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  1. Soil structure refers to the aggregation of primary soil particles into compound particles that are separated from adjoining aggregates by surfaces of weakness. Soil structure is classified in terms of grade or distinctness (weak, moderate, strong), class or size (fine, medium, coarse, very coarse), and type (granular, platy, prismatic, blocky).

    • Chapter 16

      The approximate equivalents of the soil horizons and taxa in...

    • Manual

      The Canada Soil Information System (CanSIS): Manual for...

    • Third Edition

      The Canadian System of Soil Classification, 3rd ed. 1998...

  2. Jan 20, 2024 · The most popular methods of soil classification are the Unified Soil Classification System (USCS) and AASHTO Method. This article discusses the use of the USCS soil classification system and the typical range of engineering properties for different soil groups.

  3. Oct 5, 2020 · How are intrusive and obtrusive alike? Intrusive and obtrusive have very similar meanings. They both involve inserting oneself into a situation, especially without being welcomed or invited.

  4. Abrupt textural change.—A diagnostic soil characteristic of mineral soils defined as a considerable increase in silicate clay content within a short vertical distance (<7.5 cm) between the epipedon and an underlying argillic, kandic, glossic, or natric subsoil horizon. The required clay increase varies depending on the clay content of the epipedon.

  5. The meaning of OBTRUSIVE is forward in manner or conduct. How to use obtrusive in a sentence. Synonym Discussion of Obtrusive.

  6. Soils are dynamic and diverse natural systems that lie at the interface between earth, air, water, and life. They are critical ecosystem service providers for the...

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  8. noticeable in a way that is unpleasant or unwanted: The soldiers wore civilian clothes to make their presence less obtrusive. (Definition of obtrusive from the Cambridge Academic Content Dictionary © Cambridge University Press)

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