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1	Hydrologic Aspects of Land-Use Planning at Tumamoc Hill, Tucson, Arizona Popkin, Barney Paul 20 April 1974 (has links) From the Proceedings of the 1974 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 19-20, 1974, Flagstaff, Arizona / Tumamoc Hill, an 869-acre (352 ha) desert area near Tucson, Arizona, is being considered as a controlled- access environmental site. Water affects the site's geology, soils, vegetation, wildlife, and archaeology. The Hill is drained by three small watersheds. The largest is rapidly urbanizing upstream. Hydrologic aspects include potential flooding and erosion hazards. These may be reduced simply, economically, and wisely in a land-use plan. Upstream development increases storm runoff volumes, and flood peaks, and frequencies routed through the site, and threatens existing downstream urban development. Return periods of channel-overflow floods become shorter with urbanization. The region may be managed to reduce hydrologic hazards by three procedures: widen channels, install low checkdams, and vegetate drainageways. These methods will slow down runoff velocities, and increase cross -sectional area of flow and roughness coefficient. More water would also be available for vegetation and wildlife. The land-use plan should include environmental education programs. These would present important effects of water on the natural ecology, and hydrologic aspects of watershed urbanization. Hydrology -- Arizona. Water resources development -- Arizona. Hydrology -- Southwestern states. Hydrologic aspects Land management Small watersheds Flood protection Urbanization Arizona Land use Topography Land development Planning Soils Vegetation Hydrologic data Geology Wildlife Archaeology Floods Channel improvement Dams Vegetation establishment Erosion control Tumamoc Hill (Tucson Ariz) Land use planning

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Hydrologic Aspects of Land-Use Planning at Tumamoc Hill, Tucson, Arizona