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Table VI
Parameters of the vector autoregressive model of tree growth based on standard growth chronologies.
| Stand | Series | Parameter | Estimate | Error | t-value | Pr > | t | | R-square |
|---|---|---|---|---|---|---|---|
| 150-year-old | Radial | constant | 0.24 | 0.11 | 2.3 | 0.0251 | 0.26 |
| Jul(t) | 0.03 | 0.01 | 5.2 | 0.0001 | |||
| iD(t − 1) | 0.27 | 0.07 | 3.8 | 0.0002 | |||
| iH(t − 2) | 0.08 | 0.04 | 2.3 | 0.0217 | |||
| Height | constant | 0.61 | 0.21 | 2.9 | 0.0048 | 0.33 | |
| Jul(t − 1) | 0.06 | 0.01 | 5.9 | 0.0001 | |||
| Jul(t − 2) | –0.04 | 0.13 | –3.3 | 0.0013 | |||
| iH(t − 1) | 0.39 | 0.07 | 5.3 | 0.0001 | |||
| iD(t − 2) | –0.32 | 0.14 | –2.2 | 0.0293 | |||
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| 50-year-old | Radial | constant | 0.78 | 0.15 | 5.1 | 0.0001 | 0.39 |
| Jul(t) | 0.02 | 0.01 | 3.3 | 0.0019 | |||
| Jul(t − 2) | –0.02 | 0.01 | –2.6 | 0.0249 | |||
| iH(t − 2) | 0.15 | 0.06 | 2.3 | 0.0312 | |||
| Height | constant | –0.30 | 0.13 | –2.2 | 0.0312 | 0.68 | |
| Jul(t − 1) | 0.09 | 0.01 | 9.9 | 0.0001 | |||