Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia



Advanced Search

Siberian Journal of Forest Science

2017 year, number 2

STOCKS AND FLUXES OF ORGANIC CARBON IN THE ECOSYSTEM OF MATURE BILBERRY PINE FOREST OF THE MIDDLE TAIGA

A. F. Osipov
Institute of Biology, Komi Republic Scientific Centre, Russian Academy of Sciences, Kommunisticheskaya str., 28, Syktyvkar, Komi Republic, 167982 Russian Federation
Keywords: запасы углерода, нетто-продукция, опад, разложение, эмиссия СО, сосняк, carbon stocks, NPP, litter fall, decomposition, CO emission, pine forest

Abstract

The data on carbon stock and its distribution on the main pools in the ecosystem are presented for mature pine forest bilberry type in the middle taiga. The ecosystem of mature pine forest bilberry type concentrates 158.2 t C ha-1. Upper 1 m soil layer contribute 53 %, phytomass - 44, coarse woody debris - 3 % to total carbon stock. Net primary production is determined. Input of stand is 70 %, ground cover - 30 %. It is found active accumulation of wood. It forms about 36 % of biomass production. Litter fall and it distribution on separate fraction are characterized. Litter fall ranged from 1.13 to 1.53 t C ha-1. It is equal 3-5 % of forest floor mass. The tree plants are generating the most part of litter weight. Needless and leaves play the key role in litter of stand. Inactive fraction (branches, cones) are characterized by big inter-annual variation in litter fall production due to changing weather conditions during study period. Dynamic soil temperature is described on lower boundary of forest floor. We estimate that during growing season carbon flux from soil surface is 2.28-3.21 t С ha-1.