تصفح Social & Economic Survey Research Institute حسب الموضوع "re-greening"
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Evolution of Surface Hydrology in the Sahelo-Sudanian Strip: An Updated Review
( MDPI , 2017 , Article)In the West African Sahel, two paradoxical hydrological behaviors have occurred during the last five decades. The first paradox was observed during the 1968–1990s ‘Great Drought’ period, during which runoff significantly ...