Fig. 2: Spatiotemporal variation of terrestrial and aquatic N2O and CH4.
From: Low N2O and variable CH4 fluxes from tropical forest soils of the Congo Basin
a Spatiotemporal variation of soil CH4 fluxes measured at three different tropical forest types in the DR Congo between 2016 and 2020 and b corresponding dissolved CH4 measured in headwater streams draining the soil flux core site catchment. Dashed lines indicate CH4 at equilibrium with the atmosphere (0.03 µg C L−1). c Spatiotemporal variation of soil N2O fluxes measured at three different tropical forest types in DR Congo between 2016 and 2020 and d corresponding dissolved N2O measured in headwater streams draining the soil flux core site catchment. Dashed lines indicate N2O at equilibrium with the atmosphere (0.36 µg N L−1). Montane forest (Kahuzi-Biéga National Park (triangles)), lowland forest (Maringa-Lopori-Wamba Landscape (star), Yangambi Biosphere Reserve (cross symbols), Yoko Forest Reserve (plus symbols)), swamp forest (Jardin Botanique d’Eala (closed circles inundated, open circles non-inundated)). Note, for visualization purposes data was pooled into weekly classes irrespective of sampling year.
