Fig. 1. Topographic map of the agroforestry watershed with 0.5-m elevation interval contour lines (black lines, elevation values are in m units), agroforestry buffers (gray, trees + grass), and sampling region (superimposed box). A grass waterway (wide black) is located at the outflow end of the watershed. The inset maps show the location of Missouri in the United States and the location of the watershed in Knox County, Missouri (after Seobi et al., 2005).