Graduate Project

 

Monitoring sand dune processes at the Oregon Dunes National Recreation Area : can pre-vegetated conditions be restored? Public Deposited

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https://ir.library.oregonstate.edu/concern/graduate_projects/nk322f09x

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  • The Oregon Dunes National Recreation Area is managed by the Siuslaw Forest division of the United States Forest Service (USFS). This area has gradually been overcome by vegetation since the 1950's, originating with the exotic European Beach Grass (Ammophila arenaria). The invasion of this exotic vegetation has resulted in a decline of sand movement and the growth and expansion of a wetland in the deflation plain. The Siuslaw division has removed and replaced a section of foredune to remove the stabilizing vegetation, in order to study the potential restoration of sand dune processes. Sand movement and wind data, combined with aerial photograph analysis aid in assessing physical changes caused by this treatment and subsequent management. A geographical information system (GIS) template has been designed from aerial photographs and surveyed profiles in order to record and monitor the stages of geomorphic change. Continuing studies of the area will build upon the GIS database developed as part of this analysis.
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