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Table 5 Models tested to estimate BEF

From: Biomass expansion factor and root-to-shoot ratio for Pinus in Brazil

MODELS FITTED TO BEF

MODELS FITTED TO R

1

B E F = β 0 * D B H - β 1

1

R = β 0 * D B H - β 1

2

B E F = β 0 * H - β 1

2

R = β 0 * H - β 1

3

B E F = β 0 * A G E - β 1

3

R = β 0 * A G E - β 1

4

BEF = β0 + β1*Ln(DBH)

4

R = β0 + β1*Ln(DBH)

5

BEF = β0 + β1*Ln(H)

5

R = β0 + β1*Ln(H)

6

BEF = β0 + β1*Ln(AGE)

6

R = β0 + β1*Ln(AGE)

7

B E F = β 0 * E X P - β 1 * D B H

7

R = β 0 * E X P - β 1 * D B H

8

B E F = β 0 * E X P - β 1 * H

8

R = β 0 * E X P - β 1 * H

9

B E F = β 0 * E X P - β 1 * A G E

9

R = β 0 * E X P - β 1 * A G E

10

BEF = β0 + β1 * DBH + β2 * H + β3 * AGE

10

R = β0 + β1 * DBH + β2 * H + β3 * AGE

11

BEF = β0 + β1 * ln(DBH * H * AGE)

11

R = β0 + β1 * ln(DBH * H * AGE)

12

BEF = β0 + β1 * ln DBH + β2 * DBH + β3 * lnH + β4 * ln(DBH * H * AGE)

12

R = β0 + β1 * ln DBH + β2 * ln H

  1. where: βi = coefficients.