Organic matter

New Publication: "Variability of the optical signatures of dissolved organic matter in soils of different mangrove stands (Ouvéa, New Caledonia)” Environmental Science and Pollution Research

TROPECOS scientists involved in WP3 reveal that the composition of dissolved organic matter (DOM) in mangrove soils is strongly influenced by mangrove species and their biological traits, including mycorrhizal associations.

This is crucial because DOM plays a key role in carbon cycling and nutrient export from mangroves. These findings highlight that understanding species-specific DOM dynamics is essential to better assess carbon fluxes and the functioning of atoll mangrove ecosystems.

Field work in mangroves of Mamangua and Itacoatiara, Rio de Janeiro, Brazil

The second TROPECOS field work in mangroves of Rio de Janeiro (Mamangua and Itacoatiara) 24 May 2025 – 7 June 2026, involved 14 TROPECOS research scientists and students from BOREA, LPG, UFF and UFPA. We measured gas fluxes in mangrove soils and waters, dissolved carbon concentrations and water current in tidal creeks, and high resolution dissolved redox species in sediments using 2D gels.