Table 9. M. glyptostroboides’s allometric equations by tree components and the highest R²(Compared with Model I and Model III).

Species	Tree component(Y)	Y=a(DBH)b	R2	Best equation(Compared with Model I and Model III)	R2
M. glyptostroboides	Volume (m3/tree)	Y=0.000539(DBH)1.876	0.821	Y=0.000539(DBH)1.876	0.821
	Stem wood (kg)	Y=0.437(DBH)1.528	0.820	Y=0.437(DBH)1.528	0.820
	Stem bark (kg)	Y=0.118(DBH)1.254	0.707	Y=6.102×(-0.342)(DBH)×0.014(DBH2)	0.888
	Stem (kg)	Y=0.540(DBH)1.495	0.822	Y=0.540(DBH)1.495	0.822
	Branches (kg)	Y=0.569(DBH)1.290	0.704	Y=73.750×(-5.540)(DBH)×0.158(DBH2)	0.878
	Foliage (kg)	Y=1.414(DBH)0.679	0.679	Y=12.803×(-0.429)(DBH)×0.016(DBH2)	0.750
	Roots (kg)	Y=0.746(DBH)1.315	0.860	Y=34.664×(-1.651)(DBH)×0.091(DBH2)	0.871
	Aboveground (kg)	Y=1.679(DBH)1.315	0.826	Y=69.251×(-3.010)(DBH)×0.191(DBH2)	0.865
	Total (kg)	Y=2.422(DBH)1.316	0.882	Y=103.915×(-4.661)(DBH)×0.282(DBH2)	0.895