Spatial and Temporal Biogeography of Soil Microbial Communities in Arid and Semiarid Regions
Figure 5
Higher differences in environmental parameters cause higher differences in community structure.
Each point in the graph represents a comparison between two samples: the X axis depicts the difference between the two samples with respect to the following environmental parameters in soils: OM – organic matter; Clay – clay percentage; Saturation – water saturation; km – geographic distance between the samples in kilometers; the Y axis is the significance of the dissimilarity (MRPP tests' P-value) between bacterial communities from the two samples. Trend lines are R2>0.8 for all environmental parameters. Values under the ‘0.05 line’ signify two bacterial communities that are significantly different (P<0.05).