Fundamental Principles of Tidal Wetland Restoration

by Ray B. Krone, Univ of California, Davis, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract: Recognition of the vital role of tidal wetlands for sustaining migratory bird life, for indigenous animal habitat, and for the fishery of contiguous waters has stimulated efforts to restore former wetlands that have been diked and drained for agricultural use. Restoration of such lands requires as a minimum the provision of hydraulic and sediment regimes that promote the growth of plants, that establishes the wetland on the evolutionary path of natural wetlands, and that will continue to provide a healthy habitat with minimum management and maintenance. Meeting these goals requires the design of suitable wetland topography, hydraulic facilities, and perennial sediment supplies. This paper describes the challenges, principles, and methods that lead to successful design of tidal wetland restoration projects on diked lands.

Subject Headings: Wetlands (fresh water) | Ecological restoration | Land reclamation | Tides | Land use | Sediment | Hydraulic design

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