Quantcast

Latest Nitrogen cycle Stories

Image 1 - Bedrock Nitrogen May Help Forests Buffer Climate Change
2011-09-01 10:28:43

  For the first time, researchers at the University of California, Davis, have demonstrated that forest trees have the ability to tap into nitrogen found in rocks, boosting the trees' growth and their ability to pull more carbon dioxide from the atmosphere. Given that carbon dioxide is the most important climate-change gas, the nitrogen in rocks could significantly affect how rapidly the earth will warm in the future, the researchers say. They report their findings in the Sept. 1...

c372be77f6fda8c51f8422063553854d
2011-05-26 11:06:29

One helpful action anyone can take in response to global warming is to plant trees and preserve forests. Trees and plants capture carbon dioxide during photosynthesis, thereby removing the most abundant greenhouse gas from the atmosphere and storing some of it in their woody tissue. Yet global warming may affect the capacity of trees to store carbon by altering forest nitrogen cycling, concludes a study led by Jerry Melillo of the Marine Biological Laboratory (MBL), published this week in...

2011-04-25 16:22:58

Life on Earth would be impossible, without the metabolic capacities of the smallest of all living forms, the Bacteria and the Archaea. These microorganisms play a central role in global nutrient cycles, because they degrade organic matter to the smallest compounds, thus bringing them back to the atmosphere or recycling them for the synthesis of novel cells. "However, the great diversity and high numbers of Bacteria and Archaea in soils have only been detected relatively recently, with the...

e00f0a18c03278ddd3298a00d5376db81
2011-03-05 11:30:52

Study examines the disposal of animal waste in large-scale swine productionNorth and South Carolina have seen a steady increase in swine production over the last 15 years. In North Carolina alone, swine production generates approximately a quarter of the state's gross farm receipts. The presence of so many large-scale pig farms leads to the problem of proper animal waste disposal.The most common practice in the Carolinas is storing animal waste in anaerobic lagoons. They are primarily used to...

2011-02-22 21:37:44

People who want to eat healthy and live sustainably have a new way to measure their impact on the environment: a Web-based tool that calculates an individual's "nitrogen footprint." The device was created by University of Virginia environmental scientist James N. Galloway; Allison Leach, a staff research assistant at U.Va.; and colleagues from the Netherlands and the University of Maryland. The calculator is a project of the International Nitrogen Initiative, a global network of scientists...

4be6939241e600b655e41271a4311da8
2011-02-10 09:09:05

A coupled-cycles framework is essential to balancing human needs with the health of the planet If society wants to address big picture environmental problems, like global climate change, acid rain, and coastal dead zones, we need to pay closer attention to the Earth's coupled biogeochemical cycles. So reports a special issue of Frontiers in Ecology and the Environment, published this month by the Ecological Society of America. "There are nearly seven billion people on the planet. And our...

2010-12-21 23:26:42

In a study published December 20 in the Proceedings of the National Academy Sciences (PNAS), a team of researchers including University of New Hampshire scientists Wilfred Wollheim, William McDowell, and Jody Potter details findings that show emissions of the potent greenhouse gas nitrous oxide from global rivers and streams are three times previous estimates used by the Intergovernmental Panel on Climate Change "“ the leading international body for the assessment of climate change....

9fb4320374484c2bd803282782d37ebc
2010-10-08 18:00:00

Resulting ecological damage is serious, but could be reduced by wider use of more sustainable, time-honored practices Humans are overloading ecosystems with nitrogen through the burning of fossil fuels and an increase in nitrogen-producing industrial and agricultural activities, according to a new study. While nitrogen is an element that is essential to life, it is an environmental scourge at high levels. According to the study, excess nitrogen that is contributed by human activities pollutes...

2010-10-08 02:24:37

Resulting ecological damage is serious, but could be reduced by wider use of more sustainable, time-honored practices Humans are overloading ecosystems with nitrogen through the burning of fossil fuels and an increase in nitrogen-producing industrial and agricultural activities, according to a new study. While nitrogen is an element that is essential to life, it is an environmental scourge at high levels. According to the study, excess nitrogen that is contributed by human activities pollutes...

2010-08-09 14:20:54

Nitrogen-altering bacteria thrive under charcoal deposition When fire burns down a forest, nitrate levels go up, and the effects are persistent, according to recent research from University of Montana scientists. They found that charcoal deposited during fire events has the potential to stimulate the conversion of ammonia to nitrates, an important step in the nitrogen cycle. Led by Patrick Ball, the research team found that a type of bacteria that transforms ammonia into nitrates was found in...


Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
Related