DOI: 10.1016/j.quascirev.2013.09.014
Scopus记录号: 2-s2.0-84886643937
论文题名: 12,000-Years of fire regime drivers in the lowlands of transylvania (Central-Eastern Europe): A data-model approach
作者: Feurdean A. ; Liakka J. ; Vannière B. ; Marinova E. ; Hutchinson S.M. ; Mosburgger V. ; Hickler T.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 81 起始页码: 48
结束页码: 61
语种: 英语
英文关键词: Charred plant remains
; Climate simulations
; Fire frequency
; Grasslands
; Holocene
; Human impact
; Lake level fluctuations
; Open woodland
; Pollen
; Sedimentary charcoal
; Younger Dryas
Scopus关键词: Charred plant remains
; Climate simulation
; Fire frequencies
; Grasslands
; Holocenes
; Human impact
; Lake level fluctuations
; Open woodland
; Pollen
; Younger Dryas
; Charcoal
; Lakes
; Plants (botany)
; Sedimentology
; Soil moisture
; Fires
; agricultural land
; anthropogenic effect
; biomass
; charcoal
; climatic region
; forest fire
; global climate
; Holocene
; lake level
; pollen
; runoff
; soil moisture
; woodland
; Younger Dryas
; Europe
; Romania
; Transylvania
英文摘要: The usefulness of sedimentary charcoal records to document centennial to millennial scale trends in aspects of fire regimes (frequency, severity) is widely acknowledged, yet the long-term variability in these regimes is poorly understood. Here, we use a high-resolution, multi-proxy analysis of a lacustrine sequence located in the lowlands of Transylvania (NW Romania), alongside global climate simulations in order to disentangle the drivers of fire regimes in this dry climatic region of Central-Eastern Europe. Periods of greater fire activity and frequency occurred between 10,700 and 7100calyrBP (mean Fire Interval=mFI 112yr), and between 3300 and 700calyrBP (mFI 150yr), whereas intervals of lower fire activity were recorded between 12,000 and 10,700calyrBP (mFI 217yr), 7100 and 3300calyrBP (mFI 317yr), and over last 700 years (no fire events detected). We found good correlations between simulated early summer (June, July) soil moisture content and near-surface air temperature with fire activity, particularly for the early to mid Holocene. A climate-fire relationship is further supported by local hydrological changes, i.e., lake level and runoff fluctuations. Fuel limitation, as a result of arid and strongly seasonal climatic conditions, led to low fire activity before 10,700calyrBP. However, fires were most frequent during climatically drier phases for the remaining, fuel-sufficient, part of the Holocene. Our results also suggest that the occurrence of more frequent fires in the early Holocene has kept woodlands open, promoted grassland abundance and sustained a more flammable ecosystem (mFI<150years) whereas the decline in fire risk under cooler and wetter climate conditions (mFI=317years) favoured woodland development. From 3300calyrBP, human impacts clearly were partly responsible for changes in fire activity, first increasing fire frequency and severity in periods with fire-favourable climatic conditions (halving the mFI from 300 years to about 150 years), then effectively suppressing fires over the last several centuries. Given the projected future temperature increase and moisture decline and the biomass accumulation due to the agricultural land abandonment in the region, natural fire frequency would be expected to return to <150 years. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60447
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Senckenberg Research Institute and Natural History Museum, Senckenberganlage 25, 60325 Frankfurt am Main, Germany; Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325 Frankfurt am Main, Germany; CNRS, UMR 6249 Chrono-Environnement, Université de Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France; Centre for Archaeological Sciences, University of Leuven, Celestijnenlaan 200E, Bus 2408, 3001 Leuven, Belgium; School of Environment and Life Sciences, University of Salford, Salford M5 4WT, United Kingdom; Goethe University, Department of Physical Geography, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
Recommended Citation:
Feurdean A.,Liakka J.,Vannière B.,et al. 12,000-Years of fire regime drivers in the lowlands of transylvania (Central-Eastern Europe): A data-model approach[J]. Quaternary Science Reviews,2013-01-01,81