Appendix B. Regression equations used for calculating specific leaf area (SLA) from sample height.
TABLE B1. Regression equations used for calculating specific leaf area (SLA) from sample height. SLA is projected area of fresh leaves (in square meters) over the oven-dry leaf mass of the same leaves (in kilograms). Samples were collected from trees with the deepest crowns in each stand. Each N represents two sets of 20 needles each. Equations take the form of a + b • Height. P for all equations was < 0.0001.
|
Variable |
|
Height |
|
|
|
||
Stand |
a |
b |
|
Max |
Min |
|
N |
R2 |
|
|
|
|
|
|
|
|
|
Plantation |
8.2966 |
-1.5469 |
|
22.0 |
7.0 |
|
5 |
0.97 |
Martha Creek |
9.9389 |
-1.1382 |
|
44.0 |
15.0 |
|
7 |
0.96 |
Panther Creek |
10.7629 |
-1.0559 |
|
53.0 |
19.0 |
|
7 |
0.96 |
Ohanapecosh |
11.3616 |
-0.9823 |
|
63.0 |
15.0 |
|
8 |
0.98 |
Trout Creek |
8.4956 |
-0.6062 |
|
58.0 |
22.0 |
|
8 |
0.73 |
Carbon River |
10.7490 |
-0.6449 |
|
82.5 |
40.0 |
|
11 |
0.90 |
Cedar Flats |
8.1765 |
-0.2759 |
|
83.0 |
20.0 |
|
8 |
0.86 |