Entandrophragma excelsum

Entandrophragma excelsum stands, and litter production rate followed a seasonal pattern with lowest values during wet seasons and highest values in dry seasons. The mean annual soil CO2 efflux was 13.5 Mg C ha 1 yr 1 in the Ruhande arboretum and 10.2 Mg C ha 1 yr 1 in Nyungwe forest. The seasonal variation in soil CO2 efflux was strongly influenced by precipitation patterns and soil water content. More