Department of Geography, Faculty of Social Science, University of Lagos, Lagos, Nigeria



Forests play an important role in removing carbon from the atmosphere and help slow climate change by sequestering carbon dioxide and store as carbon while fire, disease, vegetation conversion such as land use change releases carbon dioxide into the atmosphere. In this study, InVEST model was adopted using Geographic Information System (GIS) to estimate Carbon stored, sequestrated and design a REDD policy for Nigeria between 1984 and 2035. Total carbon sequestrated decrease from 4,856,430,592Mgha-1yr-1 in 1984 to 2,018,537,728Mgha-1yr-1 in 2003 and then, to 826,727.99Mgha-1yr-1 in 2035. Also, total carbon stored decrease by 15,594,440,704Mgha-1yr-1 in 1984  to 11,968,108,544 Mgha-1yr-1 in 2003 and then, to 11,115,581,440Mgha-1yr-1 in 2035. While, total carbon emitted increased from 887,287,616Mgha-1yr-1 in 1984 to 1,599,485,568Mgha-1yr-1 in 2003 and then, to 1,766,186,368Mgha-1yr-1 in 2035. Based on these, a REDD policy initiatives was adopted to improve carbon storage by sequestrating 4,619.97Mgha-1yr-1  and  912.85 Mg ha-1yr-1 in 2003 and 2035 while storing 4,619.97Mgha-1yr-1 and 4,679.19Mgha-1yr-1. To achieve this, a REDD policy scenario was created under the confidence area (at 90%) to increase carbon sequestration by 38% for2003 and 21% for 2035 which in-turn improves the economic benefit gained by $699,241.75 in 2035 compared to $406,799.63 in 2003. These plans acknowledged the importance of forests in addressing climate change and potential boon REDD represents under the Business-As-Usual (BAU) scenario.