“…The natural ecosystems (PF and SF) presented higher Rn, ET, and EF and lower albedo, G, and H than did the anthropic ecosystems (PA and AG). A small are comparable to those obtained here (Culf et al, 1995;Shuttleworth, 1989;Souza, Rocha, Ribeiro, & Souza, 2010 Our results for G showed that AG had, on average, the highest values (96 W m −2 ), followed by PA (92 W m −2 ), SF (57 W m −2 ), and was a drought year; therefore, the land surface was subjected to drier conditions than in 2004. The mechanisms of interaction between solar radiation and canopy physiology, which are dependent by both the plant (i.e., stomatal conductance and the root networks, which exploit soil water) and environmental conditions (i.e., T air and vapour pressure deficit), are most likely to have a greater impact than water availability in ET over forests in this part of Amazonia (Albert et al, 2018;Christoffersen et al, 2014;de Oliveira et al, 2017;Rocha et al, 2004).…”