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In this paper we provide evidence to show that farmers' perspectives on poverty processes and outcomes are critical in the early stages of evaluating impact of agricultural research on poverty. We summarize lessons learned from farmer impact assessment workshops held in five African locations, co...


Kristjanson, Patricia M.Place, FrankFranzel, StevenThornton, Philip K.[Assessing research impact on poverty: the importance of farmers’ perspectives]Assessing research impact on poverty: the importance of farmers’ perspectives

The Earth’s climate is changing at unprecedented rates, largely due to anthropogenic factors (IPCC 2007). This, together with other drivers such as population increases and increased demand for crop and livestock products, is causing agro-ecosystems to evolve faster than previously expected. Thes...


Herrero, Mario T.Thornton, Philip K.[The role of multi-scale modeling in assessing livelihood adaptation strategies to climate change]The role of multi-scale modeling in assessing livelihood adaptation strategies to climate change

The interest in agricultural soils as global storage of carbon has increased in recent years, along with the prospect of farmers' participation in payment schemes under the Clean Development Mechanism of the Kyoto protocol. Thus, a better understanding of agricultural practices that can increase ...


González Estrada, E.Rodríguez, L.C.Walen, V.K.Naab, J.B.Koo, JawooJones, James W.Herrero, Mario T.Thornton, Philip K.[Carbon sequestration and farm income in West Africa: Identifying best management practices for smallholder agricultural systems in northern Ghana]Carbon sequestration and farm income in West Africa: Identifying best management practices for smallholder agricultural systems in northern Ghana

Sub-Saharan Africa faces huge food supply challenges due to increasing human population, limited opportunities to increase arable land, and declining yields associated with continuously declining soil fertility. To cater for their food requirements, smallholders use only modest levels of inorgani...


Waithaka, M.M.Thornton, Philip K.Shepherd, Keith D.Ndiwa, Nicholas N.[Enhancing sustainable soil fertility management by smallholders: the case of Vihiga, western Kenya]Enhancing sustainable soil fertility management by smallholders: the case of Vihiga, western Kenya

Arable land in western Kenya is under considerable pressure from increasing human population. Rural households depend on farming for at least part of their livelihood, and poverty rates are among the highest in Kenya. Land is often depleted of nutrients, and for most farmers, access to inputs and...


Waithaka, M.M.Thornton, Philip K.Herrero, Mario T.Shepherd, Keith D.[Bio-economic evaluation of farmers’ perceptions of viable farms in western Kenya]Bio-economic evaluation of farmers’ perceptions of viable farms in western Kenya

Despite the fact that many smallholder farming systems in developing countries revolve around the interactions of crop and livestock enterprises, the modelling of these systems using combinations of detailed crop and livestock models is comparatively underdeveloped. A wide variety of separate cro...


Thornton, Philip K.Herrero, Mario T.[Integrated crop-livestock simulation models for scenario analysis and impact assessment]Integrated crop-livestock simulation models for scenario analysis and impact assessment

A dynamic agriucltural land-use model based on a Markov process and governed by a few simple decision rules is described. Currently, the model is purely conceptual, and was designed with one objective: to investigate the possibility of constructing top-down land-use models based on as few process...


Thornton, Philip K.Jones, Peter G.[A conceptual approach to dynamic land-use modelling]A conceptual approach to dynamic land-use modelling

This study assesses, in an indicative way, the impact of fodder banks and forage legume technology in countries of West Africa. The economic surplus method is used to estimate the social rate of return to public investment in research on fodder banks and the distribution of that return amongst pr...


Elbasha, E.Thornton, Philip K.Tarawali, G.[An ex post economic assessment of planted forages in West Africa]An ex post economic assessment of planted forages in West Africa

A la fin des annees 70 et au debut des annees 80, le Centre international pour l'elevage en Afrique (CIPEA) et ses partenaires nationaux de recherche ont joue un role determinant dans l'elaboration et la diffusion du concept meme de culture fourragere comme moyen d'aider les agropasteurs de l'Afr...


Elbasha, E.Thornton, Philip K.Tarawali, G.[Evaluation economique ex-post des cultures fourrageres en Afrique de l'Ouest]Evaluation economique ex-post des cultures fourrageres en Afrique de l'Ouest

Thorne, Peter J.Thornton, Philip K.Kruska, R.L.Reynolds, L.Waddington, S.R.[Maize as food, feed and fertiliser in intensifying crop-livestock systems in East and Southern Africa: an ex ante impact assessment of technology interventions to improve smallholder welfare]Maize as food, feed and fertiliser in intensifying crop-livestock systems in East and Southern Africa: an ex ante impact assessment of technology interventions to improve smallholder welfare

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