Progressive substitution of a subtropical forest for a temperate one during the middle Miocene climate cooling in Central Europe according to palynological data from cores Tengelic-2 and Hidas-53 (Pannonian Basin, Hungary)
Progressive substitution of a subtropical forest for a temperate one during the middle Miocene climate cooling in Central Europe according to palynological data from cores Tengelic-2 and Hidas-53 (Pannonian Basin, Hungary)
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DOI：
10.1016/j.revpalbo.2006.05.004
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发表时间：
2006-11-01
影响因子：
1.9
通讯作者：
Jimenez-Moreno, Gonzalo
中科院分区：
文献类型：
--
作者：
Jimenez-Moreno, Gonzalo
对Tengelic-2和Hidas-53（匈牙利）岩芯的Karpatian-Sarmatian（早中新世晚期-中中新世）间隔的孢粉学分析表明，存在一个在亚热带-暖温带潮湿气候中发育的垂直带森林，反映了所谓的中新世气候最佳状态。早中新世晚期至中中新世晚期的花粉变化与气候变化有关。Burdigalian和Langhian时期的植被主要由喜热元素如万年青树和黄杞属植物组成，是现今低海拔地区（即中国东南部）典型的雨和万年青森林。在塞拉瓦利亚期间，一些嗜热元素强烈减少，其中一些从中欧地区消失。因此，由于几种万年青植物的大量减少和丧失，雨生和常绿落叶混交林发生了巨大的变化。这类植被逐渐被落叶栎、水青冈、赤杨、槭、鹅耳枥、榆、榉树等落叶中温植物所取代，同时，海拔针叶树的出现也在增加，这种气候变冷与全球和区域气候变化有关。(c)2006 Elsevier B. V.保留所有权利。
The palynological analysis in the Karpatian-Sarmatian (late Early-Middle Miocene) interval of the cores Tengelic-2 and Hidas-53 (Hungary) reveals the existence of a forest organized in altitudinal belts, developed in a subtropical-warm temperate humid climate, reflecting the so-called Miocene climatic optimum., Pollen changes from the late early Miocene to the late middle Miocene have been observed and are related to climatic changes. The vegetation during the Burdigalian and the Langhian was dominated by thermophilous elements such as evergreen trees and Engelhardia, typical of a present day rain and evergreen forest at low altitudes (i.e. SE China). During the Serravallian several thermophilous elements strongly decreased, and some of them disappeared from the central European area. Thus, the rain and evergreen-deciduous mixed forest suffered a great transformation due to the loss and decrease in the abundance of several evergreen plants. This kind of vegetation was progressively substituted by deciduous and mesothermic plants such as deciduous Quercus, and Fagus, Alnus, Acer, Carpinus, Ulmus, Zelkova, etc. At the same time, the presence of altitude coniferous trees increased.This climatic cooling is correlated with global and regional climatic changes. (c) 2006 Elsevier B.V. All rights reserved.