How have dams and irrigation projects affected Algerian agriculture?

In Algeria, where irregular precipitation has historically posed a significant threat to farming, the construction of dams and irrigation projects has been essential for stabilizing crop production.1

At the time of independence, the country possessed approximately 20 sizable dams. Through an active construction program, this number nearly doubled by the late 1980s, which substantially increased the nation's total irrigated acreage. These efforts have provided a necessary buffer against the country's inherent aridity, which renders more than four-fifths of the land uncultivable.1

However, the impact of these water management efforts is tempered by competing needs. The country's limited water resources are under increasing pressure to satisfy both agricultural requirements and urban-industrial demands. For instance, the Chelif River has been so intensively exploited for irrigation and drinking water that its lower reaches often cease to flow during the summer months. Despite the stability provided by these infrastructure projects, Algeria continues to face challenges in its agricultural sector, including underinvestment and the need to import a large portion of its food requirements.12