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13 Cards in this Set
- Front
- Back
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no-till farming
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practice of leaving plant stalks in the field
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plowing
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mechanical turning and loosening of the soil
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contour farming
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planting along the narual shape of slopes of the land
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terracing
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building level areas into the sides of steep hills to grow crops
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overgrazing
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animals grazing until almost no ground cober remains
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forest harvesting
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removing forests and exposing the soil
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What is the top soil covered with?
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litter
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What is formation influences by?
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climat, slope, types of rock, types of vegtation and length of time that rock has been weathering
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hydrolesis
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chemical reacts with water with the substance
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where is humus found the most in?
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horizon A
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Horizon A
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organic matter, roots, worms, insects and other living organisms
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Horizon B
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some roots and other living organisms, materials leached by water from horizon A
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Horizon C
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materials leached by water from the B horizon, partly weathered rock fragments
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