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Impacts of the Deepwater Horizon oil spill on the salt marsh vegetation of Louisiana



Details

  • Journal Title:
    Environmental Pollution
  • Personal Author:
  • NOAA Program & Office:
  • Description:
    The coastal Wetland vegetation component of the Deepwater Horizon oil spill Natural Resource Damage Assessment documented significant injury to the plant production and health of Louisiana salt marshes exposed to oiling. Specifically, marsh sites experiencing trace or greater vertical oiling of plant tissues displayed reductions in cover and peak standing crop relative to reference (no oiling), particularly in the marsh edge zone, for the majority of this four year study. Similarly, elevated chlorosis of plant tissue, as estimated by a vegetation health index, was detected for marsh sites with trace or greater vertical oiling in the first two years of the study. Key environmental factors, such as hydrologic regime, elevation, and soil characteristics, were generally similar across plant oiling classes (including reference), indicating that the observed injury to plant production and health was the result of plant oiling and not potential differences in environmental setting. Although fewer significant impacts to plant production and health were detected in the latter years of the study, this is due in part to decreased sample size occurring as a result of erosion (shoreline retreat) and resultant loss of plots, and should not be misconstrued as indicating full recovery of the ecosystem. (C) 2016 The Authors. Published by Elsevier Ltd.
  • Source:
    Environmental Pollution, 216, 361-370.
  • DOI:
  • Document Type:
    Journal Article
  • Rights Information:
    CC BY
  • Compliance:
    Submitted
  • Main Document Checksum:
    urn:sha256:91aa9c91c9a86c56a4684b1e7929cf64a5642936d9cc0c7d6f2d5c4aa9b26b1f
  • Download URL:
  • File Type:
    Filetype[PDF - 2.40 MB ]
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