Appendix C. Pearson correlation matrix with two-tailed significance test.

Pearson correlation matrix with two-tailed significance test

Appendix A. Study unit features: summary of dominant study unit features. Mean values and ranges are shown for annual precipitation, air temperatures, and study site basin area.

Study unit features: summary of dominant study unit features. Mean values and ranges are shown for annual precipitation, air temperatures, and study site basin area

Appendix D. Total standardized effects of basin cropland and riparian forested wetland on nutrients in the national and regional SEMs.

Total standardized effects of basin cropland and riparian forested wetland on nutrients in the national and regional SEMs