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Unformatted text preview: • The C horizon is the soil base above the parent bedrock. The major agricultural areas of the world are characterized by having soils called Chernozem soils, which are calcium-rich with lots of humus and loamy texture. Acid soils, such as the podzols of many conifer forests and the iron or aluminum-rich laterite soils of the tropics are not well suited to cultivation and form "Hard-Pan" with disturbance. High aluminum content in soils is also toxic to many roots....
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This note was uploaded on 01/08/2012 for the course BIO 213 taught by Professor Makina during the Fall '09 term at SUNY Stony Brook.
- Fall '09