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  2. Unified Soil Classification System - Wikipedia

    en.wikipedia.org/wiki/Unified_Soil...

    The Unified Soil Classification System (USCS) is a soil classification system used in engineering and geology to describe the texture and grain size of a soil. The classification system can be applied to most unconsolidated materials, and is represented by a two-letter symbol. Each letter is described below (with the exception of Pt):

  3. Soil classification - Wikipedia

    en.wikipedia.org/wiki/Soil_classification

    Soil texture triangle showing the USDA classification system based on grain size Map of global soil regions from the USDA. For soil resources, experience has shown that a natural system approach to classification, i.e. grouping soils by their intrinsic property (soil morphology), behaviour, or genesis, results in classes that can be interpreted for many diverse uses.

  4. USDA soil taxonomy - Wikipedia

    en.wikipedia.org/wiki/USDA_soil_taxonomy

    About 1,000 soil subgroups are defined in the United States. [6] A soil family category is a group of soils within a subgroup and describes the physical and chemical properties which affect the response of soil to agricultural management and engineering applications. The principal characteristics used to differentiate soil families include ...

  5. University of Illinois Department of Civil and Environmental ...

    en.wikipedia.org/wiki/University_of_Illinois...

    The Department of Civil and Environmental Engineering (CEE) at the University of Illinois Urbana–Champaign, one of 12 departments within the University of Illinois College of Engineering, has been in existence for more than 140 years, since the year the university was founded.

  6. University of Illinois College of Agriculture, Consumer, and ...

    en.wikipedia.org/wiki/University_of_Illinois...

    The University of Illinois Urbana-Champaign's College of Agricultural, Consumer and Environmental Sciences (ACES) is part of the University of Illinois Urbana-Champaign. Most of the ACES buildings are located on the South Quad. In terms of staff, ACES has 186 tenure-system faculty, 78 specialized faculty, 26 postdoctoral researchers, 493 ...

  7. Morrow Plots - Wikipedia

    en.wikipedia.org/wiki/Morrow_Plots

    The Morrow Plots occupy a central position on the campus of the University of Illinois Urbana-Champaign (UIUC), between the Main Quad and the South Quad. They are bounded on the south by West Gregory Drive, the north by the Observatory, the east by the Woese Institute for Genomic Biology, and the west by the Undergraduate Library.

  8. Soil texture - Wikipedia

    en.wikipedia.org/wiki/Soil_texture

    Soil texture is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture can be determined using qualitative methods such as texture by feel, and quantitative methods such as the hydrometer method based on Stokes' law .

  9. Land Suitability classification - Wikipedia

    en.wikipedia.org/wiki/Land_Suitability...

    The Land Suitability Classification is a soil evaluation method, developed by FAO.FAO stated that Land suitability is the fitness of a given type of land for a defined use. The land may be considered in its present condition or after improvement