Bank erosion control with vegetation, San Francisco Bay, California
U.S. Army, Corps of Engineers, Coastal Engineering Research Center, 1979 - Nature - 39 pages
During 1975 to 1978, an intertidal shoreline stabilization study was conducted to determine biological means of controlling erosion. California cordgrass (Spartina foliosa Trin.) and mussels (Ischadium demissum Dillwyn) were used in San Pablo Bay and South San Francisco Bay, California. The study indicated that establishing cordgrass with seeds is not a practical method for controlling erosion. Cordgrass plugs are more useful than sprigs while the cordgrass-mussel plugs, termed bioconstructs, are the most tolerant to erosion by waves. The cordgrass-mussel community bioconstructs survived exceptionally well during the 13-month observations at Alameda Creek, a high-energy site. Once established, they are highly resistant to waves, will survive transplanting, and can be established in an area with up to a 7-kilometer fetch without wave-stilling devices. The biomass of the aerial parts of 23 natural California cordgrass marshes averaged 1,062 grams per square meter. This value is similar to those previously reported for smooth cordgrass (Spartina alterniflora) on the Atlantic coast. (Author).
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Alameda Creek area Army Engineer District arrangement for Alameda Bank erosion control bank stabilization Bay and South biomass California cordgrass seed centimeters Coastal Engineering Research control with vegetation controlling erosion cordgrass and mussels cordgrass Spartina Cordgrass-mussel bioconstructs planted Corte Madera Creek culms Curtis December l977 determine biological means Drakes Estero Engineering Research Center eroding banks exposed Failure Failure Failure hydroseeded intertidal shoreline stabilization intertidal zone James H kilometers per hour Knutson l6 kilometers located marsh vegetation Miscellaneous report months after planting mudbank Natural cordgrass-mussel community Newcombe number of stems percent plant survival Point Pinole Research Center Springfield rhizomal shoot ribbed mussels San Francisco Bay San Mateo San Mateo Bridge San Pablo Bay Seal Slough sediments shoreline stabilization study smooth cordgrass South San Francisco Spartina foliosa Sprigs and plugs square meter stem density substrate Table techniques tidal tolerant to wave transplants U.S. Army Engineer U.S. Coastal Engineering wave activity Winds blow onshore