News tagged with nitrogen cycle
Greenhouse gas emissions study under way by AgriLife Research
Texas AgriLife Research scientists in Amarillo are embarking on a new study amid recent concerns over greenhouse gas emissions from crop fertilization, tillage and feed yard operations.
Apr 05, 2010 |
2.8 / 5 (6) |
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Mapping nutrient distributions over the Atlantic Ocean
Large-scale distributions of two important nutrient pools - dissolved organic nitrogen and dissolved organic phosphorus (DON and DOP) have been systematically mapped for the first time over the Atlantic Ocean in a study led ...
Space & Earth / Earth Sciences
Nov 03, 2009 |
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Deep-Sea Microbes May Answer Long-Standing Question About Earth's Nitrogen Cycle
(PhysOrg.com) -- Scientists have identified an unexpected metabolic ability in a symbiotic community of deep-sea microorganisms. It may help solve a lingering mystery about the world's nitrogen cycle.
Space & Earth / Earth Sciences
Oct 15, 2009 |
4.6 / 5 (9) |
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Key new ingredient in climate model refines global predictions
For the first time, climate scientists from across the country have successfully incorporated the nitrogen cycle into global simulations for climate change, questioning previous assumptions regarding carbon feedback and potentially ...
Space & Earth / Earth Sciences
Oct 09, 2009 |
3.6 / 5 (23) |
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Lake Research That Isn't All Wet
(PhysOrg.com) -- The federal government may not have been able to save California from massive budget cuts, but at least a stimulus research grant will help scientists understand the biology of western lakes.
Oct 02, 2009 |
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Planet's nitrogen cycle overturned by 'tiny ammonia eater of the seas'
(PhysOrg.com) -- It's not every day you find clues to the planet's inner workings in aquarium scum. But that's what happened a few years ago when University of Washington researchers cultured a tiny organism from the bottom ...
Sep 30, 2009 |
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Denitrification, its importance once diluted, may be back on top, study says
After more than a decade of inquiry, a Princeton-led team of scientists has turned the tables on a long-standing controversy to re-establish an old truth about nitrogen mixing in the oceans.
Sep 02, 2009 |
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Earth's biogeochemical cycles, once in concert, falling out of sync
(PhysOrg.com) -- What do the Gulf of Mexico's "dead zone," global climate change, and acid rain have in common? They're all a result of human impacts to Earth's biology, chemistry and geology, and the natural ...
Aug 04, 2009 |
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Ozone, nitrogen change the way rising CO2 affects Earth's water
Through a recent modeling experiment, a team of NASA-funded researchers have found that future concentrations of carbon dioxide and ozone in the atmosphere and of nitrogen in the soil are likely to have an ...
Jul 09, 2009 |
3.1 / 5 (7) |
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Study of agricultural watersheds and carbon losses
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 ...
Jun 19, 2009 |
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New proxy reveals how humans have disrupted the nitrogen cycle
More and more, scientists are getting a better grip on the nitrogen cycle. They are learning about sources of nitrogen and how this element changes as it loops from the nonliving, such as the atmosphere, soil ...
Jun 04, 2009 |
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New images of marine microbe illuminate carbon and nitrogen fixation
Trichodesmium is unusual among marine microbes because it both "breathes" carbon dioxide like plants, while also taking nitrogen gas from the air and "fixing" it into a fertilizer of the seas.
Mar 30, 2009 |
4 / 5 (3) |
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Tree species composition influences nitrogen loss from forests
Throughout the world, nitrogen compounds are released to the atmosphere from agricultural activities and combustion of fossil fuels. These pollutants are deposited to ecosystems as precipitation, gases, and particles, sometimes ...
Mar 16, 2009 |
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Billions of years ago, microbes were key in developing modern nitrogen cycle
(PhysOrg.com) -- As the world marks the 200th anniversary of Charles Darwin's birth, there is much focus on evolution in animals and plants. But new research shows that for the countless billions of tiniest creatures - microbes ...
Biology /
Feb 19, 2009 |
4.8 / 5 (6) |
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