Issue №2, Vol. 23
Grigoreva O., Rawan G., Panarin A., Fedorov V., Grigorev I., Nikolaeva F. Dynamics of biological productivity of living ground cover in phytocenoses affected by logging // Resources and Technology. 2026. №2, Vol. 23. P. 99‒122.
DOI: 10.15393/j2.art.2026.9223
Dynamics of biological productivity of living ground cover in phytocenoses affected by logging
| Grigoreva Olga | St. Petersburg State Forestry Engineering University named after S.M. Kirov, grigoreva_o@list.ru |
| Rawan Genblatt | St. Petersburg State Forestry Engineering University named after S.M. Kirov, rawan.genblatt@mail.ru |
| Panarin Artem | St. Petersburg State Forestry Engineering University named after S.M. Kirov, artempanarin048@gmail.com |
| Fedorov Valery | Arctic State Agrotechnological University, vfedorov_09@mail.ru |
| Grigorev Igor | Arctic State Agrotechnological University, silver73@inbox.ru |
| Nikolaeva Fevronya | Arctic State Agrotechnological University, yad250673@mail.ru |
|
Key words: living ground cover; care felling; phytomass of the grass and shrub layer; phytomass of moss cover; natural renewal |
Summary: This scientific article focuses on the study of the dynamics of living ground cover in phytocenoses after logging and complex care, that is, logging and fertilization. When doing the research on experimental sites, a reconnaissance description of the tree layer was performed and the species composition of the grass-shrub and moss layers was revealed. At each site, the number of shoots of each type of grass and the projected coverage of the area with herbs were determined on a ten-point scale. The percentage of projective coverage was determined for each type of moss. The abundance and extent of the distribution of grass and moss species were determined on a five-point scale. The description of grass-shrubby, moss covers and self-seeding of woody plants in the canopy of these tiers was performed on permanent accounting sites measuring 1m x 1m. It is known that as the stand is thinned by logging and the illumination increases, the biomass of the living ground cover begins to increase. As a result of reconnaissance surveys and taking into account the species composition and degree of distribution of grass-shrub and moss layers as indicators of soil conditions, as well as the tree layer consisting of spruce, pine, birch, aspen and willow, two plant associations were identified in this community: wood sorrel spruce forest and sour-blueberry spruce forest. It has been established that a change in the light regime has a positive effect on the distribution of species over an area and the accumulation of phytomass in their underground and aboveground parts. It is shown that with the thinning of the tree canopy, the biological activity of woody plants increases. In particular, seed production and natural regeneration of woody plants are enhanced. It was also found that the phytomass of mosses decreases depending on the intensity of logging. |
Displays: 41; Downloads: 32;
© 2011 - 2026
Petrozavodsk State University
technical support - RCNIT.
Photo - I. Georgievsky.
Chief editor - Dr. Sergey Vasilyev, rt@petrsu.ru