Yes topsoil has more fertility and humus than subsoil.
Topsoil has higher fertility compared to subsoil. Topsoil contains most of the organic matter, nutrients, and microbial activity that support plant growth, while subsoil typically has lower organic matter content and nutrient availability.
Topsoil has higher fertility than subsoil because it contains a higher concentration of organic matter, nutrients, and microorganisms that support plant growth. These components break down and enrich the topsoil, making it more conducive to plant root development and nutrient uptake. Subsoil, on the other hand, is typically less fertile and lacks the same level of organic matter and biological activity found in the topsoil.
topsoil
topsoil
Topsoil has more organic material.
by earthworms in it
topsoil is near the roots of trees and subsoil is underneath the roots of trees
They are both made with the same substance but the topsoil has newer soil than the subsoil.
by the way there are sunlight in human and in soil. ************ Topsoil will contain more humus (notice the spelling!) than subsoil. Topsoil is the layer where most household gardening and food production on farms takes place. The subsoil could be solid clay, which would make the topsoil rather wet after a heavy rain. Or even solid bedrock, with a thin layer of topsoil on top - not really suitable for growing deep rooted plants.
Topsoil is the uppermost layer of soil that contains organic matter and is crucial for plant growth. Subsoil is the layer beneath topsoil that is lower in organic matter and contains more minerals. Bedrock is the solid rock layer beneath subsoil that serves as the parent material for soil formation.
Topsoil is darker than subsoil and saprolite because it contains more organic matter from decomposed plant and animal material. This organic matter adds dark color to the soil and makes it richer in nutrients, which is why topsoil is often more fertile than subsoil and saprolite.
The layer of soil lacking humus and fertility is called the subsoil. Subsoil is usually low in organic matter and nutrients, making it less suitable for plant growth compared to topsoil. It often requires amendments or management practices to improve its fertility.