Table 1 Radius of the plots established at each sampling point of the National Forest Inventory, diameter at breast height (dbh) threshold, as well as the expansion factor to values per hectare of each plot
From: National scale variability in forest stand variables among regions of provenances in Spain
Plot radius (m) | dbh threshold | Expansion factor |
|---|---|---|
5 | dbh ≥ 7.5 cm | 127.32 |
10 | dbh ≥ 12.5 cm | 31.83 |
15 | dbh ≥ 22.5 cm | 14.15 |
25 | dbh ≥ 42.5 cm | 5.09 |