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Table 2 Pearson correlation coefficients between soil nutrient contents and physical properties

From: Effects of three coniferous plantation species on plant‐soil feedbacks and soil physical and chemical properties in semi‐arid mountain ecosystems

  SOC TN TP TK \({\text{N}\text{H}}_{4}^{+}\)-N \({\text{N}\text{O}}_{3}^{-}\)-N AP AK Soil bulk density Soil capacity Total porosity
TN 0.98**           
TP 0.34 0.45          
TK –0.50 –0.44 –0.24         
\({\text{N}\text{H}}_{4}^{+}\)-N 0.81** 0.81** 0.18 –0.24        
\({\text{N}\text{O}}_{3}^{-}\)-N 0.72* 0.73* 0.28 –0.20 0.95**       
AP 0.92** 0.88** 0.17 –0.28 0.87** 0.81**      
AK 0.79* 0.83** 0.30 0.03 0.91** 0.88** 0.88**     
Soil bulk density –0.88** –0.91** –0.31 0.47 –0.82** –0.69* –0.71* –0.73*    
Soil capacity 0.95** 0.96** 0.27 –0.46 0.84** 0.73* 0.82** 0.78* –0.97**   
Total porosity 0.80** 0.87** 0.29 –0.25 0.69* 0.55 0.61 0.70* –0.95** 0.92**  
Capillary porosity 0.85** 0.84** 0.11 –0.20 0.95** 0.90** 0.91** 0.91** –0.79* 0.87** 0.71*
  1. ** indicates P < 0.01, * indicates P < 0.05