From: Effects of site, silviculture and seedlot on wood density and estimated wood stiffness in radiata pine at mid-rotation
Stratum
Percentage of variation attributable to each stratum
DBH
Stress-wave velocity
Outerwood density
Site
27.1
32.9
41.4
Rep within site
0.00
Plot within rep
44.9
26.1
13.4
Tree within plot
28.0
41.0
45.2