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    • Journal of Range Management, Volume 40 (1987)
    • Journal of Range Management, Volume 40, Number 5 (September 1987)
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    Rainfall Interception by Midgrass, Shortgrass, and Live Oak Mottes

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    Author
    Thurow, T. L.
    Blackburn, W. H.
    Warren, S. D.
    Taylor, C. A.
    Issue Date
    1987-09-01
    Keywords
    flow
    interception (hydrology)
    Hilaria belangeri
    losses
    water yield
    Bouteloua curtipendula
    Quercus virginiana
    rain
    Texas
    
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    Citation
    Thurow, T. L., Blackburn, W. H., Warren, S. D., & Taylor, C. A. (1987). Rainfall interception by midgrass, shortgrass, and live oak mottes. Journal of Range Management, 40(5), 455-460.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/645221
    DOI
    10.2307/3899611
    Additional Links
    https://rangelands.org/
    Abstract
    Interception, as a function of simulated rainfall intensity and duration, was determined for a midgrass [sideoats grama (Bouteloua curtipendula (Michx.) Torr.)] and a shortgrass [curleymesquite (Hilaria belangeri (Steud.) Nash)]. In addition, the redistribution of natural precipitation via plant interception was determined for live oak (Quercus virginiana Mill.) mottes. Interception storage capacity for sideoats grama and curleymesquite was 81 and 114% of dry weight, respectively. This difference was attributed to physical characteristics of the species and their respective growth forms. However, because sites dominated by sideoats grama had more standing biomass (3,640 kg ha-1) than sites dominated by curleymesquite (1,490 kg ha-1), it was estimated that a sideoats grama dominated site had an interception storage capacity of 1.8 mm compared to curleymesquite dominated site with an interception storage capacity of 1.0 mm. Based upon precipitation event size and distribution for the study site at the Texas Agricultural Experiment Station near Sonora, Texas, the estimated interception loss for curleymesquite dominated sites was 10.8% of annual precipitation, compared to 18.1% interception loss for sideoats grama dominated sites. Only 54% of the annual precipitation reached mineral soil beneath the oak mottes as throughfall or stemflow. The remainder of the precipitation was intercepted by the motte canopy or litter layer and evaporated. Due to the water concentrating effect of stemflow, soil near the base of trees received about 222% of annual precipitation. Soil at a distance greater than approximately 100 mm from a tree trunk received only 50.6% of annual rainfall. Individual tree canopy width, height and depth measurements were insignificant predictors of stemflow and throughfall. Interception, throughfall and stemflow, expressed as percent of storm precipitation, were well-defined curvilinear functions.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3899611
    Scopus Count
    Collections
    Journal of Range Management, Volume 40, Number 5 (September 1987)

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