1 The Share of Non-Renewable Biomass in Wood Fuel Production & Consumption by Bio-climatic Zones in Nigeria

According to new regulations in CDM and VER projects, only the non-renewable share of total biomass consumption (NRB) can be claimed in energy efficiency projects dealing with bio-energy. With regard to wood energy, the calculation of NRB compares the sustainable yield (the annual increment of woody biomass) with annual demand and losses (e.g. from bush fires) in the project area. In the case of northern states like Kaduna this procedure has to be modified, because the bulk of fuel wood originates from areas outside these states. Productivity of wood fuel depends on the bioclimatic zone. The production is highest in the forest zone, and generally drops from south to north, and is lowest in the Sudan Savannah zone (Short Grass Savanna, Sahel). Map reproduced from Wikipedia “Nigeria”. The term “Woodland and Tall Grass Savanna ” in the legend of the map designates the same bioclimatic vegetation zone as “Guinea Savannah”, used in the following table: 1. Table: Trends in production of fuel wood by ecological regions in Nigeria (‘000m3), FAO 2003, [1]