Fig. 6
a Effect of section diameter (on a log. base 10 scale) on leaf-specific conductivity (LSC) and b leaf hydraulic conductance (K l) for Douglas-fir and ponderosa pine trees from different aged stands. Each point represents the mean values for each height in the trees and at the base (whole tree). Dotted triangles represent branch samples. The lines in a and b were defined by the following equations: LSC = 1.7 × 10−4 D 0.6, and K l = 0.7lnD + 3.3, respectively, where D is the organ (stem or branch) diameter in cm