Chapter

Geomorphology, Hydrology, and Tidal Influences

Elizabeth Burke Watson

in Ecology, Conservation, and Restoration of Tidal Marshes

Published by University of California Press

Published in print October 2012 | ISBN: 9780520274297
Published online January 2013 | e-ISBN: 9780520954014 | DOI: http://dx.doi.org/10.1525/california/9780520274297.003.0003
Geomorphology, Hydrology, and Tidal Influences

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This chapter reviews the physical factors that shape tidal-marsh landscapes in the San Francisco estuary and discusses functional classes of landscape elements. Physical processes covered include natural variability in salinity, responses to human-mediated surface-water management practices, tides, and rates of sea-level rise. Landscape elements include the marsh plain, fringing low marsh, marsh-upland ecotone, tidal channels, berms, and salt ponds, pannes, and salinas. Studies of tidal-channel structure, function, and stability are reviewed, with an emphasis on variations in planform and sinuosity, slumps, tidal asymmetry, and hydraulic geometry relations. Keys areas for future research are identified, with a focus on identifying how tidal wetlands are responding and will respond to present and future increased inundation regimes.

Keywords: climate change; sea level change; inland waters; abiotic factors; salinity tolerance; environmental effects; coastal morphology

Chapter.  10104 words.  Illustrated.

Subjects: Animal Pathology and Diseases

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