Tuesday, December 1, 2009

Soil Erosion by Devonte

we learned all about the diffrent horizons. There are Organic, Topsile, Subsoil, Bedrock.Organic is the top horisons. Then there is topsoil. Then it is subsoil and after is finally bedrock.I also learned about the diffrent soil structure. There are diffrent type of soil structure like single grain, blocky, platy, granular, prismatic, and massive. Single grain is the most rapid and massive is the slowest of all six of them.

Terns

Soil Erosin is when soil is moving.
Detachment is when soil detaches from the rest of the soil.
Rill is where water finds a place to run,its also just a small brook.
Gully is a small valley.
Slope is what water goes down when it breaks a part the soil.

Qustions

What is the diffrence between a Rill and Gully?
Why is soil so important to learn about?
What are the four soil profile horizones?






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