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Filters: Categories: Data (X) > partyWithName: Camille L Stagg (X) > partyWithName: Courtney T Hall (X)

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The Mississippi River Deltaic Plain has extensive marsh habitats (fresh, intermediate, brackish, and saline) where soil cores were collected to a depth of 100 cm at 24 sites to assess long-term carbon accumulation rates and coast-wide burial rates. Each core was sectioned into 2-cm depth intervals, and select intervals were analyzed for percent moisture, bulk density, total carbon, and radionuclide (137Cs and 210Pb).
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This dataset provides information on plant sexual reproduction of a clonally-spreading perennial species, Spartina alterniflora. We investigated flowering phenology, potential seed and seedling production, and flower damage in reference and restored sites in southeastern Louisiana. Additional covariates of elevation and soil parameters were used to investigate underlying mechanisms of differences.
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We characterized coastal wetland responses to flooding stress by measuring vegetation cover, wetland elevation and water elevation in healthy and degrading wetlands dominated by Spartina patens. Wetland elevation was measured using real-time kinematic survey methods. Vegetation cover was determined by visual estimation methods, and water elevation was measured using in situ continuous recorders. In addition to these local-scale responses, we also measured landscape-scale patterns of land and water aggregation or fragmentation using remotely sensed data (Jones et al., 2018). Associated products: Jones, W.R., Hartley, S.B., Stagg, C.L., and Osland, M.J. 2018. Land-water classification for selected sites in McFaddin...
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Short-term carbon accumulation rates were examined by collecting 10-cm deep soil cores at 24 sites located in marshes spanning the salinity gradient in coastal Louisiana. Percent moisture, bulk density, total carbon content, and the short-term accretion rates obtained with feldspar horizon markers were measured to determine total carbon accumulation and storage rates.
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Coastal wetlands store more carbon than most ecosystems globally. However, little is known about the mechanisms that control the loss of organic matter in coastal wetlands at the landscape scale, and how sea-level rise will impact this important ecological function.
    map background search result map search result map Organic matter decomposition across a coastal wetland landscape in Louisiana, U.S.A. (2014-2015) Long-term soil carbon data and accretion from four marsh types in Mississippi River Delta in 2015 Short term soil carbon data and accretion rates from four marsh types in Mississippi River Delta collected in 2015 Salt marsh phenology and sexual reproductive characteristics at reference and restored sites in Louisiana, USA (2016) Local and landscape-scale data describing patterns of coastal wetland loss in the Texas Chenier Plain, U.S.A., 2017-2018 Local and landscape-scale data describing patterns of coastal wetland loss in the Texas Chenier Plain, U.S.A., 2017-2018 Salt marsh phenology and sexual reproductive characteristics at reference and restored sites in Louisiana, USA (2016) Organic matter decomposition across a coastal wetland landscape in Louisiana, U.S.A. (2014-2015) Short term soil carbon data and accretion rates from four marsh types in Mississippi River Delta collected in 2015 Long-term soil carbon data and accretion from four marsh types in Mississippi River Delta in 2015