Burning of fossil fuels and land - use change, particularly deforestation, have resulted in a steady accumulation of CO 2 and other greenhouse gases in the atmosphere, which is the cause of global warming (IPCC, 2003) . The two major strategies to mitigate the potential negative effects of climate chang e are reducing the emission of greenhouse gases and the capture and storage of CO 2 from the atmosphere. Through the framework of the Clean Development Mechanism (CDM) under the Kyoto protocol, increasing terrestrial sinks through afforestation and reforest ation are the two accredited activities. Besides afforestation and reforestation, reducing Emissions from Deforestation and Forest Degradation (REDD) and enhancing carbon stocks thought sustainable land management (REDD+) are given due credit in mitigating climate change (Campbell, 2009) .