3.2.1.2 Correlation analysis of main soil bacteria 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 bacterial communities. The results of the analysis are illustrated by a heatmap in Figure 3. The figure shows that TOC, AN, EP, and AK have a strong influence on the content of bacteria in soil. The dominant populations, Gemmatimonadetes, Nitrospirae, and Actinobacteria, were negatively correlated with TOC, AN, EP, and AK. Gracilibacteria, Parcubacteria, and WS2 were positively correlated with TOC, AN, EP, and AK.