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- Title
An integrated habitat enhancement approach to shoreline stabilization for a Chesapeake Bay island community.
- Authors
Hardaway, C. S.; Varnell, Lyle M.; Milligan, Donna A.; Priest, Walter I.; Thomas, George R.; Brindley, Rebecca C. H.
- Abstract
Shore protection and habitat enhancement along a residential island were the main goals of this shoreline study. The physical and geological factors necessary to design shoreline stabilization structures capable of confidently supporting suitable and stable habitat enhancement/restoration substrate are emphasized since this area of study generally may be unfamiliar to wetland resource managers. Erosion along the targeted shoreline is influenced by a unidirectional wave field from the south-southwest. Results of our analyses show that a headland control system comprised of headland breakwaters could be used successfully to stabilize the existing shoreline and provide resource managers flexibility in habitat restoration decisions. Headland breakwaters are designed to diffract wave energy so that shore planform equilibrium is attained and can be sized and positioned to maximize the length of stabilized shoreline. Maximization of the new shoreline length provides increased subaerial, intertidal, and subaqueous environments for flexible habitat restoration alternatives. The final restoration design developed through this study will create approximately 69,000 m2 of new habitat including stable beach, dune, tidal marsh, scrub shrub, and submersed aquatic vegetation. An additional 2,000 m2 of rock substrate habitat is provided directly by the headland control structures.
- Subjects
RESTORATION ecology; HABITATS; HARBORS; SHORE protection; COASTAL zone management; RECLAMATION of land
- Publication
Wetlands Ecology & Management, 2002, Vol 10, Issue 4, p289
- ISSN
0923-4861
- Publication type
Article
- DOI
10.1023/A:1020313020526