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Table 5 Random effects variance-covariance matrix of NSURMEM systems

From: Two new methods applied to crown width additive models: a case study for three tree species in Northeastern China

Random

effects

Larch

Birch

Poplar

bE

bS

bW

bN

bE

bS

bW

bN

bE

bS

bW

bN

bE

0.0003

0.0068

0.0002

0.0059

0.2513

0.1980

0.0276

− 0.3361

1.2032

− 0.4525

− 0.0027

0.0348

bS

 

0.1922

0.0054

0.1447

 

0.2503

0.1092

− 0.3587

 

0.3334

0.0118

− 0.0134

bW

  

0.0002

0.0060

  

0.1454

− 0.2642

  

0.0011

− 0.0012

bN

   

0.1902

   

1.0517

   

0.0018

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Annals of Forest Science

ISSN: 1297-966X