extremely significantp < 0.01
Correlation Analysis Between Nutrient Contents and Stoichiometric Characteristics of Different Components of Main Shrubs and Herbs in Karst Forests As shown in Figure 5 , for the stoichiometric characteristics of shrub leaves, the positive correlation groups were as follows: C content was significantly ( p < 0.05) positively correlated with C/K (r = 0.54); there were significant ( p < 0.05) or extremely significant ( p < 0.01) positive correlations between N content and P (r = 0.68), Ca (r = 0.62), and Mg (r = 0.60) contents, as well as between P content and Ca (r = 0.67) and Mg (r = 0.46) contents; K content was extremely significantly ( p < 0.01) positively correlated with K/P (r = 0.73); Ca content was significantly ( p < 0.05) or extremely significantly ( p < 0.01) positively correlated with Mg (r = 0.79), N/K (r = 0.61), and Ca/Mg (r = 0.47).