About two-thirds of Africans depend on agriculture for their livelihoods. The fate of agricultural production, therefore, directly affects economic growth, social improvement, and trade in Africa. As the region's population continues to grow rapidly, outpacing the growth rate in other regions of the world, its agriculturalland is becoming increasingly degraded. Farmers are intensifying land use to meet food needs without proper management practices and external inputs.

Low agricultural productivity, land degradation and poverty are severe interrelated problems in the East African highlands. While the proximate causes of such problems are relatively well known, the underlying causes are many and complex, and depend upon many site-specific factors that vary greatly across the diverse circumstances of the region. In this paper, we argue that the appropriate strategy for sustainable development depends greatly upon the “pathways of development” that are feasible in a given location.

La dégradation des ressources naturelles est devenue un problème mondial qui menace les moyens d’existence de millions de pauvres. De nombreuses technologies très prometteuses sont actuellement disponibles, notamment en matière de gestion des ressources naturelles, mais les exploitants agricoles et les autres intervenants hésitent souvent à les employer. Pourquoi? Bien que de nombreux facteurs puissent l’expliquer, l’absence de droits de propriété garantis et l’insuffisance d’actions collectives devrait retenir l’attention des décideurs et des développeurs
de technologie.