accordingly clearing a hectare of forest translates into a total loss of tsh per ha per year in terms of direct losses and losses incurred by other sectors which is equivalent to tsh per ha per year in this section we consider the question what is the contribution of the industries modelled in the social accounting matrices to aggregate gdp table presents the contribution to gdp by sector in descending order highlighting the value added by the sectors of forestry and hunting and that of wood paper and printing