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Salt Dynamics in Non-Riparian Freshwater Wetlands
Mark T. Stacey, Civil & Environmental Engineering, University of California, Berkeley
Technical Completion Report SD-008
ABSTRACT: Based on a combination of field observations and laboratory experiments, we have
analyzed the annual and interannual salinity dynamics in a seasonal wetland in the San
Joaquin Valley. The field observations, which included direct measurement of both the
temporal and spatial variability in water velocities, conductivity, temperature an depth,
suggest that the salinity dynamics in the wetland are dominated by advective transport
processes which redistribute high salinity waters from the inlet throughout the wetland.
As such, evapotranspiration and exchange between the soil column and the water column
appear to play secondary roles in the salinity dynamics of the wetland. The conclusion
regarding the role of soil column-water column exchange has been reinforced using
laboratory experiments combined with numerical analysis, which indicate that the flux of
salt between the soil and water columns is small in magnitude.
SUGGESTED CITATION: Mark T. Stacey,
"Salt Dynamics in Non-Riparian Freshwater Wetlands"
(December 29, 2007).
University of California Water Resources Center.
Technical Completion Reports.
Paper stacey_sd008.
http://repositories.cdlib.org/wrc/tcr/stacey_sd008
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