Table 2.
Growth fitting and comparisons among defoliation category (control, moderately, and heavily defoliated).
| Parameter | C-tree | M-tree | H-tree | |
|---|---|---|---|---|
| A | 54.16 2.64 | 34.33 1.72 | 21.191.60 | |
| β | 7.23 1.66 | 5.14 0.98 | 5.79 1.68 | |
| κ(10) | 4.20 0.97 | 3.07 0.60 | 3.32 0.99 | |
| r | 0.56 | 0.26 | 0.17 | |
| Statistics | Growth curve fitting | Comparison of defoliation level | ||
| df (v1,-v2) | 3, 81 | 3, 86 | 3, 86 | 8, 250 |
| F-value | 252.24 | 337.77 | 136.72 | 36.67 |
| P-value | 0.001 | <0.001 | 0.001 | 0.001 |
A, β, and κ represent the fitted parameters of the Gompertz function, r indicates a weighted mean absolute rate (r, cell.da-1). Each F- and P-values are presented for growth response curves, fitted to the number of cells. An F-value was calculated among defoliation levels to compare non-linear tree-ring growth (see Methods).