Palaeobotanic and isotopic analysis of late subboreal and early subatlantic peat from engbertsdijksveen VII, The Netherlands

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Abstract

A peat section from the raised bog of Engbertsdijksveen was subjected to isotopic analysis in addition to palaeobotanic analysis.

This section studied embraces the end of the Subboreal and the beginning of the Subatlantic. The climatic deterioration that occurred during this transition, as reflected by the Corylus pollen curve, also influenced the composition of the stands of bog vegetation.

The growing impact of human activities in this period is indicated by an increased in abundance of pollen of Cerealia, Plantago lanceolata, Rumex and Poaceae.

The stable isotope data, i.e. the 2H1H ratios and the 18O16O ratios of cellulose, exhibit, apart from some variation, a marked change at the transition to cooler and water conditions.

Although there is a qualitative correspondence between the alterations of the isotopic ratios and the climatic change, a quantitative interpretation which might eventually enable an independent assessment of climatic changes will require comparison with concurrent profiles.

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