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Small peatland with a big story: 600-year paleoecological and historical data from a kettle-hole peatland in Western Russia
The Holocene ( IF 2.4 ) Pub Date : 2021-07-19 , DOI: 10.1177/09596836211033224
Agnieszka Mroczkowska 1, 2 , Piotr Kittel 2 , Katarzyna Marcisz 3 , Ekaterina Dolbunova 4 , Emilie Gauthier 5 , Mariusz Lamentowicz 3 , Andrey Mazurkevich 4 , Milena Obremska 6 , Mateusz Płóciennik 7 , Mateusz Kramkowski 8 , Dominika Łuców 1, 3 , Yuriy Kublitskiy 9 , Michał Słowiński 1
Affiliation  

Peatlands are important records of past environmental changes. Based on a multiproxy analysis, the main factors influencing the evolution of a peatland can be divided into autogenic and allogenic. Among the important allogenic factors, apart from climate change, are deforestation and drainage, which are directly associated with human impact. Numerous consequences arise from these processes, the most important of which are physical and chemical denudation in the catchment and the related hydrological disturbances in the catchment and peatland. The present study determined how human activities and the past climatic variability mutually influenced the development of a small peatland ecosystem. The main goals of the study were: (1) to trace the local changes of the peatland history over the past 600 years, (2) to investigate their relationship with changes in regional hydroclimate patterns, and (3) to estimate the sensitivity of a small peatland to natural and human impact. Our reconstructions were based on a multiproxy analysis, including the analysis of pollen, macrofossils, Chironomidae, Cladocera, and testate amoebae. Our results showed that, depending on the changes in water level, the history of peatland can be divided into three phases as follows: 1/the phase of stable natural conditions, 2/phase of weak changes, and 3/phase of significant changes in the catchment. Additionally, to better understand the importance of the size of catchment and the size of the depositional basin in the evolution of the studied peatland ecosystem, we compared data from two peatlands – large and small – located close to each other. The results of our study indicated that “size matters,” and that larger peatlands are much more resilient and resistant to rapid changes occurring in the direct catchment due to human activities, whereas small peatlands are more sensitive and perfect as archives of environmental changes.



中文翻译:

小泥炭地大故事:来自俄罗斯西部水壶孔泥炭地的 600 年古生态和历史数据

泥炭地是过去环境变化的重要记录。基于多代理分析,影响泥炭地演化的主要因素可分为自体和异体。除气候变化外,重要的同种异体因素包括与人类影响直接相关的森林砍伐和排水。这些过程产生了许多后果,其中最重要的是流域的物理和化学剥蚀以及流域和泥炭地中相关的水文干扰。本研究确定了人类活动和过去的气候变化如何相互影响小型泥炭地生态系统的发展。研究的主要目标是:(1)追溯过去 600 年来泥炭地历史的局部变化,(2) 调查它们与区域水文气候模式变化的关系,以及 (3) 估计小型泥炭地对自然和人类影响的敏感性。我们的重建基于多代理分析,包括对花粉、大型化石、摇蚊科、枝角类和有遗嘱变形虫的分析。我们的研究结果表明,根据水位变化,泥炭地的历史可以分为三个阶段:1/自然条件稳定阶段,2/弱变化阶段,3/显着变化阶段。集水区。此外,为了更好地了解流域大小和沉积盆地大小在所研究的泥炭地生态系统演化中的重要性,我们比较了两个彼此靠近的泥炭地的数据——大的和小的。

更新日期:2021-07-20
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