Constraints on the adjustment of tidal marshes to accelerating sea level rise
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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.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Constraints on the adjustment of tidal marshes to accelerating sea level rise |
| Series title | Science |
| DOI | 10.1126/science.abo7872 |
| Volume | 377 |
| Issue | 6605 |
| Year Published | 2022 |
| Language | English |
| Publisher | American Association for the Advancement of Science |
| Contributing office(s) | Western Ecological Research Center, Wetland and Aquatic Research Center, Eastern Ecological Science Center |
| Description | 5 p. |
| First page | 523 |
| Last page | 527 |