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Soil descriptions

Two basic concepts are used in developing the naming of different soils. First is the idea that a soil s characteristics will determine which group it falls into and its name. Another idea is that soils will be related to a reference soil. In both cases, the natural soil horizons are used in the soil description. In Soil Taxonomy, horizons used for naming the soil are called diagnostic horizons. In the reference soils, the horizons are called reference horizons. The general concepts are similar in all systems, and so are many names for soil characteristics. The names are often descriptive in that they give an idea of the characteristic of the soil. [Pg.56]

State soils description. Available at http //soils.usda.gov/technical/classification/. Accessed June 3, 2013. [Pg.60]

During soil survey operations, numerous soil profile descriptions, and large amounts of laboratory data, are generated for the soils that are being mapped. Generally, the soils being described, sampled, and analyzed are representatives of soil series, the most detailed (and restrictive) classification of soils in the USA. There are —2.1 X 10" soU series that have been identified and mapped in the USA. The locations, soil descriptions, and... [Pg.2288]

General soil description Unified soil classification Compaction characteristics Recommended compaction equipment... [Pg.64]

Guide to Site and Soil Description for Hazardous Waste Site Characterization Volume 1, Metals... [Pg.90]

The extent of the area with acid soil was assessed by auger holes and control profiles. In the area, two profiles at 12 m from each other were opened to about 40 cm from a stem of Erica arborea. The soil description according to the... [Pg.80]

I AEG, 1981. Rock and soil description and classification for engineering geological mapping. Int. Assoc. Eng. Geol. Bulletin. 24 235-274. [Pg.38]

Most soils consist of more than one grade size type. If boulders and cobbles are present in composite soil types, then they are removed before an attempt is made at classification, their proportions being recorded separately. Their presence should be recorded in the soil description. Very coarse deposits should be described as boulders if over half of the very coarse material is of boulder size. They may be described as cobbly boulders if cobbles are an... [Pg.206]

According to Anon (1999), further factors that should be incorporated in a soil description, to help identification of soil, include the following ... [Pg.207]

Anon. 1986. Guide to Rock and Soil Descriptions. Geoguide 3. Geotechnical Control Office, Government Publication Centre, Hong Kong. [Pg.553]

I. Poorly evoluted soils Description soils with a AC profile characterized by a weak alteration of the underlying bedrock and a low content of organic matter. ... [Pg.955]

III. Calci-magnesian soils Description soils forming onto calcareous and dolomious rocks. The humification process is initially stopped by the presence of calcium or magnesium carbonates. The profile is rich in fresh organic matter. ... [Pg.955]

IV. Isohumic soils Description biological introduction of organic matter deeper in the profile and stabilization by a climatic action. ... [Pg.955]

See other pages where Soil descriptions is mentioned: [Pg.194]    [Pg.9]    [Pg.41]    [Pg.174]    [Pg.268]    [Pg.46]    [Pg.54]    [Pg.935]    [Pg.201]    [Pg.290]    [Pg.57]    [Pg.57]    [Pg.83]    [Pg.179]    [Pg.180]   
See also in sourсe #XX -- [ Pg.57 ]



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