Table 1 Information of sampling sites
Sampling site | LA Low altitude | MA Middle altitude | HA High altitude | SUN Sunny slope | SHA Shady slope |
|---|---|---|---|---|---|
Latitude (N) | 46° 39′ 46.29″ | 46° 43′ 17.99″ | 46° 43′ 58.09″ | 46° 39′ 56.47″ | 46° 39′ 37.38″ |
Longitude (E) | 129° 03′ 27.26″ | 129° 01′ 29.75″ | 128° 59′ 08.36″ | 129° 06′ 01.57″ | 129° 03′ 39.66″ |
Elevation (m) | 286 | 461 | 600 | 305 | 302 |
Slope steepness (°) | 12 | 12 | 13 | 16 | 14 |
Slope aspect (°) | South by east 19 | South by east 23 | South by east 20 | South by east 16 | North by east 29 |
Soil | Dark brown soil | Dark brown soil | Dark brown soil | Dark brown soil | Dark brown soil |
Average DBH (mean ± SE, cm) | 22.85 ± 0.66 | 28.05 ± 0.31 | 28.66 ± 0.79 | 24.64 ± 0.69 | 33.10 ± 0.80 |
Number of total samples (n) | 95 | 64 | 63 | 83 | 85 |
Number of samples for chronology (n) | 87 | 60 | 56 | 77 | 65 |