“…The Amazon rainforest has a significant impact on both water and carbon cycles, due to its enormous extension (~ 5.1 × 10 6 km 2 ) and the high amount of carbon stored in its vegetation, about 86 Pg (Saatchi, Houghton, Alvalá, Soares, & Yu, 2007). Tree growth can be defined as the increase of biomass through time and it is often estimated by measuring the increment of stem diameter over time -a proxy of biomass gains at the ecosystem level (Wagner, Rossi, Stahl, Bonal, & Herault, 2012;Wagner et al, 2014;Dias & Marenco, 2016;Antezana-Vera & Marenco, 2020). As tree growth is greatly affected by factors that affect photosynthesis, sun-induced fluorescence -a proxy of ecosystem photosynthesis has been used to estimate the effect of environmental factors on total carbon gain of the ecosystem (Lee et al, 2013;Yang et al, 2018;Green et al, 2020).…”