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Agricultural development projects in the fertile and most well watered areas of arid and semi arid Africa usually deny access to nomadic pastoralists whose production system and livelihood depend upon such areas in the dry season and during frequent droughts. The result can be degradation of range resources through overgrazing, and greater vulnerability of pastoralists.
Recent calls for "compatible" land use schemes or "non exclusionary" agricultural development projects in the context of pastoralist transhumance, suggest allowing pastoralists structured access to project sites in the dry season in order to utilize forage and water supplies. This paper examines the capacity of an irrigation scheme to support the seasonal influx of transhumant livestock in dry seasons of varying severity. The livestock carrying capacity of the existing mosaic of land use patterns and practices is used in the determination of the proportional areas of land use needed to absorb large seasonal concentrations of livestock.

Document Id
Unruh JD (1990) Integration of transhumant pastoralism and irrigated agriculture in semi-arid East Africa. Human Ecology 18: 223-246
Publication date
January 1990