Runoff and Floodwater Farming in Middle East and American Southwest
Floodwater is the water that runs through valleys, streets, arroyos and wadis after a rain storm. Sparse vegetation, little soil development, soil crusts, and low infiltration/absorption contribute to fast peaking flows in arid regions. Storms lead to floods that may continue for minutes, hours or days depending on the rainfall. Flood depths of 5-10 meters may occur in extreme events. Despite the challenges, residents in arid and semi-arid lands have developed a wide range of strategies to hold and capture critically needed water. In many cases, floodwater has been the primary source of drinking water for people and livestock, water … Continue reading