Soil Profile and Succession

The tropical rainforest is made up of a variety of topsoil, clay, and rock.  The topsoil is a mixture of leaves, branches, vines.  Many plants prospor because of the good nutrients found within the soil.  The clay found beneath the topsoil lots of moisture and runoff water leaves behing small particles that form clay.  The next layer is the rock, it doesn't provide nutrients to plants.  The rock found beneath the clay breaks down quickly.  The cause of this break down is the heavy rainfall that occurs in the tropical rainforest.  If succession didn't occur in my biome there wouldn't be variety in the types of plants and the rainforest wouldn't strive and become new.  If grass and shrubs didn't succeed to become big strong trees animals that live in trees wouldn't exist and there wouldn't be any forests.  There would just be a huge field of grass.  Secondary succession has occured in the tropical rainforest because of deforestation.  Farmers have cut down trees for farmland and when the crops were gone and the farmers left secondary succession began to regrow the rainforest.

 

Difference Between Primary and Secondary Succession 

Primary succession is succession that takes place in an area where there is no soil currently present.  Secondary succession is succession that takes place in an area where there is already soil currently present.

 

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