DOI: 10.1016/j.quascirev.2015.11.001
Scopus记录号: 2-s2.0-84949257296
论文题名: Long-term man-environment interactions in the Bolivian Amazon: 8000 years of vegetation dynamics
作者: Brugger S.O. ; Gobet E. ; van Leeuwen J.F.N. ; Ledru M.-P. ; Colombaroli D. ; van der Knaap W.O. ; Lombardo U. ; Escobar-Torrez K. ; Finsinger W. ; Rodrigues L. ; Giesche A. ; Zarate M. ; Veit H. ; Tinner W.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 132 起始页码: 114
结束页码: 128
语种: 英语
英文关键词: Amazonia
; Cerrado
; European impact
; Fire history
; Land use
; Llanos de Moxos
; Palynology
; Pre-Columbian settlements
; Rainforest
; Zea mays
Scopus关键词: Crops
; Economics
; Fires
; Forestry
; Land use
; Plants (botany)
; Vegetation
; Wetlands
; Amazonia
; Cerrado
; European impact
; Fire history
; Llanos de Moxos
; Palynology
; Pre-Columbian
; Rainforest
; Zea mays
; Environmental impact
; Annonaceae
; Avena
; Cucurbitaceae
; Rumex acetosella
; Zea mays
英文摘要: Only few studies documenting the vegetation history of the Llanos de Moxos, one of the largest seasonally flooded wetland areas in South America, are available and little is known about the environmental impact of pre-Columbian settlements. We use radiocarbon-dated terrestrial plant macrofossils to establish a sound chronology and palynological analyses to reconstruct the vegetation and fire history of the Lago Rogaguado area. The sedimentary pollen and spore record suggests that wetland and wooded savannah (Cerrado) environments occurred around the lake between 8100 and 5800 cal BP. Fire activity was high during this period and was probably connected to the dry Cerrado environments. The pollen evidence suggests early plant cultivation (. Zea mays, Annonaceae and Cucurbitaceae) from 6500 cal BP onwards, which is significantly earlier than hitherto assumed for Amazonia. Gallery forests expanded after 5800 cal BP, when fire activity strongly declined. Forest expansion intensified around 2800 cal BP and continued until 2000 cal BP, when forest cover reached its maximum and fire activity its minimum. The late-Holocene forest expansion to the south and the decrease of fire activity may have resulted from a climatic shift to moister conditions (possibly a shorter dry season). New crops (e.g. Avena-type) or adventive plants (e.g. Rumex acetosella-type) document the impact of European economies after ca. 500 cal BP. Land use intensity remained rather stable over the most recent centuries, arguing against a collapse of settlements in response to the arrival of Europeans, as reconstructed from other Amazonian pollen records. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59706
Appears in Collections: 过去全球变化的重建
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作者单位: Institute of Plant Sciences, Oeschger Centre for Climate Change Research, University of Bern, Altenbergrain 21, Bern, Switzerland; Institute of Geography, University of Bern, Hallerstrasse 12, Bern, Switzerland; Institut des Sciences de l'Evolution, CNRS UM2 IRD EPHE, Place Eugène Bataillon, Montpellier Cedex, France; Herbario Nacional de Bolivia, Unidad de Palinología, Universidad Mayor de San Andrés Instituto de Ecología Calle27, Cota Cota Campus Universitario, La Paz, Bolivia; Herbário Forestal Nacional Martín Cárdenas, Centro de Biodiversidad y Genética, Universidad Mayor de San Simón, Parque la Torre, Casilla 538, Cochabamba, Bolivia
Recommended Citation:
Brugger S.O.,Gobet E.,van Leeuwen J.F.N.,et al. Long-term man-environment interactions in the Bolivian Amazon: 8000 years of vegetation dynamics[J]. Quaternary Science Reviews,2016-01-01,132