Age Dynamics of Gray Alder Biomass in the Stands of the Arkhangelsk Region
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2024, Vol 2, Issue 2
Abstract
The assessment of forest productivity in forestry and forest ecology has a long tradition, but in recent decades there has been a paradigm shift: the target function of forestry, consisting in wood cultivation, has shifted towards the biosphere-stabilizing function and the assessment of biomass and carbon sequestration capacity of forests. Equations and tables for assessing biomass at the stand level have an advantage as they can be used to characterize both the biomass of individual stands and their totality, as well as (when combined with the state forest inventory data) the situations in the forests throughout the country. The complexity of the work on assessing biomass of trees and stands has prompted researchers to use the existing tables of growth progress when compiling the tables of biological productivity of the stands using the recursive method. For the conditions of the northern and middle taiga of the Arkhangelsk Region, there are no tables of growth progress for gray alder biomass. The aim of this research is to study the growth progress of gray alder biomass in the stands of the Arkhangelsk Region. A series of sample plots has been laid to assess the above-ground biomass of the trees of this species. Based on the actual data from 50 model trees from 30 sample plots, the allometric models of the dependence of biomass fractions on the stem volume have been developed. The obtained models have been combined with the tables of growth progress for gray alder by quality class and the table of biological productivity of the species for the conditions of the Arkhangelsk Region has been drawn up. The results have been compared with the data on the biological productivity of gray alder in Belarus, Lithuania and Latvia. It has been shown that the biomass of the mature stands of gray alder of the 1st and 2nd quality classes in the Arkhangelsk Region is 3â9 % less than in Belarus and Lithuania. For the stands of the third and fourth classes, this difference increases to 29â48 %. Such differences in the biomasses of the compared regions can be explained by different zonal site conditions.
Authors and Affiliations
Аleksey А. Karaban, Vladimir А. Usol’tsev, Sergey V. Tret’yakov, Sergey V. Koptev, Аndrey А. Paramonov, Il’ya V. Tsvetkov
Keywords
Related Articles
- EP ID EP734367
- DOI 10.37482/0536-1036-2024-2-65-75
- Views 71
- Downloads 0
Improving the Stability of Wood-Cutting Saws by Thermoplastic Action on the Distribution of Residual Stresses in the Blade
The saw stability in operation defines the ability of the saw blade to resist the forces acting on it in the plane of greatest rigidity. The saw can work reliably only in case of maintaining stable balance, which is achi...
A Modified Methodology for Calculating Regional Forest Fire Hazard Scales
Weather conditions are one of the most important factors affecting forest fire hazard. In Russia, it is the indices characterizing the fire hazard in forests depending on weather conditions that are traditionally used to...
Growth of Schrenk’s Spruce (Picea schrenkiana) Seedlings Related to the Pre-Sowing Stimulating Seed Treatment
The uniqueness of the biological properties and the occurrence in nature of the Schrenk’s Spruce (Picea schrenkiana Fisch. & C.A. Mey.), its great forestry significance, and important eco-stabilizing functions of its sta...
Modeling the Production Processes of Wood-Fiber Semi-Finished Products Aimed at Expansion of the Raw Material Base of Forest Enterprises
Currently, materials made of wood-fiber semi-finished products are widely used in house building as structural, finishing and insulating materials. According to the results analysis of numerous studies, the raw material...
The State of Forests Growing on Iron Oxide-Saturated Soils of Azerbaijan
Today Azerbaijan focuses on the non-oil sector development. The mining industry is actively growing, to become one of its driving forces. This is detrimental to the ecology of the region. The intensive mining activity ha...