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首页> 外文期刊>Biology Bulletin >Climatic Signals in Tree Ring Anatomical Structure of Larix gmelinii Growing under Contrasting Hydrothermal Conditions within the Forest-Tundra Ecotone
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Climatic Signals in Tree Ring Anatomical Structure of Larix gmelinii Growing under Contrasting Hydrothermal Conditions within the Forest-Tundra Ecotone

机译：森林-Tundra交错带内相反水热条件下兴安落叶松生长年轮解剖结构中的气候信号

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摘要

The results of comparative analysis of tree-ring anatomical structure in the trunk of Larix gmelinii (Rupr.) Rupr. growing in the forest-tundra ecotone in the north of Middle Siberia in contrasting hydrothermal conditions of permafrost soils are discussed. It is found that the best soil hydrothermal conditions affected the formation of relatively large tracheids in earlywood and latewood during the whole period investigated. Current climate warming has caused a positive trend in annual changes in the cellular characteristics in trees growing in relatively favorable soil conditions and has not caused observable changes in trees growing in adverse conditions. The wood anatomy structure of the water-conducting (earlywood) zone in the tree ring in favorable conditions is determined by the weather of late May and June, and in adverse conditions it is determined by the weather in late April and May.
机译：落叶松（Larix gmelinii）树干的树轮解剖结构比较分析结果。讨论了在永冻土的热液条件下，在中西伯利亚北部森林-苔原交错带生长的植物。研究发现，最佳的土壤热液条件在整个调查期间影响早材和晚材中较大的管胞的形成。当前的气候变暖已经使在相对有利的土壤条件下生长的树木的细胞特性的年度变化呈现出积极的趋势，并且并未导致在不利条件下生长的树木的可观察到的变化。树环中处于导水状（早木）区的木材解剖结构在有利条件下取决于5月下旬和6月的天气，在不利条件下则取决于4月下旬和5月的天气。

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  • 来源
    《Biology Bulletin》 |2017年第6期|634-642|共9页
  • 作者

    Fakhrutdinova V. V.; Benkova V. E.; Shashkin A. V.;

  • 作者单位

    Russian Acad Sci, Sukachev Inst Forest, West Siberian Branch,Siberian Branch, Dept Fed Res Ctr,Krasnoyarsk Sci Ctr, Novosibirsk 630082, Russia;

    Russian Acad Sci, Sukachev Inst Forest, Krasnoyarsk Sci Ctr, Siberian Branch,Fed Res Ctr, Krasnoyarsk 660036, Russia;

    Russian Acad Sci, Sukachev Inst Forest, Krasnoyarsk Sci Ctr, Siberian Branch,Fed Res Ctr, Krasnoyarsk 660036, Russia;

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