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Water in drylands - Adapting to scarcity through integrated management
… drought is a measure of a period of dryness below a pre-determined long- term average, such as (for example) 50% below the mean for a 6 month period. Drought is determined differently according to the location, for example … there are very few studies on “boulis” and their contribution to well- being, particularly local livelihoods. …