Beach and Dune Restoration by Karl F. Nordstrom

By Karl F. Nordstrom

This ebook analyzes the tradeoffs inquisitive about restoring shorelines and dunes on intensively built coasts, the simplest ways to take advantage of, and the how one can teach and contain stakeholders. It identifies recovery ideas that improve ordinary techniques and make coastal landforms extra dynamic whereas conserving their worth for shore defense. as well as ecological values, the concept that of recovery is accelerated to incorporate actual, fiscal, social and moral ideas. Compromise administration suggestions are urged to house the wishes of other person teams, together with municipal managers and person homeowners. The technique of overcoming inertia or antagonism to environmentally pleasant activities also are mentioned. The e-book is written for coastal scientists, engineers, planners and executives, and serves as an invaluable supplementary reference textual content for classes in coastal administration, ecology and environmental ethics.

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The timing of the operations can be critical (Lawrenz-Miller 1991). It is possible to conduct operations around the activities of fauna using the beach but not without difficulty. The need to avoid the nesting and hatching season of loggerhead turtles at Folly Beach, South Carolina required operations to be conducted in the most extreme weather conditions in winter (Edge et al. 1994). Increasing the likelihood of re-colonization in borrow areas may be possible if small, un-mined “refuge patches” are left undisturbed within the larger mined area (Hobbs 2002).

Gravel beaches are good for wave watching because the steep, permeable beach quickly dissipates swash uprush, and beach users can sit close to the breaking waves without being wetted by the swash. Gravel does not hold water or facilitate capillary rise like sand, so it is a drier platform for sitting, and it does not adhere to skin and clothes. Sitting on granules and small pebbles can be preferable to sitting on sand, although sand may be preferred over larger gravel. Disadvantages of gravel beaches are the steep foreshores that make vertical access difficult, the high berm heights that can obscure views of the sea from inland, and the coarse grains that make walking barefoot uncomfortable and deploying beach umbrellas difficult (Nordstrom et al.

Fine-grain sediments alter the structure of habitats after they settle into the beach matrix by changing bulk density, shear resistance, compaction, moisture retention, and flow in the beach water table. They may be more resistant to burrowing organisms, and the hydraulic conductivity in the beach may decrease, causing lower rates of water table discharge (Jackson et al. 2002). Fill deposits reworked by waves and swash may become similar to native beach materials, but the depth of reworking on low-energy beaches is limited, and unreworked fill deposits on these beaches may be closer to the surface than the depth reached by burrowing organisms.

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