Fig. 5. Boxplots showing the distribution of the annual total nitrogen yields for 42 interior basins, 1980–1996. Dashes (-) show the median yields for several sites where other statistics could not be computed
Fig. 5. Boxplots showing the distribution of the annual total nitrogen yields for 42 interior basins, 1980–1996. Dashes (-) show the median yields for several sites where other statistics could not be computed