The invisible flood: The chemistry, ecology, and social implications of coastal saltwater intrusion


Journal Article (Review)

© The Author(s) 2019. Published by Oxford University Press on behalf of the American Institute of Biological Sciences. All rights reserved. Saltwater intrusion is the leading edge of sea-level rise, preceding tidal inundation, but leaving its salty signature far inland. With climate change, saltwater is shifting landward into regions that previously have not experienced or adapted to salinity, leading to novel transitions in biogeochemistry, ecology, and human land uses. We explore these changes and their implications for climate adaptation in coastal ecosystems. Biogeochemical changes, including increases in ionic strength, sulfidation, and alkalinization, have cascading ecological consequences such as upland forest retreat, conversion of freshwater wetlands, nutrient mobilization, and declines in agricultural productivity. We explore the tradeoffs among land management decisions in response to these changes and how public policy should shape socioecological transitions in the coastal zone. Understanding transitions resulting from saltwater intrusion—and how to manage them—is vital for promoting coastal resilience.

Full Text

Duke Authors

Cited Authors

  • Tully, K; Gedan, K; Epanchin-Niell, R; Strong, A; Bernhardt, ES; Bendor, T; Mitchell, M; Kominoski, J; Jordan, TE; Neubauer, SC; Weston, NB

Published Date

  • May 1, 2019

Published In

Volume / Issue

  • 69 / 5

Start / End Page

  • 368 - 378

Electronic International Standard Serial Number (EISSN)

  • 1525-3244

International Standard Serial Number (ISSN)

  • 0006-3568

Digital Object Identifier (DOI)

  • 10.1093/biosci/biz027

Citation Source

  • Scopus