Allometric Equations for Estimating Silk Oak (Grevillea robusta) Biomass in Agricultural Landscapes of Maragua Subcounty, Kenya

Table 15

Allometric equations for estimating BGB using HT.

Function	Equation	MRE	R^2	SEE
Exponential	BGB = 0.631e^0.269HT	-6.22	0.53	2.26
Logarithmic	BGB = 70.7ln(HT) - 133.3	-0.04	0.93	0.79
Polynomial	BGB = -0.067HT^2 + 4.781HT–32.58	0.15	1	0.71
Linear	BGB = 6.009HT–43.45	0.10	0.64	23.52
Power	BGB= 0.006HT^3.241	5.84	0.80	31.34