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首页> 外文期刊>Biology Bulletin >The Role of Microsites in the Natural Regeneration of Trees in Boreal Tall-Herb Dark Coniferous Forests of the Northern Urals
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The Role of Microsites in the Natural Regeneration of Trees in Boreal Tall-Herb Dark Coniferous Forests of the Northern Urals

机译：微料在北部乌拉尔北部北方古草黑色针叶林自然再生中的作用

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摘要

This paper presents the results of research into the role of various types of microsites (flat under- and intercrown areas, stumps, fallen logs, mounds, and pits) in the natural regeneration of trees in uneven-aged dark coniferous boreal tall-herb spruce-fir forests of the northern Urals. Areas of microsites of various types have been identified; a general description of natural tree regeneration is provided; the association of undergrowth of various tree species with different microsites was determined; and the undergrowth distribution by ontogenetic states has been assessed. The lowest undergrowth density was registered on flat sites occupying the major part of the community area, while the highest density was detected on elevated microsites (fallen logs, stumps, and mounds) the total area of which is pretty small. The highest density of the undergrowth of all species was observed on stumps. On mounds and fallen logs, it was 4.3 and 3.0 times lower, respectively. It is shown that elevated microsites (stumps, fallen logs, and mounds) are required for successful survival of the undergrowth of various tree species in boreal tall-herb forests.
机译：本文介绍了各种类型的微量资源（平坦和互信区域，树桩，倒下的原木，土墩和坑）在不均匀的黑暗针叶巨头北方草本植物云杉的自然再生中的作用 - 北部乌拉尔的森林。已经确定了各种类型的微量区域;提供了天然树再生的一般描述;确定各种树种与不同微量的植物的结合的关联;并评估了Ontogency州的灌木丛分布。在占领社区区域的主要部分的扁平部位上注册了最低的底层密度，而在升高的微量上检测到最高密度（下降的原木，树桩和土着），其总面积相当小。在树桩上观察到所有物种的毛细管的最高密度。在土墩和堕落的日志上，分别为4.3和3.0倍。结果表明，在北方的高草林中的各种树种的灌木丛中成功存活需要升高的微量资源（树桩，下降的原木和土着）。

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  • 来源
    《Biology Bulletin》 |2019年第2期|200-209|共10页
  • 作者

    Efimenko A. S.; Aleinikov A. A.;

  • 作者单位

    Russian Acad Sci Ctr Forest Ecol & Prod Moscow 117997 Russia;

    Russian Acad Sci Ctr Forest Ecol & Prod Moscow 117997 Russia;

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