OBJECTIVE FORESTRY

FORESTRY

SOIL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cross-sectional view of soil
A
Profile
B
Horizon
C
Master Horizons
D
Leached
Explanation: 

Detailed explanation-1: -A soil profile is a vertical cross-section of the soil, made of layers running parallel to the surface. These layers are known as soil horizons. The soil is arranged in layers or horizons during its formation. These layers or horizons are known as the soil profile.

Detailed explanation-2: -A vertical section through different layers of the soil is called the soil profile. Each layer differs in feel (texture), colour, depth and chemical composition. These layers are referred to as horizons.

Detailed explanation-3: -Soils are named and classified based on their horizons. The soil profile has four distinct layers: 1) O horizon; 2) A horizon; 3) B horizon, or subsoil; and 4) C horizon, or soil base (Figure 31.2. 2). The O horizon has freshly decomposing organic matter-humus-at its surface, with decomposed vegetation at its base.

Detailed explanation-4: -Following are the 5 layers of soil: The topmost layer of soil is called humus. Topsoil is below humus. The subsoil is below the topsoil. Small rocks are weathered rocks below subsoil. Bedrock is the bed of newly formed rocks. Actual layers of soil.

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