DOI: 10.1016/j.quascirev.2018.12.013
Scopus记录号: 2-s2.0-85058556995
论文题名: Vegetation and climate changes during the last two glacial-interglacial cycles in the western Mediterranean: A new long pollen record from Padul (southern Iberian Peninsula)
作者: Camuera J. ; Jiménez-Moreno G. ; Ramos-Román M.J. ; García-Alix A. ; Toney J.L. ; Anderson R.S. ; Jiménez-Espejo F. ; Bright J. ; Webster C. ; Yanes Y. ; Carrión J.S.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2019
卷: 205 起始页码: 86
结束页码: 105
语种: 英语
英文关键词: Climate
; Environmental changes
; Glacial-interglacial cycles
; Lake level
; Padul
; Vegetation
Scopus关键词: Evapotranspiration
; Forestry
; Geographical regions
; Glacial geology
; Lakes
; Salinity measurement
; Sedimentology
; Vegetation
; Water levels
; Climate
; Environmental change
; Glacial-interglacial cycles
; Lake levels
; Padul
; Climate change
; climate variation
; evapotranspiration
; glacial-interglacial cycle
; interstitial environment
; lake level
; Mediterranean environment
; palynology
; pollen
; precipitation (climatology)
; proxy climate record
; reconstruction
; sedimentary sequence
; vegetation cover
; Andalucia
; Granada [Andalucia]
; Iberian Peninsula
; Padul Basin
; Spain
; Xerophyta
英文摘要: A new sediment core from Padul, Padul-15-05, provides a long and continuous sedimentary and paleoenvironmental record of the last ∼200 kyr. Here we present a detailed palynological study from this sedimentary sequence with new vegetation and paleoenvironmental data and a climatic interpretation for the last two climatic cycles from the southern Iberian Peninsula in the western Mediterranean region. Pollen analysis from this core shows orbital-scale vegetation oscillations (mainly forced by precession and eccentricity) pointing into insolation as the principal factor controlling vegetation changes at this latitude. The last two glacial-interglacial cycles (from MIS 6 to the present) as well as stadial and interstadial phases are well represented and characterized by significant oscillations in Mediterranean forest in the area, but several differences with respect to other Mediterranean long pollen records can be recognized. Some of these disparities between regions seem to be more related to different precipitation rates linked to the specific geographical features (e.g. strong topographic relief) than to latitudinal differences between the sites. In addition, a lake level reconstruction based on palynological data was developed and compared with the previous reconstruction from this record, representing local environmental changes in the Padul wetland that seems to be related to precipitation/evapotranspiration balance, and therefore, to changes in regional climate conditions. During glacial/stadial conditions recorded by maxima in xerophytes, the p/e increased due to very low evapotranspiration, resulting in high lake levels, while during warmer interglacial/interstadial phases (except for the MIS 5e), mainly represented in this record by maxima in the Mediterranean forest, water level decreased as a result of high evapotranspiration exceeding precipitation input. The comparison of the new Padul-15-05 pollen record with the two previous palynological studies from Padul shows significant differences mainly due to disagreements in the age control of the sequences. This study shows that an accurate age-depth model becomes essential when interpreting long paleoenvironmental and paleoclimate records. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117402
Appears in Collections: 气候变化与战略
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Recommended Citation:
Camuera J.,Jiménez-Moreno G.,Ramos-Román M.J.,et al. Vegetation and climate changes during the last two glacial-interglacial cycles in the western Mediterranean: A new long pollen record from Padul (southern Iberian Peninsula)[J]. Quaternary Science Reviews,2019-01-01,205