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

Table 14

Allometric equations for estimating AGB using HT.

Function	Equation	MRE	R^2	SEE
Exponential	AGB = 2.454e^0.263HT	-24.37	0.54	7.44
Logarithmic	AGB = 240.1ln(H) – 452.6	0.084	0.93	2.48
Polynomial	AGB= -0.312HT^2 + 14.11HT- 98.72	0.24	0.99	2.10
Linear	AGB= 22.55HT-148.50	0.02	0.70	2.12
Power	AGB= 0.027HT^3.174	7.93	0.82	2.86