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There are 2, 164 content items of different types and languages related to parcours on the Land Portal.

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Rainfall and Rainfall Variability

Journal Articles & Books
Décembre, 2014
Sénégal
Mauritanie
Mali
Burkina Faso
Algérie
Niger
Nigéria
Tchad
Soudan
Soudan du Sud
Érythrée
Cameroun
République centrafricaine
Éthiopie
Afrique
Afrique sub-saharienne
Afrique centrale
Afrique orientale
Afrique septentrionale
Afrique australe
Afrique occidentale

In Africa, where most agriculture is rainfed, crop growth is limited by water availability. Rainfall variability during a growing season generally translates into variability in crop production. While the seasonality of rainfall in the drier rangelands can play a significant role in productivity, rain-use efficiency (RUE)—the amount of biomass produced (in kilograms of dry matter per hectare) per millimeter of rainfall—also drives production.