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首页> 外文期刊>Ботанический журнал >Influence of Picea obovata and Pinus sylvestris trees on the lower layer primary productivity in coniferous forests of the Kola Peninsula
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Influence of Picea obovata and Pinus sylvestris trees on the lower layer primary productivity in coniferous forests of the Kola Peninsula

机译：Picea Obovata和Pinus Sylvestris树木对康拉半岛针叶林下初级生产率的影响

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摘要

The influence of spruce (Picea obovata) and pine (Pinus sylvestris) trees on primary productivity of the lower layer in the light of concept of north-taiga nutrition status in coniferous forests in Kola Peninsula, Russia is considered. Particular emphasis is placed upon necessity of investigation of tree impact on lower layer plants depending on their nutritional strategy. It is shown that effect of spruce and pine trees on the lower layer has special features. In the pine forests, primary productivity and diversity of plants with atmospheric nutritional strategy (lichens and mosses) are highest below the crowns where additional input of nutrients with stem and crown waters is observed. A decline in productivity of green mosses, especially Hylocomium splendens, below the spruce crowns is explained by low extent of lighting and by aggressive character of stem and crown waters. A decrease in productivity of plants with soil strategy of nutrition (dwarf shrubs) in zones of crown edges and crown overlap is connected with increase of exchangeable aluminium concentration in the soil and increase of a competition with trees for nutrients.
机译：考虑了俄罗斯在Kola半岛针叶林的概念下，云杉（PICEA OBOVATA）和松（PINUS SYLVESTRIS）树木对下层初级生产力的影响。根据其营养策略，特别强调对降低层植物的树木撞击的必要性。结果表明，云杉和松树在下层的影响具有特殊功能。在松树林中，大气营养策略（地衣和苔藓）的初级生产力和植物的多样性在冠上最高，其中观察到具有茎和冠水的营养素的额外输入。通过低程度的照明和茎和冠水的侵蚀性，解释了云杉冠下的绿色藓磁带，特别是Hylcomium的生产率的下降。在冠边缘区域的营养土壤策略（Dwarf灌木）的植物生产率降低，并在土壤中的可更换铝浓度的增加和营养成分的竞争增加。

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