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首页> 外文期刊>Sbornik Narodniho Muzea v Praze, Rada B. Prirodovedecka >PANNONIAN VEGETATION FROM THE NORTHERN PART OF VIENNA BASIN
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PANNONIAN VEGETATION FROM THE NORTHERN PART OF VIENNA BASIN

机译：维也纳盆地北部的潘诺尼植被

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摘要

The studied pollen assemblages come from the Pannonian (Tortonian and Early Messinian) sediments in the Moravian and Slovakpart of the Vienna Basin. Vienna Basin represents a pull-apart basin situated between the Eastern Alps and Western Carpathian mountainranges. Due to the paleogeographic changes and climatic oscillations during the Late Miocene, the number of thermophilous taxa decrea-sed, and some of them disappeared completely. The variable heights and forms of the uplifted mountain chains created ideal conditions formixed mesophytic forests and extrazonal vegetation (Cedrus, Tsuga, Picea). The swamp, riparian, often hydrophilous (Azolla, Nymphaea,Potamogeton) and halophyte (Chenopodiaceae) plants represent coastal swamps, local lagoons, and marshlands. Occasional occurrences ofdinoflagellates indicate slightly higher salinities, whereas green algae of the genus Pediastrum represent freshwater environments. Theamount of herbaceous plants (Artemisia, Asteraceae, Lamiaceae, Polygonum, Daucaceae, Caryophyllaceae, Plantago) increased.
机译：研究的花粉组合来自维也纳盆地摩拉维亚和斯洛伐克部分的Pannonian（Tortonian和Messinian早期）沉积物。维也纳盆地代表位于东阿尔卑斯山和西喀尔巴阡山脉之间的拉拉盆地。由于中新世晚期的古地理变化和气候振荡，嗜热类群的数量减少，其中一些完全消失了。不同高度和形式的隆起的山链为混合的中生森林和地外植被（雪松，津贺，云杉）创造了理想条件。沼泽，河岸植物，通常是亲水性的（偶氮，睡莲，马铃薯）和盐生植物（藜科），代表了沿海沼泽，局部泻湖和沼泽地。偶数鞭毛藻的偶尔出现表明盐度略高，而Pediastrum属的绿藻代表淡水环境。草本植物（蒿，菊科，唇形科，Poly，菊科，石竹科，车前子）的数量增加。

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