Factors influencing scaling up of agroforestry based spatial land use integration for soil fertility management in Arsamma Watershed, Southwestern Ethiopian Highlands
This study was set to examine factors influencing agroforestry upscaling, inter plot natural fertilizer transfer and inter plot income flow in Arsamma watershed. A semi structured questionnaire was used to gather necessary information. Contingency table, chi square, Phi and Cramer's V were used to analyze the data. Access to seedlings was the most important determinant of agroforestry upscaling; and farmers' production orientation, farm size and wealth status ranked, respectively, second, third and fourth. Inter plot natural fertilizer transfer was primarily influenced by participation in agricultural extension. Wealth status and livestock size ranked, respectively, second and third in influencing inter plot natural fertilizer transfer. The study indicated a geographic concept of spatial land use integration for soil fertility management and key factors influencing agroforestry based land use integration. Agroforestry centered diversified small scale agricultural commercialization, tree crop livestock integration, agricultural extension services promotion and multi purpose tree species supply are the way out to upscale agroforestry and agroforestry based spatial land use integration.