Management of pinyon-juniper woodlands for the sustained yield of wood and water
Committee ChairFfolliott, Peter F.
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PublisherThe University of Arizona.
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AbstractThe growing awareness on the importance of pinyon-juniper woodlands has greatly influenced the conduct of this study. The main objectives of this study were to develop stand, basal area, and stock tables, to relate tree growths to patterns of water yield, and to outline forest management strategies for the continuous and sustained production of wood and water. The tree inventory data were gathered using the point-sampling method in 1965 and 1986. Precipitation and runoff data were provided by the U.S. Department of Agriculture Forest Service. It was found that streamflow on the study watersheds had low values compared to commercial forest stands. Occasional extreme precipitation and runoff events adversely affected the watersheds by destroying vegetation and degrading soil characteristics. Based on the findings, it is suggested that single tree selection system is most appropriate for the study area.
Degree ProgramRenewable Natural Resources