The paper presents research data on profiles of fatty acids in typical chernozems of various use. It is shown that organic matter degradation in typical chernozems is accompanied by depletion of fatty acids, while its accumulation results in an increase in their diversity. In this regard, the composition of fatty acids in soil profiles makes it possible to classify soils with respect to predominant organic matter transformation processes. It has been revealed that the distribution of fatty acids in soil aggregates of different sizes is inhomogeneous in uncultivated chernozems, but homogeneous in developed soils. Eicosapentaenoic acid, which is a moiety of microalgae, and dihomo-gamma-linolenic acid, which is synthesized by Mortierella fungi, can be considered biomarkers of the transformation of cultivated typical chernozem into abandoned land.

中文翻译：

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脂肪酸在各种用途的典型黑钙石中作为生物标志物

本文介绍了各种用途的典型黑钙石中脂肪酸谱的研究数据。结果表明，典型黑钙质中的有机物降解伴随着脂肪酸的消耗，而其积累导致它们多样性的增加。在这方面，土壤剖面中脂肪酸的组成使得可以根据主要的有机物转化过程对土壤进行分类。已经发现，在未耕种的黑钙土中脂肪酸在不同大小的土壤聚集体中的分布是不均匀的，但在发达的土壤中是均匀的。二十碳五烯酸（微藻的一部分）和二高-γ-亚麻酸（由Mortierella合成） 真菌，可以被认为是将典型黑钙土转化为荒地的生物标记。