Publication Abstracts

Pace et al. 2021

Pace, G., D. Peteet, M. Dunton, C. Wang-Mondaca, S. Ismail, J. Supino, and J. Nichols, 2021: Importance of quantifying the full-depth carbon reservoir of Jamaica Bay Salt Marshes, New York. City Environ. Interact., 12, 100073, doi:10.1016/j.cacint.2021.100073.

Constraining uncertainty in the global carbon cycle requires valid assessment of both surface and stored carbon in marine and coastal ecosystems (Blue Carbon) as well as terrestrial carbon (forests, peatlands, and soils). Quantifying the global carbon stock of coastal salt marshes, potentially the most efficient carbon-burying ecosystems in the world per area, is a key area of further research in both of these fields. One of the largest challenges is that despite the fact that salt marshes often sequester carbon several meters deep, nearly all estimates of salt marsh carbon stocks consider only the upper 1m of sediment. This is particularly concerning because coastal wetlands are increasingly at risk due to climate change, sea level rise, and anthropogenic disturbance and destruction. Using full-depth measurements from marsh cores, we estimate the carbon stock of five salt marshes in the highly urbanized estuary of Jamaica Bay, New York and argue that partial-depth measurements can underestimate carbon stocks. These estimates use calculated carbon content and probe depth data of these marshes collected between 2000 and 2019, applying this data across the full area of the marsh obtained from satellite imagery. Carbon density measurements are then multiplied by the full-depth volume of the marshes to create an estimate of total carbon stock. In addition to calculating present-day estimates, we compare our carbon stock estimates to historical Jamaica Bay imagery to calculate historical carbon stocks and carbon loss. The carbon stock estimates presented here show a 95% carbon stock loss between 1885 and 2019 in Jamaica Bay and highlight the severe underestimation of carbon stocks without full-depth calculations. These findings have important implications for disappearing salt marshes with regard to the global carbon cycle and the incorporation of belowground carbon into global climate models. The findings are increasingly relevant for advocacy efforts aiming to conserve these marshes with sea level rise.

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BibTeX Citation

  author={Pace, G. and Peteet, D. and Dunton, M. and Wang-Mondaca, C. and Ismail, S. and Supino, J. and Nichols, J.},
  title={Importance of quantifying the full-depth carbon reservoir of Jamaica Bay Salt Marshes, New York},
  journal={City Environ. Interact.},

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RIS Citation

ID  - pa01700t
AU  - Pace, G.
AU  - Peteet, D.
AU  - Dunton, M.
AU  - Wang-Mondaca, C.
AU  - Ismail, S.
AU  - Supino, J.
AU  - Nichols, J.
PY  - 2021
TI  - Importance of quantifying the full-depth carbon reservoir of Jamaica Bay Salt Marshes, New York
JA  - City Environ. Interact.
VL  - 12
SP  - 100073
DO  - 10.1016/j.cacint.2021.100073
ER  -

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