Skip to main content

Table 3 Allometric models for estimating the above-ground woody biomass of Gliricidia

From: Allometric equations for estimating on-farm fuel production of Gliricidia sepium (Gliricidia) shrubs and Cajanus cajan (pigeon pea) plants in semi-arid Tanzania

Model no.

Regression coefficients

SEE

CF

p value

R2 (%)

AIC

a

b

c

1

23.548

2.805

 

*

*

**

87.0

**

2

0.060

1.587

 

*

*

**

73.8

**

3

2.928

2.202

0.482

*

*

**

88.8

**

4

3.427

2.540

 

0.207

1.022

 < 0.001

95.7

− 351

5

 − 6.117

2.159

 

0.330

1.059

 < 0.001

89.1

− 246

6

0.494

1.865

0.646

0.177

1.016

 < 0.001

96.9

− 386

7

 − 0.332

0.830

 

0.179

1.016

 < 0.001

96.8

− 384

  1. a, b, c are constant numbers
  2. *The SEE and CF are not relevant for non-linear regression models
  3. **The calculation of p values and AIC is not applicable for non-linear models
Back to article page

Energy, Sustainability and Society

ISSN: 2192-0567

Contact us