Environmental and economic impacts of soil erosion and fertility mining in northern Tanzania

This paper develops a soil conservation model that is relevant to smallholder farmers who apply little or no fertilizer. Empirical results drawn from northern Tanzania imply that, ignoring fertility mining problem in model specification leads to overestimation of profits for farms that apply little...

Descripción completa

Detalles Bibliográficos
Autores principales: Nkonya, Ephraim M., Barkley, Andrew P., Hamilton, Stephen F., Bernardo, Daniel J.
Formato: Conference Paper
Lenguaje:Inglés
Publicado: Agricultural and Applied Economics Association 1999
Materias:
Acceso en línea:https://hdl.handle.net/10568/159259
Descripción
Sumario:This paper develops a soil conservation model that is relevant to smallholder farmers who apply little or no fertilizer. Empirical results drawn from northern Tanzania imply that, ignoring fertility mining problem in model specification leads to overestimation of profits for farms that apply little or no fertilizer. The model also shows that, the impact of output price on soil conservation efforts depends on the curvature of the soil erosion function.