Cultivated soils tend to have lower levels of soil organic carbon than comparable soils under vegetation because of human activities.
- However, agricultural practices greatly accelerate erosion whether by water, wind or even tillage practices themselves
- Soil organic carbon tends to be concentrated in the topsoil
- Soils containing greater than 12–18% organic carbon are generally classified as organic soils
- Human activities have caused massive losses of soil organic carbon.
- The use of fire, which removes soil cover and leads to immediate and continuing losses of soil organic carbon. Tillage and drainage both expose soil organic matter to oxygen and oxidation
- Grazing management that exposes soil can also cause losses of soil organic carbon, which does not happen in soils under natural vegetation.
Thus we can conclude that cultivated soils tend to have lower levels of soil organic carbon than comparable soils under vegetation
learn more about organic farming at https://brainly.com/question/5695985
#SPJ4
