Mangrove Forest Inventories, French Guiana, 2024–2025

Each record corresponds to an inventory plot identified by a unique code (PlotID) and characterized by the survey year, the sampled area (m²), geographic coordinates in the UTM WGS84 Zone 22N system (latitude and longitude in meters), species composition, number of trees per hectare (ha), as well as estimates of above-ground biomass (AGB, tonnes of dry matter per hectare, t/ha) and above-ground carbon (AGC, tonnes per hectare, t/ha).

The inventories were conducted on plots of variable size (100 to 5,000 m²) with identification of the species present coded by letters: A = Avicennia germinans, R = Rhizophora (two species not distinguished), L = Laguncularia racemosa. Above-ground biomass (AGB) was calculated using species-specific allometric equations described in Fromard et al. (1998) and Olagoke et al. (2016). Above-ground carbon (AGC) was estimated using the allometric relationship described in Kauffman and Donato (2012).