CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS
|
|
CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS |
RUSSIAN ACADEMY OF SCIENCES |
|
E.F. Vedrova, M.D. Evdokimenko, I.N. Bezkorovainaya, L.V. Mukhortova, Yu.S. Cherednikova Carbon reserves in organic matter of postfire pine forests in southwestern lake Baikal basin // Forest Science (Lesovedenie). 2012. No 1. С.3-13. Changes in the organic matter mass and composition in the phytomass and soil of pine forests under the influence of fires of high and medium intensity are discussed. Fires of medium intensity were shown not to affect drastically the carbon pool in pine forests of the subtaiga forest-steppe and taiga altitudinal complexes in southwestern Lake Baikal basin. In the maturing pine forest, 5 years after the fire of high intensity, the carbon pool remained by 20% lower than that in the unburned forest. The carbon mass in the stand phytomass, as compared to the control variant, decreased by 18%; in the ground cover, it was 63% smaller. In the easily mineralizable fraction of organic matter, the carbon reserves became lower due to burning down of coarse wood residues (by 64%) and root detritus (by 50% relative to the control stand). Phytomass,stand,herb and shrub layer, easily mineralizable and stable soil organic matter, intensity of fire.. |
webmaster |