Abstract
Estuarine vegetation patterns are closely related to gromorphology through the landform attributes of microtopography and substrate composition. The former exerts controls on the frequency, duration and extent of tidal flooding, and the latter is a major control on soil moisture conditions. Together, these variables have a significant influence on soil salinity and waterlogging, both of which have a direct effect on plant physiology (See Chapman 1974, Etherington 1975) and therefore on the distribution of species. Clearly, a thorough understanding of estuarine vegetation requires an examination of the geomorphic processes, which, by creating variation in surface form and substrate conditions, have acted to differentiate plant habitats. This study examines vegetation pattern in the Minnamurra estuary, NSW, and attempts to relate to spatial expression of major vegetation types, and the species composition within each type, to geomorphic processes and landform evolution.
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