Carbon Stocks of Fast Growing Tree Species and Baselines after Forest Fire in East Kalimantan, Indonesia

Abstract

In terms of sink activities in CDM, carbon credit is given to net carbon change in the CDM project site; subtraction of carbon in baseline from the carbon in man-made forest. However, there is little information about carbon accumulation from the view point of CDM. This paper deals with the case studies in both natural young secondary forests and man made forest in East Kalimantan, Indonesia. East Kalimantan has high possibility of CDM activity, because of degraded lands extend widely in 1998. The annual carbon accumulations of pioneer secondary forest in Bukit Soeharto Educational Forest (BSEF) ranged from 1.3 to 2.9 t C/ha/yr in 2000. However, the rate was decreased in 2001 except for Macaranga gigantea dominated stands. These figures were higher than those of regenerated vegetations in degraded land with herbs, shrubs and Imperata cylindrica grassland. On the other hand, annual carbon accumulation of Acacia mangium, Eucalyptus pelitta and Gmelina arborea were 5.9~9.9, 7.1~7.2, and 8.3~12.3 t C/ha/yr respectively. Highly degraded vegetations would be the target site for CDM projects. Naturally regenerated forest are not suitable for CDM project because of their high baseline.