What is arrangement of soil in different layers or horizons known as?a)Soil Compositionb)Soil Erosionc)Soil Profiled)Soil TextureCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

Soil Profile
The soil is found in layers, which are arranged during the formation of soil. These layers called horizons, the sequence of layers is the soil profile. The layers of soil can easily be observed by their color and size of particles. The main layers of the soil are topsoil, subsoil and the parent rock. Each layer has its own characteristics.

Answer

The arrangement of soil in different layers of horizon is soil profile it may be of the type a,b,cetc

Answer

Soil Profile

Soil profile refers to the arrangement of soil in different layers or horizons. It is a vertical section of the soil that shows the different layers of soil from the surface down to the parent material. Each layer has distinct characteristics that are influenced by various factors such as climate, vegetation, topography, and time.

The soil profile can be divided into several horizons or layers, each with its own unique properties and composition. These horizons are labeled using letters, with the topmost layer being labeled as 'O' horizon and subsequent layers labeled as 'A', 'B', 'C', and 'R' horizons.

1. O Horizon:
The O horizon is the topmost layer of the soil profile and is composed mainly of organic matter such as decomposed leaves, plant debris, and humus. It is dark in color and rich in nutrients.

2. A Horizon:
Also known as the topsoil, the A horizon is the layer immediately below the O horizon. It is rich in organic matter and minerals and is the most fertile layer of the soil profile. This layer is crucial for plant growth as it contains essential nutrients, water, and microorganisms.

3. B Horizon:
The B horizon, also called the subsoil, is located below the A horizon. It is characterized by the accumulation of minerals such as iron, aluminum, and clay. This layer acts as a reservoir for nutrients and water, which can be accessed by plant roots.

4. C Horizon:
The C horizon is the layer of weathered parent material. It consists of partially weathered rock fragments and minerals. This layer is relatively less affected by biological activity and is usually harder and less fertile than the upper layers.

5. R Horizon:
The R horizon is the bedrock or unweathered parent material. It is the layer that lies beneath all the other horizons and is composed of solid rock or consolidated material.

The arrangement of these horizons in the soil profile provides valuable information about the soil's fertility, drainage, water-holding capacity, and nutrient content. Understanding the soil profile is essential for agricultural practices, land management, and environmental assessments. By analyzing the different layers, scientists and farmers can make informed decisions regarding soil conservation, crop selection, and irrigation techniques.

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