. Elements of ecology. Ecology. The Soil Profih 81. Photo U. S. Soil Conservation Service Fig. Vertical cut through fine sandy loam supporting blue-stem grass at Red Plains Experiment Station, Guthrie, Oklahoma. A Horizon, ft (0-30 cm): grayish brown fine sandy loam. B Horizon, ft (30-75 cm): reddish sandy clay. C Horizon ft (75-95 cm): weathered parent material. D Horizon below ft: laminated sandstone and shale. greatly from place to place and change with time in the same region as the soil matures. A varying number of subdivisions of each hori- zon are recogniz
. Elements of ecology. Ecology. The Soil Profih 81. Photo U. S. Soil Conservation Service Fig. Vertical cut through fine sandy loam supporting blue-stem grass at Red Plains Experiment Station, Guthrie, Oklahoma. A Horizon, ft (0-30 cm): grayish brown fine sandy loam. B Horizon, ft (30-75 cm): reddish sandy clay. C Horizon ft (75-95 cm): weathered parent material. D Horizon below ft: laminated sandstone and shale. greatly from place to place and change with time in the same region as the soil matures. A varying number of subdivisions of each hori- zon are recognized in different situations with the result that a com- plete analysis of the soil profile becomes very complex. In many soils some of the subdivisions are entirely unrepresented, and in other soils strata of considerable thickness may be uniformly mixed. The general nature of the principal horizons and subdivisions are shown diagrammatically in Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Clarke, George L. (George Leonard), 1905-. New York, Wiley
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Keywords: ., bookcentury1900, bookpublishernewyorkwiley, booksubjectecology
