Soil Formation

Importance of Soil

Above and Below Factors Influencing Soil

Soil Types Around the World Put These in Order from Most Fertile To Least!

1. Tropical Rainforest

2. Desert

3. Temperate Deciduous

A. 1, 2, 3

B. 3, 1, 2

C.3, 2, 1

D. 1, 3, 2

The abundance of rain causes leaching of nutrients in the rainforest!

http://www.soils4teachers.org/around-the-world

What’s the Order?• Which of the following puts the horizons in

order of formation?1. C, B, A

2. A, B, C

3. C, A, B

4. B, C, A

Soil Concerns• Soil Degradation

• The loss of some or all of the ability of soils to support plant growth.

• Erosion remove topsoil which contains vital nutrients.

Main cause of degradation is soil erosion!

Soil Concerns• Soil Compaction

• Typically caused by machinery and humans.