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Topsoil - Definition and Overview |
| Related Words: Alluvium, Band, Bed, Bedding, Belt, Clay, Course, Crust, Deck, Dirt, Dust, Earth, Floor, Freehold, Gallery, Glebe, Grassland, Ground, Land, Layer, Ledge |
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Topsoil is the uppermost layer of soil, usually the top six to eight inches. It has the highest concentration of organic matter and microorganisms, and is where most of the Earth's biological soil activity occurs. Plants generally concentrate their roots in, and obtain most of their nutrients from this layer. Topsoil can be measured as the depth from the surface to the first densely packed soil layer known as hardpan.
A major environmental concern known as topsoil erosion, occurs when the topsoil layer is blown or washed away. Without topsoil, little plant life is possible.
A variety of soil mixtures are sold commercially as topsoil, usually for use in improving gardens and lawns.
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Example Usage of Topsoil |
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MzMonster: # Salt, sweat, sugar on the asphalt, our hearts littering the Topsoil..# |
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kimwilsonowen: congress-created dustbowl? to an outsider it looks like raking off Topsoil & choosing desert in which to farm created the dustbowl. sad. |
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BCClassifieds: Whistler>For Sale>Farm/Garden>6 YARDS OF NEVER USED Topsoil M... $200- http://openlist.ca/v.asp?msgid=715493&catid=312&subcatid=14440&c=19 |
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