How deep is the A horizon for prairie vegetation?

How deep is the A horizon for prairie vegetation?

• A. 5-7 inches
• B. 7-10 inches
• C. 10-12 inches
• D. 12-14 inches

Answer: (B)

The A horizon for prairie vegetation typically ranges from 7 to 10 inches in depth. This layer, often referred to as the topsoil, is rich in organic matter and is crucial for supporting plant growth in prairie ecosystems. The thickness of this horizon is influenced by several factors including the type of vegetation, climate, and soil formation processes. In the context of prairie regions, the A horizon is particularly significant because it contains essential nutrients and supports the diverse plant communities typical of these ecosystems. A deeper A horizon allows for better moisture retention and nutrient availability, which are vital for sustaining prairie species. Thus, the specified range accurately reflects the characteristics observed in prairies, aligning with soil profiles typically found in these environments.

The A horizon for prairie vegetation typically ranges from 7 to 10 inches in depth. This layer, often referred to as the topsoil, is rich in organic matter and is crucial for supporting plant growth in prairie ecosystems. The thickness of this horizon is influenced by several factors including the type of vegetation, climate, and soil formation processes.

In the context of prairie regions, the A horizon is particularly significant because it contains essential nutrients and supports the diverse plant communities typical of these ecosystems. A deeper A horizon allows for better moisture retention and nutrient availability, which are vital for sustaining prairie species. Thus, the specified range accurately reflects the characteristics observed in prairies, aligning with soil profiles typically found in these environments.