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APPENDIX 9-5-3 (Cont.) <br /> Soil Profile Descriptions for all Sampled Pedons <br /> 9 Horizon Boundaries: Distinctness Topography <br /> A Abrupt (0 to 2 cm thick) S Smooth (The boundary is a plane with few or <br /> no irregularities) <br /> C Clear (2 to 5 cm thick) W Wavy (the boundary has undulations in which <br /> depressions are wider than they are deep) <br /> G Gradual (5 to 15 cm thick) I Irregular (the boundary has pockets that are <br /> deeper than they are wide) <br /> D Diffuse (15+ cm thick) B Broken (at least one of the horizons or <br /> layers separated by the boundary is <br /> discontinuous and the boundary is interrupted). <br /> 10 <br /> �n <br /> CD <br /> rn <br /> rn <br /> C <br /> r• <br /> CD <br /> CD <br /> a <br /> O <br /> l <br /> W <br />