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West Africa Drylands Project | Conclusion | Rain Use Efficiency

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To separate rainfed driven vegetation dynamics from other factors in West Africa, the estimate of Net Primary Production was divided with annual rainfall to derive an estimate of Rain Use Efficiency (RUE). Comparing the trends in NPP and RUE then allow disentangling of rainfall and other factors in the vegetation dynamics (i.e. recovery) seen over the last 2 decades in the Sahel. As RUE increases are restricted to 1/3 of the area with NPP increase, it must be concluded that the full potential of the rainfall increase has not been reached.


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West Africa Drylands Project | Conclusion | Rain Use Efficiency

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