Abstract

Comparative analysis of the composition of lipid biomarkers (n-alkanes and n-alkan-2-ones) in sphagnum mosses, herbaceous plants, heather dwarf shrubs, and peats of high bogs of Western Siberia was carried out by gas chromatography–mass spectrometry. It was shown that different marsh plant species differ in ratios between long-chain n-alkanes, and this fact makes it possible to diagnose the source of these compounds in peat. It was found that sphagnum peats occurring in high bogs formed in different natural and climatic conditions differ in the distribution of n-alkan-2-ones, which can be used for the reconstruction of paleoclimatic conditions.

中文翻译：

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正构烷烃和 n-Alkan-2-ones 作为西西伯利亚高沼泽泥炭和沼泽植物的脂质生物标志物

摘要

通过气相色谱-质谱法对西西伯利亚高沼泽的泥炭藓、草本植物、石南矮灌木和泥炭中脂质生物标志物（正构烷烃和正构烷烃 2-ones）的组成进行了比较分析。结果表明，不同的沼泽植物物种的长链正构烷烃之间的比例不同，这一事实使得诊断泥炭中这些化合物的来源成为可能。发现不同自然和气候条件形成的高沼泽泥炭中n -alkan-2-ones的分布存在差异，可用于古气候条件的重建。