COASTAL CRITICAL ZONE

Climate-driven decoupling of wetland and upland biomass trends on the mid-Atlantic coast

The Kirwan group at VIMS has developed a study to systematically evaluate the dynamic association between four decades of sea-level driven coastal landscape organization and ecosystem carbon pools along the rapidly warming and receding coast of the U.S. mid-Atlantic region. By integrating observations across traditional ecosystem boundaries, the results pointed to a fundamental decoupling between negative sea-level rise impacts at low elevations and positive climate impacts at higher elevations, such that the net impact of interacting facets of climate change is an overall increase in aboveground coastal biomass despite substantial habitat loss.

The study also identified an elevation threshold of sea-level rise impact around 2 m above sea level, which I think would be of interest more generally.

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