macrophyte performance as a function of platform elevation in micro and macrotidal salt marshes
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Department of Biological Sciences University of South Carolina Columbia, SC 29208. Macrophyte performance as a function of platform elevation in micro- and macrotidal salt marshes. Diana Rodriguez. Experimental Design. Six treatments and six replicates within treatments.

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macrophyte performance as a function of platform elevation in micro and macrotidal salt marshes
Department of Biological Sciences

University of South Carolina

Columbia, SC 29208

Macrophyte performance as a function of platform elevation in micro- and macrotidal salt marshes

Diana Rodriguez

slide2
Experimental Design

Six treatments and six replicates within treatments

Replicated at three sites with varying tidal ranges:

Cocodrie, La -- 30-40 cm

North Inlet, SC -- 1.5 m

PIE, MA -- 3-4 m

Growth response of S. alterniflora

will likely be affected by varying

the marsh platform (MP) relative

to local mean tidal range.

MP

slide3
Nov. harvest &

May planting

Platform varies from

0.5 m – 1.33 m

MHT

slide4
Average Stem Height – Cocodrie, LA

}

Low marsh morphology

}

High marsh morphology

slide6
Average Stem Density – Cocodrie, LA

}

Within MHT & MLT

}

Further from MHT & MLT

slide10
Aboveground:Belowground Ratio – PIE LTER, MA

Increase in aboveground biomass

as you decrease height of platform

below MHT

summary
Summary
  • Lower stem densities below MHT
    • Morphologically similar to low marsh
    • % belowground biomass of first 10 cm appears to increase below MHT
  • Higher stem densities above MHT
    • Morphologically similar to high marsh
  • NAPP appears to increase (in microtidal site) with increasing inundation
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