About the promotion of natural restoration of Pinus sylvestris L.
N. P. Savinykh, E. V. Lelekova, M. N. Shakleina
Section: Population ecology
The research was carried out in the pine forest of the specially protected natural areas “Medvedsky Bor” in the
Nolinsky District of the Kirov Region. One can meet there both typical boron and boreal plant species and some representatives
of broad-leaved forests and steppes. We researched the composition of vegetation and flora, as well as the
state of Pinus sylvestris L. of the overgrown strip that had been formed after the gradual next-but-one belt logging, with
contribution to renewal (mineralization) and care (clarification-logging with removal of non-target species). Green-moss
and reed vegetation associations prevail there, as it was stated. Vascular plants are analyzed in relation both to humidity
and the spectrum of ecologo-coenotic groups. Predominance of mesophilic and xeromesophilic groups was stated, which
indicates moisture degree sufficient for seed germination of the xeromesophilic P. sylvestris species. Boreal, boron, as
well as non-moral and steppe species prevail, which confirms conservation of biodiversity in these forests. The pine undergrowth
was analyzed as for its number, vitality; vegetation influence on these indicators was stated. It was found out,
per hectare there are 21 thousand young pine plants aged from 4 to16 years. This 84 times exceeds the required number
of trees in the mature community (250 trees per hectare). The vitality of the pine undergrowth is estimated according to
the original method, taking into account the age of the plants, their height, the length of last annual increment and the
mean annual increment, deviation of lateral shoots from the major axis, presence of re-crowning and yellowed leaves. It
is established that there are 17 600 young plants with a high degree of vitality per hectare. It 4.4 times exceeds the plants
number required for artificial restoration of pine forests (4000 trees per hectare). These are the trees which can form pine
forests with a high appraisal index in the future.
Keywords: reforestation, logging, mineralization, undergrowth, real vitality, forest care, biodiversity
Article published in number 4 for 2018 DOI: 10.25750/1995-4301-2018-4-101-106
ISSN 1995-4301
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