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Table 6 Pearson correlations between oak-related and site-related variables

From: Annual and spatial variabilities in the acorn production of Quercus mongolica

  Variable No. of stems Stand DBHa Trap DBHa Stand BAa Elevation Slope Soil depth Soil A depth Soil water content
Pearson correlation Stand DBHa − 0.770         
Trap DBHa − 0.613 0.809        
Stand BAa 0.280 0.287 0.137       
Elevation − 0.415 0.517 0.409 0.189      
Slope 0.006 0.002 0.067 0.074 − 0.316     
Soil depth 0.048 0.063 0.068 0.060 0.179 0.080    
Soil A-layer depth 0.017 0.013 0.123 0.016 0.212 0.012 0.023   
Soil water content 0.255 0.110 0.185 0.119 0.225 0.198 0.018 0.247  
Soil OMa 0.121 0.008 0.084 0.044 0.248 0.064 0.105 0.473 0.510
p value Stand DBHa 0.000         
Trap DBHa 0.000 0.000        
Stand BAa 0.080 0.073 0.401       
Elevation 0.008 0.001 0.009 0.243      
Slope 0.972 0.991 0.681 0.650 0.047     
Soil depth 0.768 0.700 0.675 0.714 0.269 0.625    
Soil A-layer depth 0.916 0.936 0.448 0.924 0.188 0.942 0.888   
Soil water content 0.113 0.500 0.252 0.463 0.164 0.221 0.910 0.125  
Soil OMa 0.456 0.959 0.607 0.788 0.122 0.695 0.517 0.002 0.001
  1. Stand DBH average oak DBH in stand, Trap DBH average oak DBH by trap, Stand BA oak basal area in stand, Soil OM soil organic matter,
  2. alog10-transformed, p < 0.05 in bold