New study says river diversions key to restoring coastal swamp forests in Louisiana

Coastal swamp forests in Louisiana, facing rapid sea level rise, land subsidence and lack of fresh sediment from rivers, are particularly hard to protect and restore. A new study from the Louisiana Universities Marine Consortium suggests that river diversions can restore sediment and support the root growth needed for these forests to remain health

By: Elise Plunk

Outlets: Louisiana Illuminator

Published: November 5, 2026

Words: 598

Last Updated: 3 days, 22 hours ago

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Coastal swamp forests are perhaps one of the most iconic Louisiana wetlands. They are made up of mainly Cypress and Tupelo trees, supporting a wide range of ecosystem benefits, such as habitat for native species, carbon storage and storm surge protection for the coast.

But these types of forests in Louisiana, facing rapid sea level rise, land subsidence and lack of fresh sediment from rivers, are particularly hard to protect and …

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