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Wednesday, April 26 • 1:00pm - 1:20pm
A Comparison Of Southern Appalachian Wetland Soils

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A previous study characterized the soil of four Southern Appalachian wetland sites where endangered pitcher plants of the Sarracenia genus are currently growing. Pitcher plants are known to thrive in weakly acidic, nutrient-poor environments and are susceptible to competition from woody species when soils undergo nutrient shifts. The pitcher plant soils were found to have a pH range of 3.52 - 5.08 and cation exchange capacity (CEC) of between 7.3 - 99.8 cmol/kg. Base cation saturation ranged from 0.4 - 20.1 % and organic carbon from 4.9 - 32.9 % across the four sites. The project was then expanded to include soils collected from four sites where pitcher plants are not growing. Soil pH, CEC, exchangeable cations, and organic carbon were again used as methods to characterize non-pitcher plants soils so that direct comparisons could be made to pitcher plant soils. The non-pitcher plant soils will be evaluated as to whether they have higher concentrations of base cations (Ca2+, Mg2+, K+ and Na+) and/or higher pH than do the soils of pitcher plant sites. This presentation will focus on determining if the soil of Southern Appalachian wetlands is consistent across sites or if pitcher plant sites have a unique chemical signature.


Wednesday April 26, 2017 1:00pm - 1:20pm PDT
014 Zeis Hall