图2. 单播和混播处理中, 土壤细菌和真菌各门水平优势菌群相对丰度比较。A, 细菌门水平优势类群相对丰度。B, 真菌门水平优势类群相对丰度。En, 垂穗披碱草; Fo, 羊茅; Fs, 中华羊茅。图中*表示与单播与混播处理间该菌群相对丰度的差异显著(p < 0.05)。其他细菌包括装甲菌门、衣原体门、绿弯菌门、蓝藻门、迷踪菌门、厚壁菌门、芽单胞菌门、硝化螺旋菌门等16个细菌门类; 其他真菌包括壶菌门、球囊菌门以及3种未知真菌门共5个真菌门类。

Fig. 2. Relative abundance of dominant phyla of soil bacteria and fungi in single- and mixed-sowing plots, with significant difference between them (p < 0.05) indicated by *. A, Dominant phyla of bacteria. B, Dominant phyla of fungi. En, Elymus nutans; Fo, Festuca ovina; Fs, F. sinensis. Others of bacteria include Armatimonadetes, BRC1, Candidatus_Saccharibacteria, Chlamydiae, Chloroflexi, Cyanobacteria, Elusimicrobia, Firmicutes, Gemmatimonadetes, Ignavibacteriae, Latescibacteria, Nitrospirae, Parcubacteria, Unclassified_Bacteria, candidate_division_WPS-1 and candidate_division_WPS-2. Others of fungi include Chytridiomycota, Glomeromycota and three uclassified fungi phyla.