Difference between revisions of "Erosion (USDA)"
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| − | '''Erosion''' is the wearing away of the [[land]] surface by running water, waves, or moving ice and wind, or by such processes as mass wasting and corrosion (solution and other chemical processes). The term "geologic erosion" refers to natural erosion processes occurring over long (geologic) time spans. "Accelerated erosion" generically refers to erosion that exceeds what is presumed or estimated to be naturally occurring levels, and which is a direct result of human activities (e.g., cultivation and logging). | + | '''Erosion''' is the wearing away of the [[land]] surface by running water, waves, or moving ice and wind, or by such processes as [[mass wasting]] and [[corrosion]] (solution and other chemical processes). The term "geologic erosion" refers to natural erosion processes occurring over long ([[geologic]]) time spans. "Accelerated erosion" generically refers to erosion that exceeds what is presumed or estimated to be naturally occurring levels, and which is a direct result of human activities (e.g., [[cultivation]] and [[logging]]). |
==References== | ==References== | ||
[http://www.nrcs.usda.gov/technical/NRI/1997/summary_report/glossary.html List of USDA terminology] <br> | [http://www.nrcs.usda.gov/technical/NRI/1997/summary_report/glossary.html List of USDA terminology] <br> | ||
[[Category:Geology]] | [[Category:Geology]] | ||
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{{USDA_Terms}} | {{USDA_Terms}} | ||
Revision as of 23:10, October 3, 2008
Erosion is the wearing away of the land surface by running water, waves, or moving ice and wind, or by such processes as mass wasting and corrosion (solution and other chemical processes). The term "geologic erosion" refers to natural erosion processes occurring over long (geologic) time spans. "Accelerated erosion" generically refers to erosion that exceeds what is presumed or estimated to be naturally occurring levels, and which is a direct result of human activities (e.g., cultivation and logging).