Status of Pilot Watershed Studies in Arizona

by Harry E. Brown, Principal Hydro.; Forest Service, U.S. Dept. of Agric., Flagstaff, AZ,

Serial Information: Journal of the Irrigation and Drainage Division, 1970, Vol. 96, Issue 1, Pg. 11-23

Document Type: Journal Paper


Critical water shortages in Arizona have led to intensive investigations of methods for increasing streamflow from the state's watersheds. These investigations include research studies of hydrologic processes and behavior, pilot tests of promising treatments, economic studies, and surveys of potentially treatable areas. Results are reported from pilot tests in chaparral, juniper, ponderosa pine, and mixed-conifer vegetation types. To date, streamflow responses following watershed treatments have varied from zero to as much as 9 in. per year, depending on nature of the treatment, type of vegetation, and climate. These results and others forthcoming will play an important role in future multiple use management of forest lands in Arizona.

Subject Headings: Watersheds | Streamflow | Vegetation | Water shortage | Hydrologic models | Hydrologic properties | Economic factors | Geomatic surveys | Arizona | United States

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