Plant Ecology of the Coastal Salt Marshlands of San Diego County, California

Purer, Edith A.

doi:10.2307/1948423

Cited by 93 publications

(59 citation statements)

References 1 publication

(1 reference statement)

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“…As even minor variations in elevation (or flooding level) can be important for marsh vegetation (Purer 1942), and vegetation responses to these variations are extremely dependent upon local conditions, it is likely that the damage observed at IRC 12 could be avoided with only minor reductions in the flooding levels.…”

Section: Summer Flooding and Vegetation Damagementioning

confidence: 99%

Vegetation dynamics in impounded marshes along the Indian River Lagoon, Florida, USA

Rey

Crossman

Kain

1990

Environmental Management

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/ Data are presented on the vegetation dynamics of two impounded marshes along the Indian River Lagoon, in east-central Florida, USA. Vegetation in one of the marshes (IRC 12) was totally eliminated by overflooding and by hypersaline conditions (salinities over 100 ppt) that developed there in 1979 after the culvert connecting the marsh with the lagoon was closed. Over 20% recovery of the herbaceous halophytes Salicomia virginica, S. bigelovii, and Batis marltima was observed at that site after the culvert was reopened in 1982, but total cover in the marsh remains well below the original 75%. No recovery of mangroves was observed at this site, The second site (SLC 24), while remaining isotated from the lagoon during much of the study, did not suffer the complete elimination of vegetation experienced at the first site. At this location, mangroves increased in cover and frequency with a concomitant decrease in herbaceous hatophytes.Considerable damage to the vegetation was evident at IRC 12 when the impoundment was closed and flooded for mosquito control in 1986. Although the damage was temporary, its occurrence emphasizes the need of planning and constant monitoring and adjustment of management details as conditions within particular marshes change. Storms and hurricanes may be important in promoting a replacement of black mangroves by red mangroves in closed impoundments because the former cannot tolerate pneumatophore submergence for long periods of time.

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Section: Summer Flooding and Vegetation Damagementioning

confidence: 99%

Vegetation dynamics in impounded marshes along the Indian River Lagoon, Florida, USA

Rey

Crossman

Kain

1990

Environmental Management

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“…They are found ( I ) i n saline waters ranging from near fresh to about 40 parts per thousand (Harshberger, 1911;Purer, 1942); (2) in intertidal areas that are continuously flooded from 8 to 16 hours per day (Rowntree, 1973), and (3) in sediments from clays to cobbles in size (Pestrong, 1972;authors' observations). Commonly, the principal factor affecting initial establishment and the long-term stability of salt marshes is wave stress.…”

Section: Army Corps Of Engineers Coastal Engineering Research Centementioning

confidence: 99%

National survey of planted salt marshes (Vegetative stabilization and wave stress)

et al. 1981

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There have been many recent attempts to establish salt marshes in the coastal United States. Plantings are generally made for the purpose of shore protection, dredged material stabilization, or habitat development. During 1980 a survey was made of recent and historic salt marsh planting projects. Data were collected in 104 planted marshes in 12 coastal states. The relative stability of these plantings was compared to physical indicators of wave climate severity (fetch, shore slope, offshore depth, shore configuration, sediment grain size, orientation with respect to prevailing and storm winds, and proximity to boat traffic).Fetch, shore configuration, and sediment grain size were found to be related to planting stability. Using these parameters, a system was developed for evaluating potential marsh development sites.

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“…Numerous additional factors influence the water table, including height of the preceding tide (neap, spring, storm), duration of tidal submersion, distance of the local area from water source(s), elevation or microtopography of the surface, abundance and kinds of plants present, and underlying bedrock (Purer, 1942;Clarke and Hannon, 1969). Other factors are mentioned below in discussions of salinity.…”

Section: Marsh Water Tablementioning

confidence: 99%

“…Roots help secure the substrate beneath the sediment-water interface and thus promote accumulation of clayey, cohesive sediments. Plant roots may extend more than a meter in depth along Georgia streamside marshes and up to 50 cm in some adjacent habitats (Edwards and Frey, 1977; d. Purer, 1942, Figures 8 through 16). 6.…”

Section: Implications Of Water Movement In Salt Marshesmentioning

confidence: 99%