Table 2.
Slope (m), intercept (b), and R of linearized relationship between applied pressure and 6 mm-diameter pellet density, and the estimated pressure for pellet density of 1200 kg/m³ for five Korean domestic wood species

Item	Wood species
	Populus davidiana	Quercus mongolica	Robinia pseudoacacia	Pinus densiflora	Pinus rigida
	m	0.076	0.066	0.061	0.033	0.024
b	6.556	6.618	6.651	6.862	6.922
R2	0.967	0.992	0.970	0.896	0.950
Pd(MPa)	111	133	136	97	127