• To improve understanding of the farming system practices in the evergreen forest of Cameroon in order to identify problems, constraints and opportunities related to forest conservation and agricultural production.
• To obtain that on aspects of soil degradation under various land uses in the evergreen forest of Cameroon to assess the contribution of shifting cultivation to soil degradation.
• To find trends and relationships between field expansion, crop yield, fallow and soil degradation on the one hand and socio-economic factors such as population pressure, infrastructure development, area under cultivation etc…
• To propose solutions to farmers' production problems and constraints in order to reduce destruction to the forest.

Farming systems: the main farming system (shifting cultivation) has been described in detail, as has been the soil degradation under these farming systems.

Hydrology: Changes in hydrology and soil due to agricultural practices are described. Relations between the farming system, its constraints, its development etc have been related to socio-economic conditions. Solutions have been proposed.

• Nounamo, L. and Yemefack, M. (2000). Shifting cultivation in the evergreen forest of southern Cameroon: Farming systems and soil degradation. Tropenbos-Cameroon Reports 00-2.
• Nounamo, L. and Yemefack, M. (2001). Farming systems in the evergreen moist forest in Southern Cameroon. Tropenbos-Cameroon Documents 8.
• Nounamo, L. and Yemefack, M. (2002). Shifting cultivation and soil degradation. Tropenbos International Newsletter 27:7
• Waterloo, M.J., Ntonga, J.C., Dolman, A.J. and Ayangma, A.B. (2000). Impact of shifting cultivation and selective logging on the hydrology and erosion of rain forest land in South Cameroon. Tropenbos-Cameroon Documents 3.