Land-use and cultivation in the etaghas of the Tadrart Acacus (south-west Libya): the dawn of Saharan agriculture?
The hyperarid climate of the central Sahara precludes permanent agriculture, although occasional temporary ponds, or etaghas, as a result of rain-fed flooding of wadi beds in the Tadrart Acacus Mountains of the Libyan Sahara allow the pastoral Kel Tadrart Tuareg