Non-conservative behavior of dissolved organic carbon in a Georgia salt marsh creek indicates summer outwelling

Codden, Christina J.; Edwards, Catherine; Stubbins, Aron

doi:10.1016/j.ecss.2021.107709

Cited by 4 publications

(1 citation statement)

References 32 publications

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“…Additionally, subtropical salt marshes can display 'hot' moments of high C export or import, such as the coastal marsh in Codden et al (2022) where as much as 12% of annual organic C sequestration was exported as DOC in one summer month across a 16 month study. Longer term monitoring would be necessary to determine whether our measurements reflect a 'hot' moment.…”

Section: Tidal Effects In Coastal Marshesmentioning

confidence: 99%

Tidal influence on dissolved CO₂ at Sapelo Island, Georgia, USA

Turner

Desai²,

Blackstock³

et al. 2022

Environ. Res.: Ecology

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Measuring carbon (C) loss through different pathways is essential for understanding the net ecosystem exchange of carbon dioxide (CO2) in tidal wetlands, especially in a reality where wetland mitigation and protecting coastlines from rapid sea-level rise is a growing priority. Tracking C loss can help reveal where an ecosystem is storing the most C, but it can also help scientists understand near- and long-term impacts of wetland restoration on climate. A recently developed dissolved CO2 (pCO2) platform was tested in a subtropical salt marsh with an apparatus that raised and lowered sensor housing with the tide. Additional low-cost water quality sensors were installed nearby for measuring turbidity and salinity. Here, we evaluated how well this floating sensor platform along with twenty-eight days of biogeochemical data from a tidal salt marsh could detect C import and export from tidal effects. This work provides a pathway to low-cost, routine in-situ C exchange measurements which serve the needs of environmental managers, researchers, and others interested in better estimating wetland C storage and transport.

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Section: Tidal Effects In Coastal Marshesmentioning

confidence: 99%