All data supporting manuscript entitled "hydraulic strategy reversal: emergent trees heavily rely on shallow soil water in a tropical seasonal rainforest"

Third, xylem water isotope data include hydrogen and oxygen isotope compositions for P. chinensis and P. pinnata across sampling months. Fourth, leaf carbon isotope data provide measurements of leaf δ¹³C for both species in the dry and wet seasons. Fifth, leaf water potential data include predawn and midday leaf water potentials for both species across seasons.

These data allow assessment of seasonal differences in sap flow, environmental controls on tree water transport, isotope-based plant water-source use, and interspecific differences in leaf-level water-use regulation. The dataset can be used to evaluate how emergent and canopy trees coordinate water uptake, hydraulic transport, carbon–water regulation, and plant water status under contrasting dry- and wet-season conditions in tropical seasonal rainforests.