By Roger H. Charlier, Christian P. De Meyer
ISBN-10: 3540494057
ISBN-13: 9783540494058
ISBN-10: 3540600221
ISBN-13: 9783540600220
The coastal region is topic to robust pressures from plenty of clients. Populations are migrating to it in huge numbers. desires to make the most it for its area, water and manpower. combination miners are looking to make the most mineral assets and health and wellbeing facilities are multiplying. it's a favourite zone for tourism and activity around the world. The area can increase economically. in spite of the fact that, coastlines are steadily receding all over the world, making the region fragile, weak, and risky. The publication offers equipment of coastal safety and seashore recovery and provides strategies to a number of the problems.
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Extra resources for Coastal Erosion: Response and Management
Example text
May be considered (cf. ). 1 H a r d Structures Along ocean coasts, a sea-wall constructed landward of the shoreline would have little immediate impact on the beach systems. However, an eroding shore would eventually reach the sea-wall and result in a loss of the natural beach 8. This impact can be avoided by means of beach nourishment. Similarly, structures could block the inland migration of coastal wetlands. For example, in the United States, the loss from a one meter rise would be 29-66 percent under the retreat option, but 50-82 percent if shores are protected with bulkheads 9.
De Meyer This value only reflects the marginal or added costs of protecting against the effects of a one meter rise in water level over the next 100 years. Costs associated with basic coastal protection in place or necessary to meet present coastal defense needs are not included. The estimate does not include either the value of the unprotected dry land or ecosystems that would be lost, nor does it consider the costs of responding to salt water intrusion nor the impacts of increase storm frequency.
Human activities that destroy the natural protection values of coastal resources can be forbidden. Perhaps the most important controls would be to prohibit filling wetlands, danuning rivers, mining coral and beach sands and cutting mangroves. Rebuilding of wetlands has been undertaken in some countries22. Undeveloped land with sufficient elevation and slope can be set aside to accommodate natural re-establishment of wetlands and mangroves. Within deltaic areas, natural processes can be maintained by diverting water and sediment.
Coastal Erosion: Response and Management by Roger H. Charlier, Christian P. De Meyer
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