Fig. 1 The USDA textural triangle. The vector V extending from point A parallel to the positive y-axis crosses one edge of the "sandy loam" polygon; therefore, point A is inside the polygon. Points B and C are borderline cases explained in the text
Fig. 1 The USDA textural triangle. The vector V extending from point A parallel to the positive y-axis crosses one edge of the "sandy loam" polygon; therefore, point A is inside the polygon. Points B and C are borderline cases explained in the text