rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    non sort: The
    title: effects of vegetation on the water balance of an Edwards Plateau watershed
    sub title: a GIS modeling approach
  name:
    name part: Redeker, Eric James
    name part: 1971-
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 1998
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xi, 82 leaves : illustrations ; 28 cm.
  abstract: Shrub encroachment can reduce water yield from the
  abstract: rangelands of the Edwards
  abstract: Plateau region of Texas through increased
  abstract: evapotranspirational losses. This has been
  abstract: demonstrated through a number of small-scale empirical
  abstract: studies on the effect of vegetation on hydrology. The goal
  abstract: of this study was to investigate the effect of vegetation
  abstract: and brush management on the water balance at the landscape-
  abstract: scale on the Edwards Plateau using a GIS simulation
  abstract: modeling approach. A comprehensive GIS data base was
  abstract: developed for the 206 k study area, Cusenbary Draw
  abstract: watershed on the Edwards Plateau, as a foundation for
  abstract: assessing the effect of vegetation on water yield.
  abstract: Vegetation analysis was conducted for the study area using
  abstract: 1955 and 1990 aerial photography, digital image processing
  abstract: and GIS analysis. The overall woody vegetation cover
  abstract: remained relatively constant between 1955 and 1990 due to
  abstract: brush management practices adopted by ranches within the
  abstract: watershed. Range sites with the highest potential herbaceous
  abstract: production experienced declines in woody vegetation cover
  abstract: from 1955 to 1990. Conversely, incremental increases in
  abstract: woody vegetation cover were observed on range sites as
  abstract: herbaceous production potential declined. These observed
  abstract: differences in woody cover change between range sites imply a
  abstract: concentration of
  abstract: investment in brush management within range sites promising
  abstract: the highest rate of return. Simulation studies using the
  abstract: SPUR-91 hydrologic model were conducted to systematically
  abstract: evaluate the effect of vegetation cover and composition on
  abstract: the water balance of the watershed. Results of the
  abstract: simulation studies revealed the dynamics of landscape-scale
  abstract: hydrologic balances as a function of woody vegetation cover
  abstract: across range sites. The simulation results agreed well with
  abstract: the findings of similar small-scale and empirical studies.
  abstract: The simulation studies also revealed limitations of the
  abstract: SPLJR-91 hydrologic 'c model and suggested ways to improve
  abstract: the model structure. The results of the 91 simulation
  abstract: studies were used to assess the hydrologic impacts associated
  abstract: with two brush management scenarios. In the absence of brush
  abstract: management a 50% reduction in water yield from 1990 levels
  abstract: was predicted. However, with the implementation of a
  abstract: publicly funded brush management program a 180% increase over
  abstract: 1990 levels was predicted.
  note: by Eric James Redeker.
  note: Vita.
  note: "Major subject: Rangeland Ecology and Management".
  note: Issued also on microfiche from Lange Micrographics.
  note: Includes bibliographical references: pages 66-71.
  note: M.S. Texas A&M University 1998.
  subject:
    topic: Major rangeland ecology and management
  record info:
    record content source: TXA
    record creation date: 981211
    record change date: 20151020173753.0
    record identifier: in00001453736