DOI: 10.1016/j.quascirev.2017.06.024
Scopus记录号: 2-s2.0-85021712573
论文题名: Vegetation history since the last glacial maximum in the Ozark highlands (USA): A new record from Cupola Pond, Missouri
作者: Jones R.A. ; Williams J.W. ; Jackson S.T.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 170 起始页码: 174
结束页码: 187
语种: 英语
Scopus关键词: Charcoal
; Cupolas
; Domes
; Forestry
; Glacial geology
; Lakes
; Plants (botany)
; Last deglaciation
; Last Glacial Maximum
; Northern Hemispheres
; Plant communities
; Radiocarbon dates
; Southeastern US
; Vegetation dynamics
; Vegetation history
; Vegetation
; Fraxinus
; Nyssa
; Picea
; Preussia (ascomycete)
; Quercus
英文摘要: The timing and drivers of vegetation dynamics and formation of no-analog plant communities during the last deglaciation in the unglaciated southeastern US are poorly understood. We present a multi-proxy record spanning the past 19,800 years from Cupola Pond in the Ozarks Mountains, consisting of replicate high-resolution pollen records, 25 AMS radiocarbon dates, and macrofossil, charcoal, and coprophilous spore analyses. Full-glacial Pinus and Picea forests gave way to no-analog vegetation after 17,400 yr BP, followed by development of Quercus-dominated Holocene forests, with late Holocene rises in Pinus and Nyssa. Vegetation transitions, replicated in different cores, are closely linked to hemispheric climate events. Rising Quercus abundances coincide with increasing Northern Hemisphere temperatures and CO2 at 17,500 yr BP, declining Pinus and Picea at 14,500 yr BP are near the Bølling-Allerød onset, and rapid decline of Fraxinus and rise of Ostrya/Carpinus occur 12,700 yr BP during the Younger Dryas. The Cupola no-analog vegetation record is unusual for its early initiation (17,000 yr BP) and for its three vegetation zones, representing distinct rises of Fraxinus and Ostrya/Carpinus. Sporormiella was absent and sedimentary charcoal abundances were low throughout, suggesting that fire and megaherbivores were not locally important agents of disturbance and turnover. The Cupola record thus highlights the complexity of the late-glacial no-analog communities and suggests direct climatic regulation of their formation and disassembly. © 2017
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59156
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Botany and Program in Ecology, University of Wyoming, Laramie, WY, United States; Department of Geography & Nelson Center for Climatic Research, University of Wisconsin, Madison, WI, United States; DOI Southwest Climate Science Center, U.S. Geological Survey, 1064 E. Lowell St., Tucson, AZ, United States; Department of Geosciences, University of Arizona, Tucson, AZ, United States; Department of Biology, University of Science and Arts of Oklahoma, Chickasha, OK, United States
Recommended Citation:
Jones R.A.,Williams J.W.,Jackson S.T.. Vegetation history since the last glacial maximum in the Ozark highlands (USA): A new record from Cupola Pond, Missouri[J]. Quaternary Science Reviews,2017-01-01,170