Fig. 1: Forest cover of sub-Saharan Africa.
From: Low N2O and variable CH4 fluxes from tropical forest soils of the Congo Basin
2019 forest cover of sub-Saharan Africa (0% white, 100% dark green)78 with Congo Basin boundary delineation in black showing all currently published in situ African tropical forest studies on N2O and/or CH4 in white triangles12,13,14,15,16,17,18,19,20,21,22,23 and this study in yellow (terrestrial) and blue (aquatic). Circles represent core long-term observation sites and squares represent supporting sites. Riverine dissolved CH4 and N2O samples were taken from headwater streams draining the same catchments in which the core sites were located.
