How do people grow crops in Sahara Desert oases?

In the Sahara Desert, sedentary populations rely on oases—fertile areas where a perennial supply of fresh water is available—to cultivate crops. Because water is scarce, agriculture is limited to small "gardens" that require significant hand labor to maintain.1

Irrigation Methods

Farmers tap into underground water sources, such as sandstone aquifers, using various techniques to bring water to the surface:
* Traditional systems: These include springs ('ayn), wells (bi'er), and foggaras (inclined underground tunnels designed to tap into groundwater). Historically, water was lifted using tools like the shadoof (a pivoted pole and bucket) or the animal-driven noria (a Persian wheel).1
* Modern technology: In many accessible oases, these traditional methods have been replaced by motorized pumps.1

Crops Grown

The date palm is the primary food source and the foundation of oasis agriculture. Beneath the shade of these palms, farmers grow a variety of other crops, including:
* Fruits: Pomegranates, citrus fruits, figs, peaches, and apricots.21
* Cereals: Wheat, barley, and millet.21
* Other: Vegetables and specialty crops like henna.1