Carbon reserves in woody plants of birch-spruce young stock of post-harvest origin of the middle taiga of the Komi Republic
The dynamics of phytomass and carbon reserves in woody plants of birch-spruce young forest of post-harvest origin in the middle taiga of the Komi Republic is considered. Data on the carbon concentration in various species and parts of woody plants are presented. It is shown that the carbon concentration in woody plants of young forest, depending on the species and part of the plant, varies from 45,3 ± 1,2 to 50,1 ± 1,6 % of absolutely dry matter. The total carbon reserves in the stand, underwood and undergrowth of birch-spruce young have increased from 17 to 23 t/ha over 10 years, while carbon reserves in the stand increase by 2 times, decrease by 1,6 times in the adolescent, decrease by 1,8 times in the undergrowth. The leading role in the accumulation of carbon in the stand and underwood to birch and spruce, in the undergrowth - rowan and willow. It is shown that as a stand is formed, its contribution to carbon accumulation by woody vegetation increases, underwood and undergrowth decrease. The share of the forest stand in the accumulation of the total carbon stock by woody plants of birch-spruce young forest increases from 50 to 78 % in 10 years, decreases from 26 to 13 in the underwood, decreases from 24 to 9 % in the undergrowth. Analysis of the dynamics of carbon stocks over 10 years in woody plants of birch-spruce young forest showed that changes in its distribution by phytomass components are not pronounced. The data obtained on carbon stocks in woody plants can be used to assess the carbon cycle in deciduous young forest of post-harvest origin.