Non-Pollen Palynomorphs from Mid-Holocene Peat of the Raised Bog Borsteler Moor (Lower Saxony, Germany)

IF 0.6 Q4 GEOSCIENCES, MULTIDISCIPLINARY

Studia Quaternaria Pub Date : 2015-06-01 DOI:10.1515/squa-2015-0001

L. Shumilovskikh, F. Schlütz, Inke E M Achterberg, A. Bauerochse, H. Leuschner

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引用次数: 35

Abstract

Abstract In order to reconstruct regional vegetation changes and local conditions during the fen-bog transition in the Borsteler Moor (northwestern Germany), a sediment core covering the period be tween 7.1 and 4.5 cal kyrs BP was palynologically investigated. The pollen diagram demonstrates the dominance of oak forests and a gradual replacement of trees by raised bog vegetation with the wetter conditions in the Late Atlantic. At ~ 6 cal kyrs BP, the non-pollen palynomorphs (NPP) demonstrate the succession from mesotrophic conditions, clearly indicated by a number of fun gal spore types, to oligotrophic conditions, indicated by Sphagnum spores, Bryophytomyces sphagni, and testate amoebae Amphitrema, Assulina and Arcella, etc. Four relatively dry phases during the transition from fen to bog are clearly indicated by the dominance of Calluna and associated fungi as well as by the in crease of microcharcoal. Several new NPP types are described and known NPP types are identified. All NPP are discussed in the context of their palaeoecological indicator values.

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德国下萨克森州凸起沼泽Borsteler沼地中全新世泥炭的非花粉孢型

为了重建德国西北部Borsteler Moor沼泽过渡时期的区域植被变化和局地条件，对覆盖7.1 ~ 4.5 calkyrs BP的沉积物岩心进行了孢粉学研究。花粉图表明，在大西洋晚期，橡树林占主导地位，树木逐渐被潮湿条件下的沼泽植被所取代。在约6 calyrs BP时，非花粉孢子形态(NPP)表现出从中营养状态到少营养状态的演替过程，这些中营养状态由一些甘露孢子类型清楚地表明，由Sphagnum孢子，苔藓霉菌sphagni和无卵变形虫Amphitrema, Assulina和Arcella等表明。愈伤菌和相关真菌的优势以及微炭的增加清楚地表明，从沼泽到沼泽的转变过程中有四个相对干燥的阶段。描述了几种新的核电厂类型，并确定了已知的核电厂类型。所有NPP都是在它们的古生态指示值的背景下讨论的。

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来源期刊

Studia Quaternaria GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Studia Quaternaria is designed to publish scientific works concerning the Quaternary, on local, regional and global scale. Studia Quaternaria is interested in all fields of research dealing with stratigraphy and reconstruction of the past environments, including palaeogeography, palaeoecology, palaeoclimatology, palaeohydrology etc. The journal is also open to studies of natural environmental processes, and to recognition of mechanisms involved in the dynamics of our environment. The clue is that the Quaternary is still ongoing and vivid, and understanding of its past and present development support each other.