Tag Archives: american southwest

Runoff and Floodwater Farming – Examples from MENA and American SW

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To better understand the options for runoff agriculture, below is a review of some of the imaginative and effective techniques developed for use of runoff and floodwaters in the MENA region and the American Southwest (SW). Experimentation and experience over more than 5,000 years led to remarkable systems that enabled people to live well even in some of the most arid environments. These systems can be built and maintained by local people using available tools. Two major goals are to hold the water back so it doesn’t run off and to concentrate the water so that even the most arid … Continue reading →

Runoff and Floodwater Farming in the MENA and SW North America

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When it rains some water enters the soil, the rest runs off. As it gathers strength it becomes the floodwater 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[1]. 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. 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 … Continue reading →