Carbon Storage Potential of Trees Outside Forests under Private and Communal Tenure Regimes in Ngiresi Village, Arumeru District, Tanzania

Trees outside Forests (ToF) are described as trees on land not defined as forest and other wooded land. This study was carried out to determine carbon storage potential of Trees outside Forests (ToF) that fall on private and communal tenure regimes in Ngiresi village, Arumeru district, Tanzania. Stratified random sampling was used and the village was stratified into 5 main strata; trees around homesteads, agroforestry, woodlots, natural springs, and trees growing in line plantings (along borders of farm blocks, village roads and Songota river and its tributary known as Maridadi). Trees were measured for diameter at breast height (dbh) and total height for the computation of stand parameters; Number of stems per hectare (N), Basal area per hectare (G), Volume per hectare (V) and Carbon per hectare (C). In addition trees basic densities were obtained through laboratory analysis of the tree cores taken at dbh point. The results show that ToF occupied 56 % of total area of village land (326 ha). About 99 % of ToF land in the study village was part of private tenure regime. Students t-test revealed that ToF under communal tenure regime stored significantly higher amount of carbon (P