Start | Author Index

767-6 Differences in Tolerance of Bald Cypress and Pond Apple to Salinity and Flooding.

Poster Number 577

See more from this Division: S07 Forest, Range & Wildland Soils
See more from this Session: Soil Nitrogen and Water Dynamics (Posters)

Wednesday, 8 October 2008
George R. Brown Convention Center, Exhibit Hall E

Guodong Liu1, Yuncong Li2, Bruce Shaffer2, Richard Roberts3, Yongshan Wan4 and Marion Hedgepeth5, (1)Tropical Research and Education Center, Univ. of Florida, Homestead, FL
(2)Tropical Research and Education Center, University of Florida, Homestead, FL
(3)Florida Park Service, Florida Dep. of Environmental Protection, Hobe South, FL
(4)Ecology Division, South Florida Water Management District, W. Palm Beach, FL
(5)Ecology Division, 4South Florida Water Management District, W. Palm Beach, FL
Abstract:
Bald cypress and pond apple are both key species in the floodplain of the Loxahatchee Rover Watershed in southeast Florida. They are both suffering from salinity and flooding stresses. Bald cypress is retreating but pond apple is not. The tolerances of the two species to salinity and flooding were studied at 3, 9, 15, and 20 parts per thousand (ppt) with pot experiments in 185 X 152 X 23 cm tubs in screen house. The results showed that mortality of bald cypress was 6.7, 60.0, 100, and 100% at 3, 9, 15, and 20 ppt, respectively but that of pond apple was 0 at 3 through 20 ppt. Their biomass, transpiration rates, leave wax content would also explain the difference in the tolerance of the two species to flooding and salinity stresses.

See more from this Division: S07 Forest, Range & Wildland Soils
See more from this Session: Soil Nitrogen and Water Dynamics (Posters)

<< Previous Abstract | Next Abstract