Financial analysis of the relationship between the monetary value of softwood plantation timber   and mid-log diameter as a basis for timber pricing at SUA Training Forest, Olmotonyi, Arusha, Tanzania. Research carried out in partial fulfilment of the requirements for B.Sc. (For.) Degree at Sokoine University of Agriculture (1985).

Socio-economic analysis of forest plantations: A case study of Meru Forest Project, Arusha, Tanzania. Research carried out in partial fulfilment of the requirements for M.Sc. (For.) Degree at Sokoine University of Agriculture (1989).

Tropical rainforest deforestation, biodiversity benefits and sustainable landuse: Analysis of economic and ecological aspects related to the Nguru Mountains, Tanzania. Research carried out in partial fulfilment of the requirements for PhD Degree at the Agricultural University of Norway (1996).

Analysis of sustainable forestry sector development in Tanzania. Project sponsored by the Norwegian agency for international development cooperation (NORAD). Phase 1, 1989 - 1992; Phase 2, 1993 - July 1997.

Impact of some macro-economic policies and other interventions on household livelihood strategies in the miombo region: a case study of Tanzania. Project sponsored by the centre for international forestry research (CIFOR), Bogor, Indonesia (1996 - 1997).

Sustainable land use practices. Project sponsored by USAID through Sokoine University of Agriculture (SUA) - Tuskegee University (TU) Linkage Project (1996-2001).

Management of Miombo woodlands. Project sponsored by the European Union (EU) and contracted to the centre for international forestry research (CIFOR), Bogor, Indonesia (1998 - 2002). 

Contribution of the forestry sector to the Gross Domestic Product (GDP) in Tanzania. Project sponsored by the Norwegian Agency for International Development Cooperation (NORAD) through the SUA-NORAD frame agreement (1997 - 2000).

Charcoal potential in Southern Africa (CHAPOSA). Project funded by European Union through the Stockholm Environmental Institute. 1999 – 2002.