Carbon deposition by oak forests and willow communities

Abstract

The peculiarities of carbon deposition in stands of oak quiver (Quercus robur L.), as well as in communities of shrub and tree life forms (Salix cinerea L., S. triandra L., S. viminalis L., S. purpurea L., S. fragilis L., S. alba L.). In the oak groves, the largest deposition of carbon is recorded in the fresh pine forest of Shipov, a forest of a late-blossoming species of oak tree, of natural origin at the age of 181 - 386.3 tons·ha-1. In forest oak cultures, the total mass of carbon concentrated in the tree stage has increased from 15.28 to 121.70 tons·ha-1 over the period from 19 to 76 years. High biological productivity of willow communities promotes effective performance of carbon-depositing function. The maximum amount of deposited carbon (31.7 tons·ha-1 for a 5-year life span) is noted in the communities of S. viminalis of sprouts originating in the shrub biomorph. Of all the studied biological species, the maximum phytomass increment is greatest, and accordingly the largest amount of carbon in the growth (5.62 tons·ha-1 year-1) occurs in S. viminalis when it grows in shrubby form.