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Fig. 1. The USDA5 trajectories (five solid lines) and percent rocks (broken lines) are used to display the relationships of ten physical and chemical water properties (WPs) from the Environmental Monitoring and Assessment Program of Surface Waters (EMAPSW) study with the whole-soil particle size distribution (PSD) statistics of intersected map units in the study region. The map units and WPs are presented in 17 groups. The number of map units in each group (A) and the mean WPs (B–K) are presented by colored markers. The circles on each trajectory are placed at the mean percent rock for the group
