Free Access

Table III

Calibration equations for each leaf stage when the data from the four Quercus species were pooled. The equations convert the CCI value into the estimated total chlorophyll content per unit area (mg cm−2).

Leaf stage n Equation P r 2
Young leaves 120 Log(Chl) = –4.732 + 0.518 Log(CCI) < 0.0001 0.77
Fully expanded 120 Log(Chl) = –5.799 + 0.834 Log(CCI) < 0.0001 0.73
leaves
Mature leaves 120 Log(Chl) = –4.792 + 0.553 Log(CCI) < 0.0001 0.70