Figure 9From: Carbon dioxide fluxes from contrasting ecosystems in the Sudanian Savanna in West Africa Half-hourly values of net ecosystem exchange in relation to half-hourly values of photosynthetic photon flux density for (a) Sumbrungu, (b) Kayoro and (c) the Nazinga Park. Positive values are net release of CO2 into the atmosphere, while negative values represent net uptake by the ecosystem.Back to article page