy status as well as growing season temperatures for the high latitudes of North America. © 2012 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84868487692&doi=10.1016%2fj.gloplacha.2012.10.005&partnerID=40&md5=71ffdcc245111564cf6b62eb9ffbe364
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11292
Appears in Collections: 全球变化的国际研究计划
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作者单位: Woods Hole Research Center, 149 Woods Hole Road, Falmouth, MA 02540, United States
Recommended Citation:
Beck P.S.A.,Andreu-Hayles L.,D'Arrigo R.,et al. A large-scale coherent signal of canopy status in maximum latewood density of tree rings at arctic treeline in North America[J]. Global and Planetary Change,2013-01-01,100.