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Inst. of Plant Production in the Tropics and Substropics
Inst. of Plant Nutrion, Univ. of Hohenheim, DW-7000 Stuttgart 70, Germany
International Agricultural Programs, Univ. of Arkansas, Fayetteville, AR 72701
* Corresponding author.
Deforestation, overgrazing, and declining soil regeneration periods have resulted in increased wind erosion problems in dry areas of the West African Sahel, but little is known about the bio-physical factors involved. This research was conducted to determine the effects of ridging and four different windbreak spacings on wind erosion, potential evaporation, and soil water reserves. A field trial was conducted from 1985 to 1987 on 12 ha of a Psammentic Paleustalf in Southern Niger. Millet, Pennisetum glaucum (L.), and cowpea, Vigna unguiculata (L.) Walp., were seeded in strips on flat and ridged soil. Windbreaks of savannah vegetation were spaced at 6, 20, 40, and 90 m. The effects of ridging on wind speed, evaporation, and wind erosion were small and mostly non-significant. However, average wind
Received for publication November 15, 1990.
This article has been cited by other articles:
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C. L. Bielders, K. Michels, and J.-L. Rajot On-Farm Evaluation of Ridging and Residue Management Practices to Reduce Wind Erosion in Niger Soil Sci. Soc. Am. J., September 1, 2000; 64(5): 1776 - 1785. [Abstract] [Full Text] |
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