Abstract

The vertical zonality of the soil cover of the Verkhoyansk mountainous soil province is discussed. The soils of the landscape-ecological profile in the area of the Arkachan Plateau (65° N, 130° E) have been studied. Their morphogenetic characteristics and position in the new Russian soil classification system are analyzed. The absolute height of the mountains reaches 1200 m, the relative height ranges from 400 to 500 m. The plateau is composed of sandstone, siltstone, and shale of the Mesozoic age. The climate is cold and sharply continental. Permafrost has a continuous character. However, in the profile of mountainous soils, permafrost is often absent, as its upper table lies below the stony soil profile. In the vertical zonality of the Arkachan Plateau, mountainous tundra zone (>1100 m a.s.l.) and mountainous taiga zone (<1000 m a.s.l.) predominate and are characterized by the development of lithozems (Leptosols), peat lithozems (Cryic Epirockic Histosols), and mucky lithozems (Eutric Histic Skeletic Leptosols). On the terraces of mountain rivers, thin gleyic cryozems (Turbic Cryosols) are formed; stony peat gleyzems (Histic Reductaquic Cryosols) are found in accumulative zones on slopes, and gray-humus alluvial soils (Skeletic Leptosols) are developed on the floodplains. Thin profiles, peaty and raw-humus organic horizons, stoniness, acid or slightly acid reaction, low base saturation in topsoil horizons, and weakly pronounced morphological and physicochemical differentiation of the profile are typical of all the studied soils. The results of this study can be used to develop the database on poorly studied soils of mountainous areas and their characteristic features.

中文翻译：

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阿尔卡Plate高原地区Verkhoyansk山脉的土壤

摘要

讨论了Verkhoyansk山区土壤省的土壤覆盖物的垂直分区。研究了Arkachan高原地区（65°N，130°E）的景观生态剖面土壤。分析了它们的形态发生特征和在新的俄罗斯土壤分类系统中的位置。山的绝对高度达到1200 m，相对高度范围为400至500 m。高原由中生代的砂岩，粉砂岩和页岩组成。气候寒冷，大陆性气候。多年冻土具有连续性。但是，在山区土壤的剖面中，常没有永久冻土，因为其上部表层位于石质土壤剖面的下方。在Arkachan高原的垂直地带，山地冻原带（> 1100 m asl）和山地针叶林带（<1000 m asl ）占主导地位，其特征是锂锌矿（Leptosols），泥炭锂锌矿（Cryic Epirockic Histosols）和泥状锂锌矿（Eutric Histic Skeletic钩藤草）。在山区河流的梯田上，形成了稀薄的斜方冰晶（Turbic低温溶胶）。在斜坡上的积聚区发现了石炭泥炭微珠（Histic Reductaquic低温溶胶），在洪泛区上发育了灰色腐殖质冲积土壤（Skeletic瘦小溶胶）。薄的剖面，豌豆和原始腐殖质的有机层，石质，酸或微酸反应，表土层的碱饱和度低，以及该剖面的形态和理化差异明显，是所有研究土壤的典型特征。这项研究的结果可用于开发研究不多的山区土壤及其特征的数据库。