Abstract. Carbon sequestration potentials of 8 woody species were assessed on an ecosystem level, using the CO 2 FIXV.2 model, for two scenarios. for the complete and partial cuts respectively), while Cola lepidota had the least under both scenarios. There were higher carbon stocks in plant biomass than soil for all agroforests under both management regimes. Fine litter had the highest soil carbon fraction and soluble compounds had the least in all the agroforests. Under complete rotation, the agroforests had potential carbon credit values ranging from US$2756 to $3264/ha/rotation, and $ 3114 to $3678/ha/rotation with partial cut. Partial cuts allowed for higher rates of carbon accumulation, and the farmer always has a standing crop. Economic prioritization showed that Irvingia wombulu was the best (US$6.67/Kg), followed by Ricinodendron heudelotii and Afrostyrax lepidophyllus ($5.55/Kg) and the least was Trycocypha abut ($0.33/Kg). These results would aid policy makers in mitigating climate change, improving rural livelihoods, and contributing to sustainable development.

This study was carried out in the Mount Cameroon region to evaluate the effects of green manure and fertilizer on the growth and yield of maize. There were eight treatments: Calliandra prunings, Calliandra prunings + fertilizer (60kg/ha NPK), Gliricidia prunings, Gliricidia prunings + fertilizer, Senna prunings, Senna prunings + fertilizer, fertilizer only (120 kg/ha NPK) and control. Results showed that biomass of prunings in the first pruning was highest in Calliandra (5314kg/ha) and this was significantly different from those of Senna (2909kg/ha) and Gliricidia (2112kg/ha). Nitrogen input from the prunings was highly significant (P<0.05) in Calliandra prunings (217 kgN/ha) and least in Gliricidia species (69.0kgN/ha). Maize grain yield in the different treatments was not significantly different in the first and second planting seasons. The highest grain yield during the third cropping season was observed in Calliandra + fertilizer (4696kg/ha) and least in control (3332kg/ha). It was also noted that nitrogen uptake was highest in plots supplied with fertilizer only and lowest in control. Weed biomass was highest in control and in plots supplied with fertilizer only. Soil chemical changes after three cropping periods showed variable changes in treatments. There was decrease in bulk density in plots supplied with Calliandra prunings.

A study was carried out to evaluate the distribution, abundance and diversity of Non-Timber Forest Products (NTFPs) in the Southern Bakundu Forest Reserve at the northern (Diffa), western (Bai Manya) and eastern (Mbalangi) parts of the reserve. NTFPs can be used as source of food, medicine, fuel wood and other socio-economic and cultural uses. Six belt-transects were use at each site to assess the distribution, abundance and diversity of NTFPs in this Forest Reserve. The southern part of the reserve was not evaluated as it was heavily encroached with cocoa plantations. A total of 50 species in 40 genera and 27 families were identified. 28 species were most commonly distributed in the three sites. These include Irvingia gabonensis, Trichoscypha abut and Cola lepidota, while Garcinia cola, Baillonella toxisperma and Tetracarpidium conophorum, Raphia species and Afromomum citratum were restricted to one or two sites. The northern part of the forest had the highest number of useful plants (3119), followed by the eastern part (837)

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