Living organisms provide nutrients for the soil.
Bacteria typically break down essential nutrients and return them to the soil. Sometimes fungi will break down essential nutrients and return them to the soil as well.
Detritivores decompose organic materials in an ecosystem and return the nutrients to the soil, air, and water.
Decomposers break down dead plants and animals. They return the nutrients to the soil.
Decomposers consume dead organisms and waste material. They then return nutrients and essential resources to the soil to be reused by the community.
consumers
Nutrients enter the soil when an animal dies and its body decomposes into the soil, or when a plant decomposes into the soil when it dies. And that pretty much creates nutrients. :P
Nutrients are constantly being passed between organisms and the environment. This happens when decomposers break down the dead organisms putting it back in the soil.
Decomposers
The soil is richer in nutrients.
Decomposers
Producersproducers