Search results for land application
Biosolids microbes pose manageable risk to workers
Oct 27, 2008 |
3.7 / 5 (3) |
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Class B biosolids are sewage sludges that have been treated to contain fewer than 2.0 x 106 fecal coliforms/dry gram. The USEPA estimates that 6.3 million tonnes of Class B biosolids are generated in the United States each ...
Dioxin risk in soil and plant tissues after long-term biosolids application
Jul 14, 2008 |
3.8 / 5 (4) |
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Land application of biosolids (treated municipal sewage sludge) is a common practice because biosolids are a rich source of plant nutrients and organic matter. However, the presence of detectable levels of dioxins in biosolids ...
Study of agricultural watersheds and carbon losses
Jun 19, 2009 |
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Dissolved organic carbon (DOC) losses from tile drains are an underquantified portion of the terrestrial carbon cycle. This is particularly important in the eastern corn belt where tile drainage dominates the agricultural ...
New study predicts future consequences of a global biofuels program
Oct 22, 2009 |
5 / 5 (3) |
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A report examining the impact of a global biofuels program on greenhouse gas emissions during the 21st century has found that carbon loss stemming from the displacement of food crops and pastures for biofuels ...
Journal highlights forest service early warning system
Dec 13, 2009 |
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A national early warning system designed to assist land managers in rapidly detecting threats to forest health is featured in the cover article of the October 2009 issue of Photogrammetric Engineering and Remote Sensing (PE&RS), ...
R&D 100 Award for new NIST/UMD neutron detector
Jul 10, 2008 |
5 / 5 (1) |
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A new ultrasensitive, high bandwidth neutron detector developed by the National Institute of Standards and Technology (NIST) and the University of Maryland (UMD) will receive one of this year's "R&D 100 Awards," ...
Tropical birds waited for land crossing between North and South America: study
Dec 09, 2009 |
3.8 / 5 (4) |
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Despite their ability to fly, tropical birds waited until the formation of the land bridge between North and South America to move northward, according to a University of British Columbia study published this ...
Ultra-fine coatings on sediment grains influence nitrate and sulfate storage in soil
Feb 23, 2009 |
5 / 5 (1) |
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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 ...
Models simulate nitrate dynamics in Garonne, Southwest France
Jan 05, 2009 |
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The over-enrichment of fresh, transitional, and marine waters with nitrogen (N) can lead to problems associated with eutrophication, such as a change in species composition of aquatic plants and nuisance algal blooms. In ...
River delta areas can provide clue to environmental changes
May 11, 2009 |
3 / 5 (4) |
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Sediments released by many of the world's largest river deltas to the global oceans have been changed drastically in the last 50 years, largely as a result of human activity, says a Texas A&M University researcher who emphasizes ...
Study on land plant fossils shows Paleoasian Ocean disappeared about 251 million years ago
Space & Earth / Earth Sciences
Dec 08, 2009 |
4.3 / 5 (3) |
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A latest discovery of land plant fossils from Heilongjiang, Northeast China shows that the Siberian Plate sutured with the North China Plate at the end of the Permian, and resulted in the final closure of the Paleoasian Ocean ...
Replacing corn with perennial grasses improves carbon footprint of biofuels
Biology /
Dec 02, 2008 |
4.6 / 5 (12) |
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Converting forests or fields to biofuel crops can increase or decrease greenhouse gas emissions, depending on where – and which – biofuel crops are used, University of Illinois researchers report this month.
Understanding phosphorus in soils is vital to proper management
Feb 04, 2009 |
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Phosphorus is one of the key nutrients that can cause algal blooms and related water quality problems in lakes, rivers, and estuaries worldwide. Phosphorus entering waters originates from a variety of sources. Agricultural ...
'Look Ma, No Parachute!' Lunar Lander Floats on Electric-blue Jets
Space & Earth / Space Exploration
Oct 15, 2009 |
3.9 / 5 (15) |
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How do you fly on a world with no atmosphere? Wings won't work and neither do propellers. And don't even try that parachute!
Google Earth Application Maps Carbon's Course
Space & Earth / Earth Sciences
Sep 21, 2009 |
2.9 / 5 (16) |
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(PhysOrg.com) -- Sometimes a picture really is worth a thousand words, particularly when the picture is used to illustrate science. Technology is giving us better pictures every day, and one of them is helping ...
