Table 1 Douglas-fir stand variables and biomass (dry matter) measurements used to develop adjustment functions for the Forest Carbon Predictor
From: Plantation species-specific adjustment functions for the Forest Carbon Predictor in New Zealand
Site name and year planted | Gowan Hill 1998 | Southern Kaingaroa 1985 | Forest Creek 2000 | Forest Creek 1990 | Trig E 1965 | Trig E 1965 | Bridge Hill 1980 | Ribbonwood 1983 | Northern Kaingaroa 1982 | Whaka-rewarewa 1979 |
|---|---|---|---|---|---|---|---|---|---|---|
Elevation (m) | 254 | 790 | 786 | 737 | 1040 | 1040 | 900 | 500 | 367 | 440 |
Stand age (years) | 10 | 21 | 9 | 19 | 15 | 28 | 13 | 10 | 28 | 31 |
Mean temperature (°C) | 9.8 | 9.4 | 8.0 | 8.2 | 8.0 | 8.0 | 8.0 | 8.5 | 11.9 | 12 |
Stocking rate (Trees ha−1) | 1186 | 1250 | 1419 | 1051 | 2700 | 2700 | 4350 | 1838 | 800 | 717 |
Basal area (m2 ha−1) | 24.8 | 52.6 | 12.0 | 37.9 | 39.8 | 100.0 | 40.0 | 21.6 | 55.5 | 46.7 |
Mean Top Ht (m) | 8.4 | 15.5 | 6.5 | 14.5 | 7.7 | 12.6 | 7.5 | 8.4 | 25.6 | 26.2 |
Volib (m3 ha−1) | 92.6 | 305 | 35.6 | 215 | – | – | – | – | 503 | 479 |
Foliage (t ha−1) | 18.0 | 12.8 | 15.3 | 17.6 | 16.2 | 24.7 | 17.7 | 17.8 | 12.0 | 8.6 |
Live branches (t ha−1) | 35.0 | 25.6 | 19.1 | 31.8 | 20.4 | 36.4 | 18.3 | 34.1 | 32.8 | 32.1 |
Dead branches (t ha−1) (na = with live) | 6.9 | 39.9 | 0.1 | 21.8 | na | na | na | na | 28.4 | 21.3 |
Reproductive parts (t ha−1) | – | – | – | – | – | – | – | – | – | – |
Stem wood (t ha−1) | 35.3 | 111.6 | 14.2 | 75.2 | 64.0 | 211.9 | 46.6 | 31.2 | 221.2 | 188.6 |
Stem bark (t ha−1) | 6.7 | 16.1 | 2.9 | 13.6 | 8.7 | 34.3 | 8.3 | 4.7 | 24.0 | 22.2 |
Aboveground biomass (t ha−1) | 101.9 | 205.9 | 51.5 | 160.0 | 109.6 | 307.2 | 90.9 | 87.8 | 318.4 | 272.7 |
Belowground biomass (t ha−1) | – | – | – | – | – | 118 | 29.9 | 31.8 | 57.5 | – |
Woody debris (t ha−1) | 0.0 | 0.0 | 0.0 | 0.0 | – | – | 0.0 | 0.0 | 9.7 | 18.3 |
Litter t ha−1) (ash-free) | 0.0 | 14.1 | 0.0 | 32.4 | 18.6 | 26.0 | 20.6 | 0.0 | 10.0 | 14.8 |
Soil (0–5 cm) C%/(N%-0.014) | 14.1 | 22.3 | 14.9 | 18.1 | 25.9 | 25.9 | 19.3 | 22.0 | 19.9 | 19.6 |