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Table 2 Stepwise multiple regression analyses between soil respiration (R s ) and soil temperature (T s ) and soil moisture (SM), showing changes in the regression coefficient, significance probability (p), coefficient of determination (R 2) and partial correlation coefficient

From: Response of soil respiration to experimental warming in a highland barley of the Tibet

Treatment Coefficient R 2 Partial correlation p
CK
 Constant 0.54    <0.001
 T s 0.05 0.43 0.65 <0.001
1000 W
 Constant 5.27    <0.001
 T s 0.06 0.24 0.75 <0.001
 SM 2.88 0.57 0.88 <0.001
2000 W
 Constant 5.43    <0.001
 SM 2.20 0.39 0.62 <0.001
  1. Natural logarithm transformations were made for R s and SM prior to regression analysis. CK: the control, 1000 W: the low warming treatment, and 2000 W: the high warming treatment. T s and SM coincided with R s