Translator Disclaimer
1 September 2004 The Role of Sedimentation in Estuarine Marsh Development within the San Francisco Estuary, California, USA
Steven D. Culberson, Theodore C. Foin, Joshua N. Collins
Author Affiliations +
Abstract

Friedrichs and Perry (2001) have hypothesized that exogenous sedimentation is a vital part of a feedback system (with tidal height, marsh elevation and local vegetation) that keeps the marsh surface in equilibrium with sea level. This study investigated the relationship between local sedimentation rates, presence of overlying vegetation, distance from tidal channel, and local elevation in two marshes located in the San Francisco Estuary. Exogenous sedimentation rates measured using sediment traps on marsh plains at approximately MHW were found to be much lower than expected. Sedimentation rates were highest closest to tidal channels, regardless of overlying vegetation, but declined rapidly on the inland portions of the marsh and were never high enough to build the marsh plain at rates greater than 0.91–1.37 mm m−2 yr−1. Maintenance of tidal marsh elevations solely by exogenous sedimentation within the San Francisco Estuary seems unlikely. Observations that local marshes keep pace with sea level rise implicate local productivity as the source of increased sediments.

Steven D. Culberson, Theodore C. Foin, and Joshua N. Collins "The Role of Sedimentation in Estuarine Marsh Development within the San Francisco Estuary, California, USA," Journal of Coastal Research 2004(204), 970-979, (1 September 2004). https://doi.org/10.2112/03-0033.1
Received: 17 April 2003; Accepted: 24 June 2003; Published: 1 September 2004
JOURNAL ARTICLE
10 PAGES


Share
SHARE
KEYWORDS
accretion
geomorphology
salinity gradient
tidal marsh
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top