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

Table 11

Allometric equations for estimating branch biomass using DBH.

Function	Equation	MRE	R^2	SEE
Exponential	BR = 4.644e^0.069Dbh	11.72	0.93	0.75
Logarithmic	BR = 10.56ln(DBH) +1.534	0.02	0.84	0.72
Polynomial	BR = 0.077DBH^2 + 3.373DBH +0.213	- 4.53	0.99	0.58
Linear	BR = 0.941DBH+ 13.24	0.03	0.96	0.73
Power	BR = 1.901DBH^0.793	11.59	0.99	0.73s