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  • 标题:Reconciling models and measurements of marsh vulnerability to sea level rise
  • 本地全文:下载
  • 作者:Daniel J. Coleman ; Mark Schuerch ; Stijn Temmerman
  • 期刊名称:Limnology and Oceanography Letters
  • 电子版ISSN:2378-2242
  • 出版年度:2022
  • 卷号:7
  • 期号:2
  • 页码:140-149
  • DOI:10.1002/lol2.10230
  • 语种:English
  • 出版社:Wiley
  • 摘要:Abstract Tidal marsh survival in the face of sea level rise (SLR) and declining sediment supply often depends on the ability of marshes to build soil vertically. However, numerical models typically predict survival under rates of SLR that far exceed field‐based measurements of vertical accretion. Here, we combine novel measurements from seven U.S. Atlantic Coast marshes and data from 70 additional marshes from around the world to illustrate that—over continental scales—70% of variability in marsh accretion rates can be explained by suspended sediment concentratin (SSC) and spring tidal range (TR). Apparent discrepancies between models and measurements can be explained by differing responses in high marshes and low marshes, the latter of which accretes faster for a given SSC and TR. Together these results help bridge the gap between models and measurements, and reinforce the paradigm that sediment supply is the key determinant of wetland vulnerability at continental scales.
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