3.2.2.2 Correlation analysis of main soil fungal and environmental factors in H. rhamnoides forests
We used the Pearson correlation coefficient to analyze the correlation between bacterial phyla and soil environmental factors in fungal communities. The results of the analysis are illustrated by a heatmap in Figure 6. The figure shows that the soil environment has little effect on the biomass of the fungal population. Ichthyosporea and Ciliophora were positively correlated with soil environmental factors, Ascomycota was negatively correlated with TP, Cercozoa was negatively correlated with TN and AN, and Glomeromycota was negatively correlated with TK.
Generally speaking, compared with the bacterial community, the Pearson correlation between the fungal community and soil environmental factors is lower in H. rhamnoides forest; that is, environmental factors have a greater impact on bacteria than on fungi. Conversely, the number of species of bacteria in the soil under the H. rhamnoides forest is higher than is that of fungi, which may be why there are more bacteria in the bacterial community that are related significantly to environmental factors.