globalchange  > 气候减缓与适应
DOI: 10.1002/2017JG004196
Scopus记录号: 2-s2.0-85043717821
论文题名:
Strip-Bark Morphology and Radial Growth Trends in Ancient Pinus sibirica Trees From Central Mongolia
作者: Leland C.; Cook E.R.; Andreu-Hayles L.; Pederson N.; Hessl A.; Anchukaitis K.J.; Byambasuren O.; Nachin B.; Davi N.; D'Arrigo R.; Griffin K.; Bishop D.A.; Rao M.P.
刊名: Journal of Geophysical Research: Biogeosciences
ISSN: 21698953
出版年: 2018
卷: 123, 期:3
起始页码: 945
结束页码: 959
语种: 英语
英文关键词: cambial dieback ; dendroclimatology ; standardization ; strip bark
Scopus关键词: bark ; coniferous tree ; dendrochronology ; dendroclimatology ; dieback ; ecophysiology ; growth ; morphology ; reconstruction ; tree ring ; Mongolia ; Pinus sibirica
英文摘要: Some of the oldest and most important trees used for dendroclimatic reconstructions develop strip-bark morphology, in which only a portion of the stem contains living tissue. Yet the ecophysiological factors initiating strip bark and the potential effect of cambial dieback on annual ring widths and tree-ring estimates of past climate remain poorly understood. Using a combination of field observations and tree-ring data, we investigate the causes and timing of cambial dieback events in Pinus sibirica strip-bark trees from central Mongolia and compare the radial growth rates and trends of strip-bark and whole-bark trees over the past 515 years. Results indicate that strip bark is more common on the southern aspect of trees, and dieback events were most prevalent in the 19th century, a cold and dry period. Further, strip-bark and whole-bark trees have differing centennial trends, with strip-bark trees exhibiting notably large increases in ring widths at the beginning of the 20th century. We find a steeper positive trend in the strip-bark chronology relative to the whole-bark chronology when standardizing with age-dependent splines. We hypothesize that localized warming on the southern side of stems due to solar irradiance results in physiological damage and dieback and leads to increasing tree-ring increment along the living portion of strip-bark trees. Because the impact of cambial dieback on ring widths likely varies depending on species and site, we suggest conducting a comparison of strip-bark and whole-bark ring widths before statistically treating ring-width data for climate reconstructions. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114385
Appears in Collections:气候减缓与适应

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作者单位: Tree-Ring Laboratory, Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; Department of Earth and Environmental Sciences, Columbia University, New York, NY, United States; Harvard Forest, Harvard University, Petersham, MA, United States; Department of Geology and Geography, West Virginia University, Morgantown, WV, United States; School of Geography and Development and Laboratory of Tree Ring Research, University of Arizona, Tucson, AZ, United States; Department of Environmental and Forest Engineering, National University of Mongolia, Ulaanbaatar, Mongolia; William Paterson University, Wayne, NJ, United States; Department of Ecology, Evolution and Environmental Biology, Columbia University, New York, NY, United States

Recommended Citation:
Leland C.,Cook E.R.,Andreu-Hayles L.,et al. Strip-Bark Morphology and Radial Growth Trends in Ancient Pinus sibirica Trees From Central Mongolia[J]. Journal of Geophysical Research: Biogeosciences,2018-01-01,123(3)
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