Soil phase is a portion of a mixture that has: (1) differing properties from the contiguous material and (2) definite bounding surfaces (Fredlund and Rahardjo 1993).
Soil is a heterogeneous, multiphase, disperse, and porous system. It is built of four phases: solid, liquid, gaseous, and living phase composed of organisms that participate in soil metabolism. In unsaturated soils, additionally, the air-water interface as an independent phase (or contractile skin) is distinguished (Fredlund and Rahardjo 1993). Phases play a significant role in formation soil, physical properties, and processes. A typical example of the proportion of phases in mineral soils is shown in Figure 1. In organic soils, which are in minority (about 1.2% of the world land area), these proportions are other, to the advantage of organic matter (at least 30%).
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Explanation:
Soil phase is a portion of a mixture that has: (1) differing properties from the contiguous material and (2) definite bounding surfaces (Fredlund and Rahardjo 1993).
Soil is a heterogeneous, multiphase, disperse, and porous system. It is built of four phases: solid, liquid, gaseous, and living phase composed of organisms that participate in soil metabolism. In unsaturated soils, additionally, the air-water interface as an independent phase (or contractile skin) is distinguished (Fredlund and Rahardjo 1993). Phases play a significant role in formation soil, physical properties, and processes. A typical example of the proportion of phases in mineral soils is shown in Figure 1. In organic soils, which are in minority (about 1.2% of the world land area), these proportions are other, to the advantage of organic matter (at least 30%).