Fig. 2

Differences of bacterial community compositions across summer and winter sampling locations. Non-metric multidimensional scaling (nMDS) plot of the Bray-Curtis dissimilarity for microbial communities of recycled sand samples colleted in (A) summer and (B) winter. Each dot represents the bacterial community of a single sample and are colored by location. Ellipses represent standard error around centriod of each location and are colored by location. Surface and 7-in samples are not differentiated as no differences were found between them across locations (P > 0.05). Stress: A = 0.07, B = 0.052