图5. 北京松山自然保护区不同干扰强度下土壤细菌群落LEfSe分析。
HD, 高干扰区; ND, 无干扰区。线性判别分析(LDA) > 0说明是ND的差异类群, LDA < 0说明是HD的差异类群; 根据LDA结果构建的进化树(门到种水平)。其中绿色节点代表该水平的细菌在ND组含量较高, 红色节点代表该水平的细菌在HD组含量较高, 草绿色节点代表细菌在组间无显著差异。

Fig. 5. LEfSe analysis of bacterial communities in different disturbance intensity groups in Beijing Songshan Nature Reserve.
HD, high disturbance group; ND, no disturbance group. Linear discriminant analysis (LDA) > 0 indicates biomarkers of ND, LDA < 0 indicates biomarkers of HD; the evolutionary tree (phylum to species level) is constructed according to the LDA results. Among them, the green nodes represent ND hold more abundant bacteria than other groups at this level, the red nodes represent HD hold more abundant bacteria than other groups at this level, and the green nodes represent that there is no significant difference between groups.