Abstract—

The soil cover of mire plains is traditionally considered as fairly homogeneous, which is largely due to the difficulties of the systematics of peat soils in the modern Russian soil classification system. This article aims to analyze some characteristics of the soil cover patterns (soil cover composition, distribution of its components by classes of combinations and their association with mire biogeocenoses) of the northern taiga mire plain lying to the north of the Sibirskie Uvaly Ridge in the basin of the Kazym River, Khanty-Mansi Autonomous Okrug-Yugra. Soil maps of 34 key sites with a total area of 595.86 ha have been compiled on a scale of 1 : 5000. Overall, 33 soil mapping units are identified, including 30 units of different peat soils. Taiga soils are represented by iron-illuvial podzols and their combinations with gley soils. Thus, the main contribution to pedodiversity is provided by mire landscapes. The soil cover pattern of oligotrophic string bogs consists of low-contrasting combinations of oligotrophic peat soils differing in their thickness and the botanical composition of peat. In the areas of string bogs with water pools (lakes), low-contrasting combinations of oligotrophic peat soils differing in their botanical composition and contrasting combinations (complexes) of these soils with oligotrophic wet regressive peat soils of flarks. The importance of distinguishing between the soils of these combinations is related to different rates of the organic matter mineralization in them. Mesotrophic peat soils of key sites mainly compose individual elementary soil areas. In comparison with oligotrophic peat soils, they display a higher pedodiversity related to the botanical composition, degree of decomposition, and thickness of the peat layer. At the same time, the widespread distribution of complexes of oligotrophic and mesotrophic peat soils in the aapa mires, which was supposed in the 1980s, has not been confirmed; such complexes occupy 5.34% of the total mapped area.

中文翻译：

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西西伯利亚北泰加亚带泥沼平原（卡济姆河流域）土壤覆盖格局

摘要-

泥泞平原的土壤覆盖传统上被认为是相当均匀的，这主要是由于现代俄罗斯土壤分类系统中泥炭土壤系统学的困难。本文旨在分析流域内西伯利亚乌瓦利脊以北的北部针叶林沼泽平原土壤覆盖模式的一些特征（土壤覆盖组成、其组分按组合类别的分布及其与沼泽生物地球新生的关系）。卡济姆河，汉特-曼西自治州尤格拉。以 1:5000 的比例编制了 34 个重点地点的土壤图，总面积 595.86 公顷。总共确定了 33 个土壤制图单元，其中包括 30 个不同泥炭土的单元。针叶林土壤以铁-冲积灰化土及其与格莱土的组合为代表。因此，对土壤多样性的主要贡献是由沼泽景观提供的。贫养线状沼泽的土壤覆盖模式由不同厚度和泥炭植物组成的贫养泥炭土壤的低对比度组合组成。在带水池（湖泊）的绳状沼泽地区，贫营养泥炭土壤的植物成分不同的低对比组合以及这些土壤与贫营养湿退行泥炭土的对比组合（复合物）。区分这些组合的土壤的重要性与它们中有机质矿化的不同速率有关。重点地点的中营养泥炭土主要构成单个基本土区。与贫营养泥炭土相比，它们表现出与植物组成、分解程度和泥炭层厚度相关的更高的土壤多样性。同时，1980 年代推测的 aapa 泥炭中贫营养和中营养泥炭土复合体的广泛分布尚未得到证实；此类综合体占地图总面积的 5.34%。