News tagged with soil erosion
Related topics: soil
Agricultural bacteria: Blowing in the wind
The 1930s Dust Bowl proved what a disastrous effect wind can have on dry, unprotected topsoil. Now a new study has uncovered a less obvious, but equally troubling impact of wind: Not only can it carry away soil particles, ...
May 09, 2012 |
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Soil erosion modeling: It's getting better all the time
About 50 years ago, scientists at the U.S. Department of Agriculture (USDA) devised the Universal Soil Loss Equation (USLE), a formula farmers could use to estimate losses from soil erosion. Agricultural Research ...
Apr 24, 2012 |
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Analysis raises atmospheric, ecologic and economic doubts about forest bioenergy
A large, global move to produce more energy from forest biomass may be possible and already is beginning in some places, but scientists say in a new analysis that such large-scale bioenergy production from ...
Apr 18, 2012 |
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Conservatism saved Iceland from catastrophe
The people of medieval Iceland survived disaster by sticking with traditional practices, an innovative new study suggests.
Space & Earth / Earth Sciences
Mar 22, 2012 |
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New insights: How soil production processes respond to erosion
In many ways, soil is fundamental to life. Flora and fauna depend on its presence for their survival as much as they depend on water and air. In order to sustain its soil content, an ecosystem needs to maintain ...
Feb 08, 2012 |
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A novel strategy to reduce farm runoff will be tested starting in Minnesota
Minnesota will be the nation's first test site for a novel federal program designed to stem the flow of agricultural pollution that is strangling some of the country's great waterways, including the Chesapeake Bay, the Gulf ...
Jan 17, 2012 |
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Alaskan lake bed cores show expanding Arctic shrubs may slow erosion
The relationship between permafrost, Arctic vegetation, soil erosion, and changing air temperatures is complicated at best. For instance, rising temperatures melt surface permafrost layers and increase shrub growth. These ...
Space & Earth / Earth Sciences
Dec 31, 2011 |
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Reclaiming the land after a forest fire
Wildfires cause tragic losses to life, property, and the environment. But even after the fire rages, the damage is far from done. Without vegetation, bare, burnt soil lies vulnerable to erosion, which can impede efforts towards ...
Dec 22, 2011 |
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Improved rainwater harvesting system promising
Ridge and furrow rainwater-harvesting (RFRH) systems with mulches were first researched in the flat, lowland, semiarid conditions of northwest China to improve water availability and to increase crop production. ...
Dec 13, 2011 |
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Research improves cold-hardy wheat
(PhysOrg.com) -- With global demand for wheat exceeding 20 billion bushels a year, producers need more high-yielding crops that can survive in the extreme climate of the Canadian Prairies.
Dec 06, 2011 |
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UN warns 25 pct of world land highly degraded
(AP) -- The United Nations has completed the first-ever global assessment of the state of the planet's land resources, finding in a report Monday that a quarter of all land is highly degraded and warning the trend must be ...
Nov 28, 2011 |
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Long-Term carbon storage in Ganges basin may portend global warming worsening
(PhysOrg.com) -- Woods Hole Oceanographic Institution (WHOI) scientists have found that carbon is stored in the soils and sediments of the Ganges-Brahmaputra basin for a surprisingly long time, making it likely ...
Space & Earth / Earth Sciences
Nov 09, 2011 |
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Patented method transforms digital cameras for aerial color infrared photography
The U.S. Department of Agriculture (USDA) and David Linden, a technical consultant currently serving as a chief scientist at Science Applications International Corporation (SAIC) in McLean, Va., have jointly ...
Sep 26, 2011 |
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Forests under threat from exotic earthworm invasion
It is widely acknowledged that human beings are largely responsible for the widespread alteration of ecosystems on the planet. A recent study by Dara Seidl and Peter Klepeis of Colgate University in New York traces the ways ...
Sep 01, 2011 |
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Corn yields with perennial cover crop are equal to traditional farming
Soil quality, water quality, and possibly even farm profits will all benefit by using a perennial cover crop on corn fields that allows for similar yields to traditional farming methods, according to Iowa ...
Jul 25, 2011 |
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