Table 1 Summary information for the first and last measurements of the study plots
From: Evaluating Douglas-fir and western hemlock volume growth in response to thinning and fertilisation
| Â | Douglas-fir | Western hemlock | ||
|---|---|---|---|---|
| Â | First | Last | First | Last |
Total age (yrs) | 38 | 64 | 47 | 72 |
|  | (18 – 76) | (39 – 100) | (29 – 71) | (55 – 93) |
Ave. DBH (cm) | 16.4 | 24.2 | 22.0 | 32.7 |
|  | (4.5 – 46.2) | (11.4 – 49.7) | (8.2 – 45.5) | (10.0 – 57.3) |
Ave. height (m) | 16.0 | 23.3 | 24.2 | 34.1 |
|  | (3.9 – 38.3) | (11.3 – 41.2) | (11.0 – 41.1) | (12.4 – 46.6) |
SPH | 1651 | 1223 | 1753 | 925 |
|  | (240 – 4840) | (340 – 3580) | (243 – 7660) | (229 – 2400) |
Volume (m3/ha) | 277.2 | 660.8 | 607.2 | 1118.9 |
|  | (42.1 – 1087.0) | (241.7 – 1618.4) | (172.2 – 1515.3) | (546.5 – 1869.8) |
Age at thinning (yrs) | 37 | 46 | ||
|  | (15 – 73) | (28 – 68) | ||
Pre-thin volume (m3/ha) | 312.8 | 369.8 | ||
|  | (62.5 – 1126.4) | (248.0 – 1433.6) | ||
Volume removed (m3/ha) | 85.6 | 107.2 | ||
|  | (13.1 – 369.6) | (78.9 – 623.3) | ||
Site index (m) | 26 | 28 | ||
|  | (14 – 42) | (20 – 36) | ||
No. measurements | 7.3 | 7.1 | ||
|  | (4 – 9) | (3 – 8) | ||