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Table 4 Regression equation for stump waste (m3 per stump) as a function of stem volume per stump and treatment

From: The effect of coppice management on stump volume recovery in mechanized operations

m3 waste = a stem + b Dummy D × stem

r 2 adj = 0.166; n = 1394; F = 140.010; p < 0.0001

 

Coeff

SE

T

p value

a

0.002

2.589 × 10−4

7.931

<0.0001

b

0.002

3.859 × 10−4

5.607

0.0044

  1. Where stem = m3 solid volume of the above-ground mass insisting on the stump (sum of two stems if a double-stemmed coppiced stump); Dummy D = indicator variable for coppice double stumps, =1 if double, = 0 if single or planted
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Annals of Forest Science

ISSN: 1297-966X