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Table 2 Partial correlation coefficients between the LAI and some stand attributes

From: Artificial neural network models predicting the leaf area index: a case study in pure even-aged Crimean pine forests from Turkey

 

LAI

N

BA

Dq

Hg

SI100

Density

Age

LAI

1

0.564a

0.371a

−0.294a

0.134ns

0.111ns

0.512a

− 0.294a

N

 

1

0.202a

−0.753a

−0.301a

− 0.292a

0.496a

− 0.552a

BA

  

1

0.296a

0.664a

0.610a

0.913a

0.292a

Dq

   

1

0.635a

0.583a

−0.005

0.757a

Hg

    

1

0.947b

0.380a

0.568a

SI100

     

1

0.315a

0.542a

Density

      

1

0.036ns

Age

       

1

  1. LAI: the Leaf Area Indices calculated for sample plots, N: the number of trees of stands, BA: the basal area (m2·ha−1), Dq: the quadradic mean diameter (cm), Hq: the quadratic mean height (m), SI100: the site index calculated at base age of 100, Age: the stand mean age. ns: non-significant, a: significant at the 0.01 level, b: significant at the 0.001 level