Unified Soil Classification System - Wikipedia
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 …
Soil Classification | Natural Resources Conservation Service
The Official Soil Series Description (OSD) database is a national collection of more than 20,000 detailed soil series descriptions. These descriptions, in a text format, serve as a national …
Soil - Texture, Structure, Composition | Britannica
Jan 2, 2026 · The two principal systems of soil classification in use today are the soil order system of the U.S. Soil Taxonomy and the soil group system, published as the World Reference Base …
Unified Soil Classification System (USCS): With 3 Major Divisions
Aug 4, 2024 · A unified classification of soils is the most commonly adopted classification system of soil for engineering purposes. It is, in fact, the universally accepted soil classification system.
The Unified Soil Classification System uses a two-letter system to name different soil types. The chart below also includes a plasticity chart that is used to determine the classification of fine …
Soil classification | FAO SOILS PORTAL | Food and Agriculture ...
Soil Classification concerns the grouping of soils with a similar range of properties (chemical, physical and biological) into units that can be geo-referenced and mapped.
Soil classification – Introduction to Soil Science
Different systems have been developed in different countries, so in this section we will cover the basics of the classification system commonly used in the US, as well as the younger world …