Organic matter
hideOrganic matter (or organic material) is matter that has come from a once-living organism; is capable of decay, or the product of decay; or is composed of organic compounds. The definition of organic matter varies upon the subject it is being used for.
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News tagged with organic matter
Mystery Solved: Marine Microbe Is Source of Rare Nutrient
Space & Earth / Earth Sciences
Sep 29, 2009 |
4.8 / 5 (23) |
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(PhysOrg.com) -- A new study of microscopic marine microbes, called phytoplankton, by researchers at Woods Hole Oceanographic Institution (WHOI) and the University of South Carolina has solved a ten-year-old ...
Mummified dinosaur skin yields up new secrets
Other Sciences / Archaeology & Fossils
Jul 01, 2009 |
4.7 / 5 (18) |
10
(PhysOrg.com) -- Scientists from The University of Manchester have identified preserved organic molecules in the skin of a dinosaur that died around 66-million years ago.
Climate variability impacts the deep sea
Space & Earth / Earth Sciences
Nov 02, 2009 |
4.1 / 5 (7) |
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Deep-sea ecosystems occupying 60% of the Earth's surface could be vulnerable to the effects of global warming warn scientists writing in the Proceedings of the National Academy of Sciences.
Catastrophic Darkness: How Life Survives an Asteroid Impact
Space & Earth / Space Exploration
Sep 10, 2009 |
4.5 / 5 (6) |
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A dinosaur-killing asteroid may have wiped out much of life on Earth 65 million years ago, but now scientists have discovered how smaller organisms might have survived in the darkness following such a catastrophic ...
How Mercury Becomes Toxic In The Environment
Aug 18, 2009 |
3.8 / 5 (8) |
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(PhysOrg.com) -- Naturally occurring organic matter in water and sediment appears to play a key role in helping microbes convert tiny particles of mercury in the environment into a form that is dangerous to ...
Subseafloor sediment in South Pacific Gyre one of the least inhabited places on Earth
Space & Earth / Earth Sciences
Jun 22, 2009 |
4.5 / 5 (4) |
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(PhysOrg.com) -- An international oceanographic research expedition to the middle of the South Pacific Gyre - a site that is as far from continents as it is possible to go on Earth's surface - found so few organisms beneath ...
Scientists find climate change to have paradoxical effects in coastal wetlands
Space & Earth / Earth Sciences
Mar 23, 2009 |
3.3 / 5 (7) |
3
Rising atmospheric carbon dioxide is largely responsible for recent global warming and the rise in sea levels. However, a team of scientists, including two Smithsonian ecologists, have found that this same increase in CO2 may ironic ...
Ethanol production could jeopardize soil productivity
Jun 02, 2009 |
4.3 / 5 (4) |
3
There is growing interest in using crop residues as the feedstock of choice for the production of cellulosic-based ethanol because of the more favorable energy output relative to grain-based ethanol. This would also help ...
Biologists: Greening Arctic not likely to offset permafrost carbon release
May 27, 2009 |
3.1 / 5 (7) |
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As the frozen soil in the Arctic thaws, bacteria will break down organic matter, releasing long-stored carbon into the warming atmosphere.
Global warming is changing organic matter in soil
Space & Earth / Earth Sciences
Nov 24, 2008 |
2.9 / 5 (33) |
7
(PhysOrg.com) -- New research shows that we should be looking to the ground, not the sky, to see where climate change could have its most perilous impact on life on Earth.
Fertilizers may not help poorest African farmers
Sep 24, 2009 |
5 / 5 (7) |
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(PhysOrg.com) -- Researchers have linked poverty in sub-Saharan Africa with poor soil health, but two new Cornell studies find that the recommended practice of applying more fertilizer may not help the poorest ...
Perennial vegetation, an indicator of desertification in Spain
Sep 04, 2009 |
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A team of scientists has analyzed 29 esparto fields from Guadalajara to Murcia and has concluded that perennial vegetation cover is an efficient early warning system against desertification in these ecosystems. ...
Earthworm activity can alter forests' carbon-carrying capabilities
Space & Earth / Earth Sciences
Oct 27, 2008 |
4.3 / 5 (16) |
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Earthworms can change the chemical nature of the carbon in North American forest litter and soils, potentially affecting the amount of carbon stored in forests, according to Purdue University researchers.
Additive copper-zinc interaction affects toxic response in soybean
Nov 10, 2009 |
3 / 5 (2) |
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Agricultural soils accumulate trace metals, particularly copper and zinc, as a result of their presence in wastes (sewage biosolids and manures) and fungicides that are applied over long periods of time. Regulations and guidelines ...
Pavement sealcoat a source of toxins in stormwater runoff
Apr 08, 2009 |
5 / 5 (3) |
1
Driveways and parking lots may look better with a layer of sealcoat applied to the pavement, but the water running off the surface into nearby streams will be carrying more than just oxygen and hydrogen molecules. ...
