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Forest Ecosystems

Table 2 Estimates for the fixed parameters and random components of Equation 1

From: Ingrowth, survival and height growth of small trees in uneven-aged Picea abies stands in southern Finland

Fixed effects

Parameter

Estimate

Standard error

t-value

p-value

β 0

-2.53262

0.04859

-52.13

< 0.0001

β 1

0.93862

0.01089

86.16

< 0.0001

β 2

16.39989

0.71418

22.96

< 0.0001

β 3

0.41721

0.03633

11.48

< 0.0001

β 4

-0.33940

0.07008

-4.84

< 0.0001

β 5

1.36607

0.06074

22.49

< 0.0001

Random forest stand effects

 

u 0

u 1

  

u 0

4.1320 × 10-3

-0.487

  

u 1

-9.9498 × 10-4

1.0102 × 10-3

  

Random errors

 

e

   

e

5.0258 × 10-2

   
  1. Estimates for random forest stand effects comprise variances (diagonal), covariances (lower triangle) and correlations (upper triangle), whereas random errors are specified by a variance estimate.
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