Figure 2
From: Coupling of soil prokaryotic diversity and plant diversity across latitudinal forest ecosystems
Relationships between tree (a,b)/herb (c,d) diversity and soil prokaryotic diversity as determined using Spearman’s correlation coefficient, with x axes showing plant diversity while y axes showing prokaryotic diversity. Both richness (a,c) and beta diversity (b,d) indices were employed. Bray-Curtis and unweighted Unifrac distances were used as the measurement of plant and prokaryotic beta diversity, respectively. Correlations of beta diversity were calculated using the first axis of principal coordinates score. Colors of points indicate the latitude (red, <20 °N; yellow, 20 to 30 °N; green, 30 to 40 °N; blue, 40 to 50 °N; purple, >50 °N).
