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Constraints on the adjustment of tidal marshes to accelerating sea level rise
Saintilan, N.; Kovalenko, K.E.; Guntenspergen, G.; Rogers, K.; Lynch, J.C.; Cahoon, D.R.; Lovelock, C.E.; Friess, D.A.; Ashe, E.; Krauss, K.W.; Cormier, N.; Spencer, T.; Adams, J.; Raw, J.; Ibáñez, C.; Scarton, F.; Temmerman, S.; Meire, P.; Maris, T.; Thorne, K.; Brazner, J.; Chmura, G.L.; Bowron, T.; Gamage, V.P.; Cressman, K.; Endris, C.; Marconi, C.; Marcum, P.; St. Laurent, K.; Reay, W.; Raposa, K.B.; Garwood, J.A.; Khan, N. (2022). Constraints on the adjustment of tidal marshes to accelerating sea level rise. Science (Wash.) 377(6605): 523-527. https://dx.doi.org/10.1126/science.abo7872
In: Science (Washington). American Association for the Advancement of Science: New York, N.Y. ISSN 0036-8075; e-ISSN 1095-9203, more
Peer reviewed article  
Available in  Authors 
Keyword
    Marine/Coastal
Authors  Top 
  • Saintilan, N.
  • Kovalenko, K.E.
  • Guntenspergen, G., more
  • Rogers, K.
  • Lynch, J.C.
  • Cahoon, D.R.
  • Lovelock, C.E., more
  • Friess, D.A.
  • Ashe, E.
  • Krauss, K.W.
  • Cormier, N.
  • Spencer, T.
  • Adams, J.
  • Raw, J.
  • Ibáñez, C.
  • Scarton, F.
  • Temmerman, S., more
  • Meire, P., more
  • Maris, T., more
  • Thorne, K.
  • Brazner, J.
  • Chmura, G.L.
  • Bowron, T.
  • Gamage, V.P.
  • Cressman, K.
  • Endris, C.
  • Marconi, C.
  • Marcum, P.
  • St. Laurent, K.
  • Reay, W.
  • Raposa, K.B.
  • Garwood, J.A.
  • Khan, N.
Abstract
    Much uncertainty exists about the vulnerability of valuable tidal marsh ecosystems to relative sea level rise. Previous assessments of resilience to sea level rise, to which marshes can adjust by sediment accretion and elevation gain, revealed contrasting results, depending on contemporary or Holocene geological data. By analyzing globally distributed contemporary data, we found that marsh sediment accretion increases in parity with sea level rise, seemingly confirming previously claimed marsh resilience. However, subsidence of the substrate shows a nonlinear increase with accretion. As a result, marsh elevation gain is constrained in relation to sea level rise, and deficits emerge that are consistent with Holocene observations of tidal marsh vulnerability.
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