FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Solum
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Regolith
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Saprolite
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Liholith
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Detailed explanation-1: -This horizon is also called the subsoil. The combined O‐A‐B section is sometimes called the solum. Known as the “true soil, ‘’ the solum is where most of the biological activity in soil is confined. The C horizon is the lowest soil layer and lies directly above the bedrock.
Detailed explanation-2: -The combined A and B horizons are called the solum, sometimes the “true soil.” Together they form the major part of a profile. They are also direct results of the processes by which soils are formed. All of the master horizons may be subdivided in the scientific study of soils.
Detailed explanation-3: -Layers of Soil. The soil profile is composed of a series of horizons or layers of soil stacked one on top of the other. These layers or horizons are represented by letters O, A, E, C, B and R.