Table 1 Bivariate correlation between soil nutrients and altitude, and the partial correlations of soil nutrients and altitude as vegetation type, soil type and the combined influence of vegetation and soil types were controlled for, respectively.

From: Decoupling of nutrient element cycles in soil and plants across an altitude gradient

Soil nutrients

Variable controlled for

r

p

N

None†

0.013

ns

Vegetation type#

0.003

ns

Soil type$

0.056

ns

Combined influence&

0.014

ns

P

None†

0.225

*

Vegetation type#

0.147

ns

Soil type$

0.159

ns

Combined influence&

0.138

ns

  1. Note: r is correlation coefficient; p is significance of correlation analysis; * and ns means p < 0.05 and p > 0.05, respectively; †is the bivariate correlation between soil nutrients and altitude; #, $ and & represent the partial correlations of soil nutrients and altitude as vegetation type, soil type and the combined influence of vegetation and soil types were controlled for, respectively.
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