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首页> 外文期刊>Ботанический журнал >The differentiation of the vegetational cover in Amguema river basin (Chukotka).
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The differentiation of the vegetational cover in Amguema river basin (Chukotka).

机译：Amguema River盆地（Chukotka）中植被覆盖的差异化。

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摘要

The vegetation cover of Amguema River basin, Russian Far East, could be differentiated into the western (continental) and eastern (oceanic) types, with an intermediate strip between them. The plant species and vegetation types which occur in each area are described. Seven species with tree life form occur in the continental vegetation; some of these occur as shrubs in the oceanic area. Some trees form forests (Chosenia arbutifolia) or forest-like vegetation (Salix boganidensis), while Alnus fruticosa, the indicator of southern tundra vegetation in Asia, forms thickets. Steppe-like vegetation is present. Thick moss cover and low bush thickets are widespread and occupy the most favourable habitats, which results in impoverished local flora. The oceanic vegetation is characterized by Salix thickets along rivers and lakes, and thin vegetation cover elsewhere. There is a great variety of spotty, polygonal, solifluctional and other tundras as a result of frost boils. The meadow complexes and neutrophilous, species-rich complexes are widely distributed. The mountain vegetation develops in the depression of landscape, whereas in continental regions these places are covered by the typical tundras (heath-moss); the steppe-like vegetation and the majorityof species which occur in this vegetation are absent. The intermediate strip is characterized by the dominance of the oceanic vegetation cover type with the isles of continental vegetational complexes which have a west-east gradient of complexity. This reflects the retreat of southern tundra zone to more continental conditions.
机译：俄罗斯远东Amguema河流域的植被覆盖物可以区分成西部（大陆）和东部（海洋）类型，它们之间有中间条带。描述了在每个区域中发生的植物物种和植被类型。大陆植被中出现七种树木生命形式;其中一些发生在海洋区域的灌木。一些树木形式森林（Cheryia Arbutifolia）或森林植被（Salix Boganidensis），而Alnus Fruticosa是亚洲南部南部南部植物植被的指标，形成灌木丛。类似草原的植被存在。厚厚的苔藓封面和低灌木丛是普遍的，占据最有利的栖息地，导致贫困的本地植物群。海洋植被的特点是沿着河流和湖泊的盐灌木，以及其他地方的薄植被覆盖。由于霜冻沸腾，有各种各样的色素，多边形，溶弹性和其他苔藓。富含草地复合物和中性的物种，种类的富含复合物被广泛分布。山地植被在景观的萧条中发展，而在大陆地区，这些地方被典型的苔藓（荒地）覆盖;缺乏干草状的植被和发生在这种植被中的大部分物种。中间条的特征在于海洋植被覆盖型与欧洲植被复合物的群体的优势，具有西部复杂性的复杂性。这反映了南苔原区的撤退到更多的大陆条件。

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