Biomass and Volume Models Based on Stump Diameter for Assessing Degradation of Miombo Woodlands in Tanzania

Table 6

Belowground biomass model coefficients and performance.

Site	Model forms	Model coefficients			AIC	SE	SE%	E%	R^2
		a	b	c
Tabora		0.0882	2.1386		222.8	87.69	44.05	-13.59	0.86
		-10.1727	0.1590		228.2	90.88	45.65	-13.31	0.85
		-5.8520	-0.3781	0.1651	230.2	89.98	45.2	-13.31	0.85
Manyara		0.1434	2.0144		199.6	122.52	39.72	-8.36	0.78
		0.7040	0.1546		199.0	122.12	39.59	-9.27	0.79
		-8.9545	1.9007	0.0945	196.2	141.96	46.02	-3.18	0.71
Lindi		0.08147	2.1896		211.2	180.71	37.18	-13.42	0.89
		0.1553	0.1454		212.6	259.78	53.45	6.15	0.77
		41.0525	-4.9379	0.25975	212.6	157.47	32.4	-10.84	0.91
Regional		0.1056	2.1035		623.5	154.01	46.5	-12.2	0.86
		-0.8040	0.1526		624.9	164.67	49.72	-11.41	0.84
		0.9476	-0.3688	0.1631	626.5	158.98	48.0	-12.04	0.85

Note: Bold type indicates selected model.