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| Description: Soil Profile Soil forming processes operate from the surface downward Horizons – zones or layers of soil Horizons in temperate regions O – organic matter A – organic and mineral matter E – little organic matter Eluviation Leaching B – zone of accumulation C – partially altered parent material Topsoil Zones O and A together Solum “True soil” O, A, E, B together Picture Stats: Views: 271 Filesize: 165.51kB Height: 921 Width: 588 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39427 |