Causes, consequences and control of wind
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G. Sterk
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Article
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2003
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John Wiley and Sons
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English
β 178 KB
## Abstract Sahelian Africa is one of the poorest regions of the world, where approximately 90 per cent of the population depends on subsistence agriculture. Due to the high population growth, with annual growth rates of about 3 per cent during recent decades, farmers have expanded their cropping a