Table 1 Descriptive statistics of Norway spruce experimental stands (n = 945) and trees
Parameter | Unit | Mean | Min | Max |
|---|---|---|---|---|
Elevation | m asl | 631.1 | 200 | 1246 |
Temperature (May–Sep) | °C | 11.2 | 6.1 | 16.3 |
Precipitation (May–Sep) | mm | 571 | 159 | 1613 |
Plot size | ha | 0.21 | 0.02 | 1.1 |
Stand age | a | 62 | 10 | 212 |
Number of trees | n/ha | 1510 | 101 | 71,233 |
\({H}_{100}\) | m | 24.6 | 3.6 | 42.6 |
Stand basal area | m2/ha | 41.4 | 0.4 | 81.3 |
Stand volume | m3/ha | 462.7 | 0.1 | 1404.6 |
\(\text{TVP}\) | m3/ha | 626.3 | 0.1 | 2022.6 |
Survey year | a | 1962 | 1872 | 2021 |
Period length | a | 5.2 | 0.8 | 25 |
Number of surveys | n | 5.8 | 2 | 19 |