Pneumatophore CO₂ effluxes decrease with increased salinity in mangrove forests of Yucatan, Mexico.

ABSTRACT: Although mangrove forests are great carbon sinks, they also release carbon dioxide (CO₂) from soil, plants, and water through respiration. Many studies have focused on CO₂ effluxes only from soils, but the role of biogenic structures such as pneumatophore roots has been poorly studied. Hence, CO₂ effluxes from pneumatophores were quantified at sediment-air (non-flooded sediment) and water-air (flooded sediment) interfaces along a salinity gradient in three mangrove types (fringe, scrub, and basin) dominated by Avicennia germinans during the dry and rainy seasons in Yucatan, Mexico. Pneumatophore abundance explained up to 91% of CO₂ effluxes for scrub, 87% for fringe, and 83% for basin mangrove forests at the water-air interface. Overall, CO₂

SUBMITTER: Salas-Rabaza JA 

PROVIDER: S-EPMC11310504 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature