Species-Specific Shifts in Diurnal Sap Velocity Dynamics and Hysteretic Behavior of Ecophysiological Variables During the 2015-2016 El Nino Event in the Amazon Forest.

ABSTRACT: Current climate change scenarios indicate warmer temperatures and the potential for more extreme droughts in the tropics, such that a mechanistic understanding of the water cycle from individual trees to landscapes is needed to adequately predict future changes in forest structure and function. In this study, we contrasted physiological responses of tropical trees during a normal dry season with the extreme dry season due to the 2015-2016 El Niño-Southern Oscillation (ENSO) event. We quantified high resolution temporal dynamics of sap velocity (V_s), stomatal conductance (g_s) and leaf water potential (Ψ_L) of multiple canopy trees, and their correlations with leaf temperature (T_leaf) and environmental conditions [direct solar radiation, air tempera

SUBMITTER: Gimenez BO 

PROVIDER: S-EPMC6611341 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature