![]() ![]() This is the method presented in this publication. Department of Agriculture (Soil Survey Staff, 1951, 1960, 1962). The method most widely used and accepted is that developed during the mapping of soils since 1899 by the U.S. Many different methods are used for describing and studying soils (Clarke, 1957 Smyth, 1965 Nikol'skii, 1959 Low, 1954 Taylor and Pohlen, 1962 Brewer and Sleeman, 1963). As soil mapping is based on landscape occurrence of the same or similar soil profiles, it is important to realize that a soil profile description represents an actual area of soil (pedon or segment of the landscape), although a soil profile description is normally made in a single vertical cut, pit, or trench. Laboratory investigations only supplement understanding of soil profile descriptions made in the field. A soil profile is a vertical cut exposing the various parts of the soil. The basis for classification and understanding soils is the soil profile description made in the field, where soils occur. Soil differences dictate that the soils must be managed differently and will behave differently when used for agriculture, forestry, sewage disposal, foundations, pavements, and other things. The differences may range from very striking texture variations to more subtle minor variations of color. ![]() In some cases minor changes in organization and grammar were made, with no change in content of the subject matter. In most cases parts of this text were taken directly from the cited references. Cline (Cline, 1964), and from many other sources. Department of Agriculture (USDA), including the Seventh Approximation and Soil Taxonomy (Soil Survey Staff, 1960, 1970, 1973), the Soil Survey Manual (Soil Survey Staff, 1951) and Supplement (Soil Survey Staff, 1962), from notes and outlines of Dr. This work was compiled from sources describing official procedures of the Soil Conservation Service (SCS) of the U.S. This publication provides these people with a single reference for the mechanics of making and interpreting a soil profile description. Thus, public health officials investigating septic tank seepage fields, planners of developing urban areas, extension service workers, highway and construction engineers, students beginning training in soils, and many others need to be able to understand the different soils they encounter in their work (Olson, 1974). Soil profile descriptions often need to be interpreted and used by people with no extensive experience in working with the soil survey. This is, in general, the original text as published. ![]() Originally published in 1976 as Kansas Geological Survey Bulletin 212. Kansas Geological Survey, Bulletin 212, originally published in 1976Ĭriteria for Making and Interpreting A Soil Profile Description A Compilation of the Official USDA Procedure and Nomenclature for Describing Soils by Gerald W. 212-Criteria for Making and Interpreting A Soil Profile Description ![]()
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