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The Structure of Phenological Forms of the Young Generation Spruce he Leningrad Region

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A.V. Gryazkin, N.V. Belyaeva

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Annotation

The paper presents the results of the structure study of spruce undergrowth phenological forms under the canopy of stands in the Leningrad Region. Under the canopy there  dominates an early-shooting phenological form of spruce undergrowth. Its share is decreasing as the relative density of the stand is increasing. Due to the prevalence of the early-shooting form under the canopy of the Oxalis piceetum forest type, mainly even, gradual cuttings can be chosen here. This type of cutting will hasten the emergence and preservation of the early-shooting phenological form of spruce. Clear-cutting will kill the spruce undergrowth, as in the Leningrad Region the early-shooting form of spruce undergrowth is very likely to suffer from the late spring frost.

Authors

A.V. Gryazkin, N.V. Belyaeva
St. Petersburg State Forest Technical University named affer S.M. Kirov

Authors job

St. Petersburg State Forest Technical University named affer S.M. Kirov

Keywords

Key words: forest phytocenosis, natural forest regeneration, spruce undergrowth, phenological forms of undergrowth, undergrowth structure by condition and height.

The Structure of Phenological Forms of the Young Generation Spruce he Leningrad Region

 

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