Allometric Equations and Biomass Amount of Representative Tunisian Arid Land Shrubs for Estimating Baseline

As one of the methods to sequester green house gases (GHG), arid land afforestation had been proposed, and some trial experiments have been carried out in Western Australia. The authors attempted to apply this type of afforestation method to Tunisian arid and semi-arid area, and then conventional land-use types and vegetations were investigated. To estimate carbon credit from sequestered carbon amount by planted trees, “Actual net GHG removals by sinks”, “Baseline net GHG removals by sinks” and “Leakage” in five carbon pools must be estimated with objective method. As a first step to estimate “Baseline net GHG removals by sinks”, allometric equations and biomass amount of representative perennial vegetation in Tunisian arid and semi-arid land were estimated in this study. In future analysis, by repeated tree census and using reported literature data, we will be able to obtain accurate baseline data.