The Universal Soil Loss Equation (USLE) is a widely used mathematical model that describes soil erosion processes.
Erosion models play critical roles in soil and water resource conservation and nonpoint source pollution assessments, including: sediment load assessment and inventory, conservation planning and design for sediment control, and for the advancement of scientific understanding. The USLE or one of its derivatives are main models used by United States government agencies to measure water erosion.
The USLE was developed in the U.S. based on soil erosion data collected beginning in the 1930s by the USDA Soil Conservation Service (now the USDA Natural Resources Conservation Service). The model has been used for decades for purposes of conservation planning both in the United States where it originated and around the world, and has been used to help implement the United States' multi-billion dollar conservation program. The Revised Universal Soil Loss Equation (RUSLE) continues to be used for similar purposes.
Read more about Universal Soil Loss Equation: Overview of Erosion Models, Description of USLE, See Also
Famous quotes containing the words universal, soil, loss and/or equation:
“Of lower states, of acts of routine and sense, we can tell somewhat; but the masterpieces of God, the total growths and universal movements of the soul, he hideth; they are incalculable. I can know that truth is divine and helpful; but how it shall help me I can have no guess, for so to be is the sole inlet of so to know.”
—Ralph Waldo Emerson (1803–1882)
“Green, green is El Aghir. It has a railway station,
And the wealth of its soil has borne many another fruit:
A mairie, a school and an elegant Salle de Fetes.
Such blessings, as I remarked, in effect, to the waiter,
Are added unto them that have plenty of water.”
—Norman Cameron (b. 1905)
“And what greater calamity can fall upon a nation than the loss of worship? Then all things go to decay. Genius leaves the temple to haunt the senate or the market.”
—Ralph Waldo Emerson (1803–1882)
“A nation fights well in proportion to the amount of men and materials it has. And the other equation is that the individual soldier in that army is a more effective soldier the poorer his standard of living has been in the past.”
—Norman Mailer (b. 1923)