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首页> 外文期刊>Quaternary Science Reviews: The International Multidisciplinary Review Journal >Landslides increased Holocene habitat diversity on a flysch bedrock in IQ the Western Carpathians
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Landslides increased Holocene habitat diversity on a flysch bedrock in IQ the Western Carpathians

机译：Landslides在智北喀尔巴阡智雪石的杂草基岩上增加全新世栖息地多样性

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摘要

Landslides are an important natural phenomenon of the flysch Outer Western Carpathians that diversify the local topography and provide valuable microrefugia in the geomorphologically uniform region. For the first time, we reconstructed the continuous history of Carpathian landslide wetland - the Kotelnice mire, which initiated at the Pleistocene-Holocene transition, using joint analysis of abiotic proxies, pollen, plant macrofossils and testate amoebae (TA). We utilised modern training datasets of plants and TA to define ecological requirements of species and to determine indicators of either bog or fen habitats. We further compared pollen representation of selected woody species between two landslide-related wetlands and two spring fens, not related to landslides within the study region. The unique feature of the Kotelnice mire is the development of a nearly ombrotrophic bog at similar to 2500 cal BP that was after similar to 1500 years reversed to a poor fen by intense deforestation and pastoralism. Pollen analysis and its intraregional comparison demonstrate a dual refugial role of landslides in the Carpathians. In the Early Holocene and perhaps even in the Late Glacial, landslides provided refugia for warmth-and moisture demanding species (e.g. lime, elm, hazel, beech, maple). On the contrary, they provided shelter for cold-demanding boreal species (e.g. spruce, Eriophorum vaginatum, Sphagnum medium/divinum) in the Middle and Late Holocene. Because the analogous refugial role of landslides at both the recent and the Quaternary time scales has been reported from the flysch-like and volcanite bedrocks across the Northern Hemisphere, landslides deserve more attention in searching for regionally or even globally crucial refugia. (C) 2019 Elsevier Ltd. All rights reserved.
机译：Landslides是捕蝇外西喀尔巴阡山脉的重要自然现象，使本地地形多样化，并在地貌上均匀的地区提供有价值的微生物。我们首次重建了喀尔巴阡山脉滑坡湿地的不断历史 - Kotelnice Mire，在全兴 - 全新世过渡开始，使用非生物代理，花粉，植物大甲状腺素和睾丸（TA）的联合分析。我们利用植物的现代训练数据集和TA定义物种的生态要求，并确定沼泽或芬养病的指标。我们进一步比较了两种与滑坡相关的湿地和两个春福思之间所选木质物种的花粉表现，与研究区内的滑坡无关。 Kotelnice Mire的独特特征是在类似于2500年的令人难以置信的森林和牧区的贫困人口的情况下发展了几乎令人越来越令人扰动的沼泽。花粉分析及其内部比较表明了喀尔巴阡山脉山体滑坡的双重急切作用。在早期的全新世，也许甚至在晚期冰川，山体滑坡提供了避难所的温暖和水分苛刻物种（例如石灰，榆树，淡褐色，山毛榉木，枫木）。相反，他们在中东期中期和晚期的冷苛抗北欧物种（例如云杉，爱罗氏潮湿，Sphagnum中/ Divinum）提供庇护所。由于北半球的杂草状和火山岩岩石山脉在近期和季度鳞片上的类似难民作用，因此Landslides在寻找区域或甚至全球至关重要的难民时应更多地关注。 （c）2019年elestvier有限公司保留所有权利。

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