Important Upcoming Dates Sept 16-17 Australasia Chapter's ' Short Course' September 16-17, 2002 Auckland, New Zealand more Sept 18 Sign up now for NPDES in Columbus, NJ more details Sept 27 Hurry, the entry deadline for the Awards of Environmental Excellence is around the corner! more This site is viewed best by Internet Explorer 5.0. If you are using Netscape you need 5.0 or higher. Free ...

Member counties and Soil and Water Conservation Districts include: Brown, Cottonwood, Lincoln, Lyon, Murray, Pipestone, Redwood and Yellow Medicine. About RCRCA Position Announcement Cottonwood River RCRCA News Annual Reports Redwood River Calendar Canoe Trips Coffee on the Project State Cost Share Kid's Corner TMDL's Citizen Stream Monitoring Recent Rain Images Links Canoeing Information ...

Predicting soil erosion using the WEPP model for forest applications ...

The Demonstration Erosion Control (DEC) project investigates the effectiveness of reducing erosion, sedimentation, and flooding. DEC takes an innovative approach by considering an entire watershed, rather than only local characteristics and problems. The results from DEC research preserve farmland and wildlife habitat, protect people from floods, and save money. Follow the links below to learn ...

Soil erosion is a natural process. It becomes a problem when human activity causes it to occur much faster than under natural conditions. DID YOU KNOW * Annual soil loss in South Africa is estimated at 300 - 400 million tonnes, nearly three tonnes for each hectare of land. * Replacing the soil nutrients carried out to sea by our rivers each year, with fertilizer, would cost R1000 million. * For ...

Chemical agricultural practices are contributing to global warming, climate change, weather pattern disruption, erosion, and starvation. Organic agriculture must relpace chemical food production. Hemp replenishes the soil, reduces use of trees and fossil fuels, and reverses erosion damage.

Software for Environmental Awareness Serving Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin and 35 Tribes Contact Us | Print Version Search: EPA Home SEAHOME title Titles Topics Audiences CD-ROMs Frequently Asked Questions What's New About the Software Links Best Management Practices for Soil Erosion This program uses graphics and hypertext to provide information about soil erosion.

Soil Quality Environmental and Economic Costs of Soil Erosion and Conservation Benefits excerpts from Science Magazine Vol. 267, February 1995 In the article, Pimentel et al say: Soil erosion is a major environmental threat to the sustainability and productive capacity of agriculture. During the last 40 years, nearly one-third of the worlds arable land has been lost by erosion and continues to ...

Soil Erosion in Agricultural Systems Soil erosion in agricultural systems is a very important problem to manage. The productive layer of dirt is called the humus or topsoil. If this layer is eroded away, then the ground is very unproductive in producing crops. Soil can be eroded away by wind and water. High winds can blow away loose soils from flat or hilly terrain. Water erosion generally ...

Some serious erosion areas in the United States The colored areas on the map below, which show total tons of sheet and rill erosion on cropland, indicate several of the more serious erosion areas in the country. Cropland Sheet and Rill Erosion: 1977 Total for United States is 2, 000, 000, 000 Data for Alaska not available 1 dot = 250, 000 tons * The Palouse, covering parts of Washington, Oregon, and ...

Photo: A diversion terrace breaking up surface runoff from the upper field to the lower one. Diversion terraces, grassed waterways, surface inlets, and hedgerows are the most common structures used for soil conservation by Island farmers. A drive by many fields will show abundant use of these methods. Diversion terraces are used where the slope length of a field is greater than the accepted ...