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Latest Erosion Stories

2010-11-10 00:53:23

U.S. Department of Agriculture (USDA) scientists in West Virginia are finding ways to improve soil on degraded land so it can be used for sports fields and other uses. Researchers with USDA's Agricultural Research Service (ARS) at the agency's Appalachian Farming Systems Research Center (AFSRC) in Beaver, W.Va., are developing constructed or replacement subsoils and topsoils to build better and less-costly sports fields, raingardens and lawns on former landfills, mine lands and other degraded...

2010-11-05 15:39:13

Estimating the long-term impact of agriculture on land is tricky when you don't have much information about what a field was like before it was farmed. Some fields in Missouri started producing crops more than a century ago"”long before anyone kept detailed records about the physical and chemical properties of the soil in a field. Researchers can't go back in time to revisit old fields in their pristine state, but a University of Missouri graduate student did perhaps the next best...

2010-10-19 20:40:36

Researchers say soil in southern Oregon forest remains threatened by practices used a half century ago Clear-cut logging and related road-building in the 1950s and 1960s in southern Oregon's Siskiyou Mountains disrupted soil stability and led to unprecedented soil erosion made worse during heavy rainstorms, report University of Oregon researchers. While logging practices have improved dramatically since then, the damaged landscape -- the removal of low vegetation that helps to protect...

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2010-09-01 12:50:00

An unmanned aircraft system guided by satnav has been developed within ESA's Business Incubation Centre to provide rapid monitoring of land areas and disaster zones. The planes have already helped Spanish farmers in Andalusia to fight land erosion. The German start-up company MAVinci has developed the new system that uses autonomous micro-air vehicles (MAVs) with a wingspan of less than two meters, to inspect land areas. "At the moment, the remote-sensing market uses mainly manned...

2010-06-17 14:51:30

Findings released during the annual Goldschmidt Conference at the University of Tennessee, Knoxville Humans need plants to survive, and plants need soil. But what happens when human, geological and climatic activity alters soil composition and structure and diminishes the amount of fertile land available? Erosion and weathering can hinder the soil's ability to maintain a nutritional balance -- a process crucial to maintaining life around the globe. "Our sustenance is all based on the soil,...

2010-05-19 09:25:16

Study finds benefits of cover crops in preventing soil erosion in the winter and the following year when compared to rough tillage Cover crops may be more effective at reducing soil erosion and runoff after maize harvest than rough tillage, according to scientists from the Universit© Catholique de Louvain, in collaboration with the Independent Center for the Promotion of Forage (CIPF).The three-year study, supervised by Charles Bielders and conducted by Eric Laloy, measured erosion and...

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2010-05-14 14:36:29

Computational modeling techniques provide new and vast opportunities to the field of archaeology. By using these techniques, archeologists can develop alternative computerized scenarios that can be compared with traditional archaeological records, possibly enhancing previous findings of how humans and the environment interact. An article published in the April 2010 issue of the journal American Antiquity by researchers at Arizona State University and North Carolina State University describes...

2010-05-04 13:00:00

Losses continue in farmland; Gains seen in permanent crops, wetlands, and stemming erosion DAVIS, Calif., May 4 /PRNewswire-USNewswire/ -- California mirrors national development trends that found that one third of all of the land ever developed in the lower 48 states has been developed in the last 25 years. The finding comes from the National Resources Inventory, a national land use survey released every five years. Results have just been released for the period 2002-2007. The NRI is...

2010-03-05 12:51:36

AgriLife Research ecologist: Careful management is the key The application of summer patch burning to heal native rangeland may be best accomplished using rotational grazing, according to a Texas AgriLife Research range ecologist. Dr. Richard Teague recently completed a study of native rangeland vegetation and soils subjected to summer patch burns followed by cattle being allowed to graze either continuously or using a rotational grazing system. Prescribed summer fire as a management tool is...

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2010-02-24 08:41:00

Sediments Frozen in Time Provide Clues Focusing on a controversial hypothesis that ice existed at the equator some 300 million years ago during the late Paleozoic Period, two University of Oklahoma researchers originated a project in search of clues to the Earth's climate system. "The Paleozoic Period was a rare time in history," says Gerilyn Soreghan, OU professor of geology. "Broadly speaking, it was the last time our planet experienced the type of climate system we have today and in the...


Latest Erosion Reference Libraries

Erosion
2013-04-01 12:48:39

Erosion is the process by which rock and soil are taken from the surface of the Earth by exogenetic processes like wind or the flow of water, and then transported and deposited in another location. While erosion is a natural process, human activities have increased by 10 to 40 times the rate at which erosion is happening globally. Excessive erosion results in problems such as desertification, decreases in agricultural productivity because of land degradation, sedimentation of waterways,...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'