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English: Graphic of a soil profile showing O, A, B, and C horizons. The depth numbers are approximately. The depth numbers are approximately. O ( 0" - 2" ): Organic
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Soil phase diagram showing soil composition. V is for volume, M is for mass. Subscripts s, w, and a stand for soil particles, water and air respectively. Subscripts v and t stand for voids and total respectively. Date: 9 June 2010, 11:05 (UTC) Source: Soilcomposition.png: Author: Derivative work: 5d7ygtr09h; Sjhan81
A soil profile is one face of a pedon, or an imaginary three-dimensional unit of soil that would display the full range of properties characteristic of a particular soil. Pedons generally occupy between 1 and 10 m 2 of surface land area and are the fundamental unit of field-based soil study. [9]
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Soil map from "Geography of Ohio," 1923. A soil map is a geographical representation showing diversity of soil types or soil properties (soil pH, textures, organic matter, depths of horizons etc.) in the area of interest. [1] It is typically the result of a soil survey inventory, i.e. soil survey.
Soil structure describes the arrangement of the solid parts of the soil and of the pore spaces located between them (Marshall & Holmes, 1979). [1] Aggregation is the result of the interaction of soil particles through rearrangement, flocculation and cementation.