Variables Non-Standard regression coefficient Non-Standard regression coefficient Standard regression coefficient
B SE Beta t Sig.
Roughness 0.132 0.012 0.673 10.637 P < 0.001
DBH (cm) 0.004 0.001 0.156 2.977 P = 0.003
SDT (cm) -0.002 <0.001 -0.407 -7.807 P < 0.001