Holocene evolution of a lowland Scottish landscape: Kirkpatrick Fleming. Part I, peat- and pollen-stratigraphic evidence for raised moss development and climatic change
Holocene evolution of a lowland Scottish landscape: Kirkpatrick Fleming. Part I, peat- and pollen-stratigraphic evidence for raised moss development and climatic change
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苏格兰低地景观的全新世演化：柯克帕特里克·弗莱明。
DOI：
10.1177/095968369500500108
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
R. Tipping
中科院分区：
文献类型：
--
作者：
R. Tipping
本系列论文讨论了全新世期间改变典型苏格兰低地景观的主要自然和人为环境变化。本文将沉积物和花粉地层技术以及放射性碳测年技术应用于邓弗里斯郡东部 Burnfoothill Moss 的一个凸起沼泽的地层学，以推断沼泽内地下水位的变化，并由此推断有效降水的变化。该盆地最初是一个浅池塘，在距今 9600 年，可能是在一个气候干燥的时期，迅速被沼泽泥炭所占据，该时期结束于公元 1000 年。距今8700年。在 7700 卡路里左右沼泽表面发生重大变化之前，沼泽表面湿度出现短暂波动。 BP，代表从沼泽泥炭到凸起苔藓的转变。据信，对周围林地的人为干扰破坏了泥炭内的水平衡。较干燥的沼泽地表条件发生在 c。 6700 卡路里BP，并在 5250 cal 左右转向湿润气候。 BP，但可能更大量的湿移记录在 c。 4000 卡路里血压。在c。 1900 口径BP 认识到气候干燥转变，结束于 c。 1200 卡路里血压。稍早于“小冰河时代”，以c之前的非常潮湿的阶段为代表。 400 卡路里BP，是 c 之间的干旱期。 600 和 400 卡路里。血压。
This series of papers addresses the principal natural and anthropogenic environmental changes that have transformed a typical lowland Scottish landscape during the Holocene. Sediment- and pollen- stratigraphic techniques, together with radiocarbon dating, are applied in this paper to the stratigraphy of a raised bog at Burnfoothill Moss, eastern Dumfriesshire, to deduce changes in groundwater levels within the bog, and by inference, changes in effective precipitation. The basin, initially a shallow pond, was rapidly colonized by fen peat at 9600 BP, possibly during a phase of drier climate, which ended at c. 8700 BP. Short-lived fluctuations in bog-surface wetness are identified before a major change to a wetter bog surface at around 7700 cal. BP, representing the transformation from fen peat to raised moss. Anthropogenic interference with surrounding woodland is believed to have destabilized the water balance within the peat. Drier bog-surface conditions occur at c. 6700 cal. BP, and a shift to a wetter climate at around 5250 cal. BP, but a perhaps more substantial wet shift is recorded at c. 4000 cal. BP. At c. 1900 cal. BP a dry climate shift is recognized, ending at c. 1200 cal. BP. Slightly prior to the 'Little Ice Age', represented by a very wet phase before c. 400 cal. BP, is a dry period between c. 600 and 400 cal. BP.