Early-Holocene spruce, Picea abies (L.) Karst., in west central Sweden as revealed by pollen analysis
Early-Holocene spruce, Picea abies (L.) Karst., in west central Sweden as revealed by pollen analysis
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花粉分析揭示了瑞典中西部的全新世早期云杉，Picea abies (L.) Karst.
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
H. von Stedingk
中科院分区：
文献类型：
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作者：
U. Segerström;H. von Stedingk
在瑞典斯坎德群岛发现的冰期晚期和全新世早期的挪威云杉（Picea abies）化石挑战了基于花粉分析的流行理论，即云杉到达瑞典的时间相当晚（约距今 3500 年）。本研究的目的是调查是否可以通过花粉分析有效评估全新世早期云杉的建立。对瑞典斯坎德斯南部河谷的泥炭沼泽进行了四次花粉分析，那里自晚冰期以来就一直存在云杉。对一处地点进行了大型木材化石遗迹的分析。花粉图显示了当地植被近一万年的历史，并揭示了云杉花粉的首次出现。 9000 年历。血压。云杉显然是在距今 9000 年左右在山谷北部定居的，此后向南扩展。研究结果根据云杉的背景花粉信号（即当地花粉与区域花粉）、全新世期间该地点是否存在森林以及与调查目的相关的研究地点的选择进行了讨论。本研究中应用的花粉分析被证明是在局部和景观层面研究全新世早期树木迁移的相关方法。
Lateglacial and early Holocene macrofossils of Norway spruce (Picea abies) found in the Swedish Scandes have challenged the prevailing theory, based on pollen analyses, that spruce arrived rather late (c. 3500 yr cal. BP) to Sweden. The aim of this study was to investigate whether the early-Holocene spruce establishment could be effectively assessed by pollen analysis. Four pollen analyses were carried out on peat mires in a river valley in the southern Swedish Scandes, where spruce has been present since the lateglacial. One site was analysed for the occurrence of macrofossil wood remains. The pollen diagrams display the local vegetation history for the last c., 10 000 years, and reveal the first occurrence of spruce pollen c. 9000 yr cal. BP. Spruce apparently became established in the northern part of the valley around 9000 BP, and thereafter spread south wards. The results are discussed in terms of the background pollen signal for spruce, i.e., local versus regional pollen, the presence or absence of forest on the sites during the Holocene, and the selection of study sites in relation to the aim of the investigation. Pollen analysis, as applied in this study, is shown to be a relevant method for the study of tree immigration in the early Holocene, at both a local and a landscape level.