DOI: 10.1016/j.quascirev.2015.06.017
Scopus记录号: 2-s2.0-84936875083
论文题名: Vegetation and climate change, fire-regime shifts and volcanic disturbance in Chiloé Continental (43°S) during the last 10,000 years
作者: Henríquez W.I. ; Moreno P.I. ; Alloway B.V. ; Villarosa G.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 123 起始页码: 158
结束页码: 167
语种: 英语
英文关键词: Chiloé Continental
; Northwestern Patagonia
; Temperate rainforest
; Volcanic disturbance
Scopus关键词: Charcoal
; Explosives
; Submarine geophysics
; Vegetation
; Volcanoes
; Disturbance regime
; Explosive volcanism
; Patagonia
; Southern westerly winds
; Temperate rainforest
; Vegetation change
; Vegetation response
; Volcanic disturbance
; Climate change
; charcoal
; climate variation
; community response
; environmental disturbance
; evergreen tree
; fire history
; Holocene
; long-term change
; palynology
; rainforest
; temperate environment
; tephra
; terrestrial ecosystem
; vegetation history
; volcanism
; Chile
; Chiloe Island
; Los Lagos
; Patagonia
; Chilo
英文摘要: Disentangling the roles of paleofires and explosive volcanism from climatic drivers of past vegetation change is a subject insufficiently addressed in the paleoecological literature. The coastal region of the Chiloé Continental sector of northwestern Patagonia is ideal in this regard considering its proximity to active eruptive centers and the possibility of establishing comparisons with more distal, upwind sites where volcanic influence is minimal. Here we present a fine-resolution pollen and macroscopic charcoal record from Lago Teo with the aim of documenting the local vegetation and climate history, and assessing the role of disturbance regimes as drivers of vegetation change during the last ~10,000 years.The Lago Teo record shows a conspicuous warm/dry interval between ~7500 and 10,000calyrs BP followed by a cooling trend and increase in precipitation that has persisted until the present, in agreement with previous studies in the region and interpretations of past southern westerly wind activity at multi-millennial scales. The presence of 26 tephras throughout the record allows examination of the relationship between explosive volcanism and vegetation change under contrasting climatic states of the Holocene. We found consistent statistically significant increases in Tepualia stipularis after tephra deposition over the last 10,000 years, in Eucryphia/Caldcluvia between 7500 and 10,000calyrs BP and in Hydrangea over the last 7500 years. Our results indicate a primary role of climate change as driver of long-term vegetation change and as a modulator of vegetation responses to volcanic disturbance at multidecadal and centennial timescales. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59863
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Department of Ecological Sciences and Millennium Institute of Ecology and Biodiversity, Universidad de Chile, Santiago, Chile; School of Geography, Environment and Earth Sciences, Victoria University of Wellington, Wellington, New Zealand; Instituto de Investigación en Biodiversidad y Medioambiente, CONICET-Universidad Nacional del Comahue, Bariloche, Argentina
Recommended Citation:
Henríquez W.I.,Moreno P.I.,Alloway B.V.,et al. Vegetation and climate change, fire-regime shifts and volcanic disturbance in Chiloé Continental (43°S) during the last 10,000 years[J]. Quaternary Science Reviews,2015-01-01,123