Two large-scale forest scenario modelling approaches for reporting CO2 removal: a comparison for the Romanian forests

Table 1 The proportions of carbon stock in various biomass compartments, in 2010 and 2060

Model	Simulation year	Merchantable stem^a	Foliage	Other woody compartments^b	Coarse roots^c	Fine roots
CBM	2010	66%	2%	14%	16%	2%
CBM	2060	68%	1%	15%	15%	2%
EFISCEN	2010	70%	3%	9%	16%	2%
EFISCEN	2060	71%	2%	9%	16%	2%

The shares of various components in total carbon stock in the living biomass pool (aggregated for all forest types) estimated based on carbon outputs from the models (percent of total tree biomass):
^aThe “merchantable stem” category was defined in CBM as the stemwood over-bark corresponding to gross merchantable standing wood; in EFISCEN, it was defined as merchantable stem over-bark including tops
^bThe “other woody compartments” category is composed of living branches, tree-tops and above-ground stump (with bark, in CBM). In EFISCEN, the above-ground stumps are included in the coarse roots
^cIn EFISCEN, the “coarse roots” includes the above-ground stump

ISSN: 1750-0680