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Hydrology of vernal pools at three sites, southern Sacramento Valley

File Language:
English


Details

  • Alternative Title:
    Developing a floristic statewide vernal pool classification, and a functional model of pool hydrology and water qualit
  • Creators:
    Williamson, Robert J. ; Fogg, Graham E. ; Rains, Marc Cable ; Harter, Thomas H.
  • Corporate Creators:
    University of California, Davis. Dept. of Land, Air and Water Resources
  • Corporate Contributors:
    United States. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    FHWA/CA/IR-2004/08
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    California
  • Corporate Publisher:
    California. Department of Transportation
  • Description:
    The subsurface hydrology of vernal pools at three vernal pool complexes was investigated during three wet seasons in 2002-

    2004. The complexes were at Gridley Ranch, Valensin Ranch, and the Mather Field in northern California. The selected

    complexes provided variation in soils, landforms and topography. Three vernal pools were chosen in each complex based

    on variation in pool type, size, and position in the drainage system. The objectives were to describe the subsurface

    hydrology of vernal pools to refine the conceptual model of vernal pool hydrology and to answer questions about: the size of

    watershed support for vernal pools, the importance of the watershed and drainage system to the vernal pools, the possible

    effects of truncating the watershed or eliminating upstream pools, the potential role of perched aquifers, and subsurface

    connections among pools, in controlling the length of inundation. The vernal pools studied demonstrated markedly different

    hydrologic behaviors due to variation in topography and soil properties near the pools. The hydrologic behavior of vernal

    pools has important implications for land use practices and for impact remediation efforts. Additional research is needed to

    refine our understanding of vernal pool hydrology.
  • Format:
    PDF
  • Funding:
    F 2001 IR 20
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/27705/dot_27705_DS1.pdf
  • File Type:
    Filetype[PDF - 1.53 MB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha256:46c692c5c6e5733d90cbd0a529fb99bf4e3d2d619c879a2ff24e1c54bcff81f1
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