Preboreal oscillation in the light of multiproxy analyses—Early Holocene in Lake Jelonek (North Poland)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-04-25 DOI:10.1177/09596836231169993

M. Kramkowski, Anna Filbrand-Czaja, E. Zawisza, M. Rzodkiewicz, B. Kotrys, J. Mirosław‐Grabowska, M. Błaszkiewicz, Krzysztof Szewczyk, M. Słowiński

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Abstract

In this work, we studied the course of climatic fluctuations at the beginning of the Preboreal period using multiproxy analyses (Chironomidae, pollen, diatoms, Cladocera, stable isotopes, macrocharcoal, microlithofacial) combined with varve chronology of sediments. The results showed a decrease in the mean July temperature and stronger continentalism followed by climate wetting at the start of the Preboreal period. This was reflected in the remodeling of the vegetation cover from birch forests to more open spaces with grass vegetation dominance, as well as that of the species composition of Cladocera and diatoms, and the high variability of isotopic composition. In addition, the results showed the impact of local conditions (fires and relict permafrost) on the amplification of environmental responses due to climate cooling. The environmental transformations presented here correspond temporally to the changes that are well documented in other parts of Europe as the Preboreal Oscillation.

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多代用物分析下的波兰北部耶洛内克湖早全新世前寒带振荡

在这项工作中，我们使用多种多样性分析（摇蚊科、花粉、硅藻、枝角类、稳定同位素、宏相煤、微岩相）结合沉积物的变化年表，研究了前北方期初的气候波动过程。结果显示，在前北方期开始时，7月平均气温下降，大陆性更强，随后气候湿润。这反映在植被覆盖从桦树林到更开阔的草地植被占主导地位的空间的重塑，以及枝角类和硅藻的物种组成和同位素组成的高度可变性。此外，研究结果还显示了当地条件（火灾和残留的永久冻土）对气候降温导致的环境反应放大的影响。这里介绍的环境变化在时间上对应于欧洲其他地区被充分记录的变化，即北方涛动。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.