Root discrimination and vapor buffering control mangrove lipid hydrogen isotope fractionation to resolve the greenhouse-field paradox

This dataset includes the concentrations of n-alkanes and n-fatty acids, as well as the stable hydrogen and oxygen isotopic compositions (δ²H and δ¹⁸O) of various water sources associated with the mangrove species Sonneratia apetala, sampled during the peak wet season. The analyzed water pools include surface water (SW), xylem water (XW), and leaf water (LW). The dataset highlights isotopic fractionation associated with key physiological stages: water uptake from surface water to xylem (αXW-SW), transpiration between leaf and xylem water (αLW-XW), and lipid biosynthesis between mangrove waxes (n-fatty acids and n-alkanes) and leaf water (αLipid-LW). Additionally, it presents the apparent net fractionation between mangrove lipids and surface water (αLipid-SW).