Biomass Modelling of Androstachys johnsonii Prain: A Comparison of Three Methods to Enforce Additivity

Table 10

t-test for the restriction imposed for weighted NSUR.

Restriction	Parameter estimate	Standard error	value
Res1	−3162.70	356.20	−8.88	<0.0001
Res2	−210.46	23.76	−8.86	<0.0001
Res3	−4392.79	489.80	−8.97	<0.0001
Res4	−178.30	19.99	−8.92	<0.0001
Res5	−150.95	16.78	−9.00	<0.0001
Res6	−6811.46	732.60	−9.30	<0.0001
Res7	−20.27	2.19	−9.25	<0.0001
Res8	−17.20	1.85	−9.31	<0.0001
Res9	−877.64	94.86	−9.25	<0.0001
Res10	−111.99	12.20	−9.18	<0.0001
Res11	−84.74	8.80	−9.63	<0.0001

Note: res1 to res11 are the restrictions imposed to each of the 11 regression coefficients in the total tree model, as stated in (5).