News tagged with unsaturated zone
Ultra-fine coatings on sediment grains influence nitrate and sulfate storage in soil
Tiny sediment grains are covered with a very fine-grained, complex mixture of minerals in an open fabric that results in a large surface area in contact with water between the grains. Scientists at the U.S. Geological Survey ...
Feb 23, 2009 |
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Search results for unsaturated zone
Scientific research reveals brain alterations linking omega 3 deficit with depression
The link between deficits of omega-3 poly-unsaturated fatty acids (AGPO-3) and the onset of depressive disorders is not new in the medical field. However, what has not been known until now is the brain mechanism by which ...
Medicine & Health / Neuroscience
Feb 04, 2011 |
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Restoring coastal wetlands? Check the soil
Rising sea levels and coastal development are threatening coastal freshwater wetlands with saltwater intrusion. While most ecosystem restoration projects have focused on surface water and groundwater, new ...
Sep 07, 2010 |
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Large amounts of nitrogen stored beneath selected agricultural areas
Large amounts of nitrogen are stored in the soils of agricultural areas in Nebraska and Maryland, according to a new study by the U.S. Geological Survey (USGS) and the U.S. Department of Agriculture (USDA). Once in the soil, ...
May 03, 2010 |
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Pesticides persist in ground water
Numerous studies over the past four decades have established that pesticides, which are typically applied at the land surface, can move downward through the unsaturated zone to reach the water table at detectable concentrations. ...
Jul 01, 2008 |
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Holistic understanding: Ag chemicals in the environment
An understanding how environmental processes and agricultural practices interact to determine the transport and fate of agricultural chemicals in the environment is essential for effectively addressing the widespread degradation ...
Jun 03, 2008 |
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Using ground-penetrating radar to observe hidden underground water processes
To meet the needs of a growing population and to provide it with a higher quality of life, increasing pressures are being placed on the environment through the development of agriculture, industry, and infrastructures.
Space & Earth / Earth Sciences
Mar 20, 2008 |
3.5 / 5 (8) |
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List of search results for unsaturated zone
