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DOI10.1016/j.quascirev.2018.12.013
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)
Camuera, Jon1; Jimenez-Moreno, Gonzalo1; Ramos-Roman, Maria J.1; Garcia-Alix, Antonio1,2; Toney, Jaime L.3; Anderson, R. Scott4; Jimenez-Espejo, Francisco2,5; Bright, Jordon6; Webster, Cole4; Yanes, Yurena7; Carrion, Jose S.8
发表日期2019
ISSN0277-3791
卷号205页码:86-105
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 similar to 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. (C) 2018 Elsevier Ltd. All rights reserved.


WOS研究方向Physical Geography ; Geology
来源期刊QUATERNARY SCIENCE REVIEWS
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/92540
作者单位1.Univ Granada, Dept Estratig & Paleontol, Granada, Spain;
2.Univ Granada, CSIC, IACT, Granada, Spain;
3.Univ Glasgow, Sch Geog & Earth Sci, Glasgow, Lanark, Scotland;
4.No Arizona Univ, Sch Earth Sci & Environm Sustainabil, Flagstaff, AZ USA;
5.Japan Agcy Marine Earth Sci & Technol JAMSTEC, Dept Biogeochem, Yokosuka, Kanagawa, Japan;
6.7351 E Speedway Blvd,30C, Tucson, AZ USA;
7.Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA;
8.Univ Murcia, Fac Biol, Dept Biol Vegetal, Murcia, Spain
推荐引用方式
GB/T 7714
Camuera, Jon,Jimenez-Moreno, Gonzalo,Ramos-Roman, Maria 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],2019,205:86-105.
APA Camuera, Jon.,Jimenez-Moreno, Gonzalo.,Ramos-Roman, Maria J..,Garcia-Alix, Antonio.,Toney, Jaime L..,...&Carrion, Jose S..(2019).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).QUATERNARY SCIENCE REVIEWS,205,86-105.
MLA Camuera, Jon,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)".QUATERNARY SCIENCE REVIEWS 205(2019):86-105.
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