Arizona Water Resource Vol. 74 No. 3 (May-June 1974)
Issue Date
1974-05Keywords
Arid regions -- Research -- Arizona.Water resources development -- Research -- Arizona.
Water resources development -- Arizona.
Water-supply -- Arizona.
Metadata
Show full item recordOther Titles
Arizona Water Resources News BulletinPublisher
Water Resources Research Center, College of Agriculture, University of Arizona (Tucson, AZ)Additional Links
https://wrrc.arizona.edu/publications/awrAbstract
Seven new water resources research projects have been approved for funding during FY1974-75 by the Office of Water Resources Research, U.S. Department of the Interior, according to Director Sol Resnick of the University of Arizona Water Resources Research Center. Two other projects, previously approved, have received funding under a supplemental appropriation for the last quarter of FY1973-74. These projects are all part of the OWRR Annual Allotment Program. In addition, six Allotment projects funded during the past year have been granted continuing support for further research during the coming year.Type
textNewsletter
Language
en_USCollections
Related items
Showing items related by title, author, creator and subject.
-
Yield and Water Use of Barley Cultivars Compared Under an Irrigation Water Gradient at Marana, 1987This study was initiated to determine how barley cultivars perform outside the environment for which they were selected. Also, a comparison was made of water use by a one-irrigation barley with water use of a commercial cultivar selected for high yield conditions. Six barley cultivars bred for differing growing conditions (Westbred Gustoe and Westbred Barcott - high input; Arivat and Prato - medium input; and, Seco and 2-22-9 - low input) were compared under 12 water regimes delivered by a line -source sprinkler system. Water use of Seco, a one-irrigation barley, and Westbred Gustoe, a commercial barley, was monitored with a neutron probe. The barley cultivars bred for high, medium, and low input conditions performed best in their respective optimum water levels with the exceptions of Westbred Barcott and Prato. Westbred Barcott (high input) yielded relatively well over all water levels, and Prato (medium input), performed similar to a high input barley. Seco (low input) used slightly less water than Westbred Gustoe (high input), primarily due to its earlier maturity. The water extraction pattern with depth was similar for both cultivars due to the frequent shallow irrigations applied in this study. The water extraction pattern of Seco needs to be investigated under one- irrigation conditions.
-
The Arizona Water Commission's Central Arizona Project Water Allocation Model SystemThe purpose and operation of the Central Arizona Project water allocation model system are described, based on a system analysis approach developed over the past 30 years into an interdisciplinary science for the study and resolution of complex technical management problems. The system utilizes mathematical and other simulation models designed for computer operations to effectively solve such problems as the CAP faces including those concerned with social and economic considerations. The model is composed of two major components: (1) a linear program designed to determine the optimal allocation of all sources of water to all demands and, (2) a hydrologic simulator capable of reflecting the impact of distribution alternatives on per-unit cost of delivery. The model, currently being use, has substantially contributed to a greater understanding of water usage potential in Arizona.
