Figure 2: Relationships between taxon richness, and key soil and climate variables.
From: Temperature mediates continental-scale diversity of microbes in forest soils

For all plots, the y axis is the taxon richness of observed OTUs for 16S, ITS or nifH data sets. Three plots in left showed the linear relationships between annual mean temperature (kelvin) and taxon richness of 16S, ITS and nifH, respectively, and three plots in right showed the relationships between pH and taxon richness. Line in each plot represents least squares regression fit and the shaded area represents its 95% confidence limits. The relationships of taxon richness with other soil and climate variables were seen in Supplementary Fig. 2. The relationships of microbial biodiversity (taxon richness, Shannon diversity and phylogenetic diversity) to all soil, climate and plants were summarized in Supplementary Table 6.