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Indigenous soil and water conservation techniques in smallholder farms in Africa.

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Date
2007
Author
Danga, B. O.
Ben-Hur, M.
Wakindiki, I.I.C.
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Abstract
Runoff and soil erosion are responsible for about 83% of the land degradation worldwide. Many smallholder farmers in arid and semi-arid areas of Africa often use inexpensive indigenous soil and water conservation (ISWC) techniques to control runoff and erosion. This paper is a review of the ISWC methods and categorizes them into three: those suitable for semi-arid areas, those suitable for wet areas and those suitable for both semi-arid and wet areas. The usefulness of ISWC is generally appreciated but literature on the subject is scarce. A case study that investigated effects of 2-m spaced trash lines on runoff, erosion and crop yield in a cowpea – maize rotation is presented. Trash lines reduced runoff and soil loss and increased crop biomass yield three-fold. We conclude that ISWC like close-spaced trash lines are beneficial soil and water conservation methods and should be incorporated in future land resource conservation programmes
URI
http://ir-library.ku.ac.ke/handle/123456789/9841
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  • RP-Department of Agricultural Resources Management (ARM) [57]

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