highly significantp < 0.01
Soil available potassium showed the highest correlation in both bacteria and fungi, with a total of 21 genera of bacteria significantly correlated ( p < 0.05), including nine genera with highly significant positive correlation ( p < 0.01), four genera with significant positive correlation ( p < 0.05), five genera with highly significant negative correlation p < 0.01) and four genera with significant negative correlation ( p < 0.05) ( Figure 5A ); 19 genera of fungi were significantly correlated ( p < 0.05), including 14 genera that were significantly positively correlated ( p < 0.05) and 5 genera that were highly significantly positively correlated p < 0.01) Figure 5B ).