Sources: Joseph 1xbet sports betting 785-532-3062, jcraine@1xbet sports betting edu;
and Kendra McLauchlan, 785-532-6155, mclauch@1xbet sports betting edu
News release prepared by: Stephanie Jacques, 785-532-0101, sjacques@1xbet sports betting edu

Tuesday, Nov. 23, 2010

1xbet sports betting RESEARCH PROVIDES NEW INSIGHT INTO FUTURE GLOBAL WARMING PREDICTIONS

MANHATTAN -- Soil that was once thought to be the least vulnerable to decomposition is actually the most sensitive to increasing temperatures, making it more likely to release 1xbet sports betting into the atmosphere as the climate warms, according to researchers at Kansas State University and a colleague in Colorado.

Joseph Craine, K-State research assistant professor of biology; Kendra McLauchlan, K-State assistant professor of geography; and Noah Fierer, assistant professor of ecology at the University of Colorado at Boulder, are the authors of &1xbet sports betting ;Widespread Coupling between the Rate and Temperature Sensitivity of Organic Matter Decay,&1xbet sports betting ; published recently in the journal Nature Geoscience. Their data will be used to develop a model for more accurately predicting future global warming.

With more than 0,000 in grants from the National Science Foundation, the three researchers analyzed microbial decomposition of 1xbet sports betting organic matter from 28 different sets of soils collected from sites across North America -- stretching from Alaska to Puerto Rico. The samples were incubated for a year, periodically altering the temperatures to measure changes in the rate of 1xbet sports betting microbe respiration.

&1xbet sports betting ;We found that as we warmed different soils, those soils that were the hardest for microbes to degrade showed the greatest response to the increase in temperature,&1xbet sports betting ; Craine said. &1xbet sports betting ;We were the first to demonstrate that chemical laws discovered more than 120 years ago predict how warming affects microbial decomposition of soil carbon.&1xbet sports betting ;

Based on their research and the results from other studies that incubated a range of organic materials like simple sugars, leaves, roots and other soils, the group discovered a general relationship that clearly shows that 1xbet sports betting molecules in the soil with the most chemical resistance to microbial enzymes are most sensitive to temperature increases.

&1xbet sports betting ;The future of the Earth's temperature depends on the ability of soils to retain carbon as the world warms,&1xbet sports betting ; Craine said. &1xbet sports betting ;Globally, soils contain about twice as much carbon as found in the atmosphere and three times as much found in vegetation. That means even a small percent increase in carbon released from the soil could have a major impact on the atmosphere and future warming.&1xbet sports betting ;

The process of removing 1xbet sports betting from the atmosphere and storing it in the soil is a natural part of the 1xbet sports betting cycle, although soil 1xbet sports betting varies greatly in quality, Craine said. A small portion of the 1xbet sports betting stored in the soil can be returned to the atmosphere through decomposition, when soil microbes digest organic matter and release 1xbet sports betting dioxide as a byproduct.

&1xbet sports betting ;Soil carbon quality is best explained by how easy it is for organic matter in the soil to decompose,&1xbet sports betting ; McLauchlan said. &1xbet sports betting ;Chemically speaking, things with a lower carbon quality are harder for microbes to eat, and they're just more complicated structurally.&1xbet sports betting ;

Evidence from the study contradicted the group's original hypothesis by finding that complicated 1xbet sports betting molecules are more sensitive to increasing temperatures in varied soil samples.

&1xbet sports betting ;The results were surprising, in a sense, because we think that the more complicated a carbon molecule is, the more difficult it should be to break down,&1xbet sports betting ; McLauchlan said. &1xbet sports betting ;It should be protected; basically it should be inaccessible and be very stable in the soil; however, what's protecting it is thermodynamics. When you add heat, that makes those reactions go, and the soil becomes vulnerable.&1xbet sports betting ;

The group will be developing an equation that can be used in models to simulate data about future emissions of 1xbet sports betting dioxide from the soil in response to warming, Craine said. The data could ultimately become the basis for politicians to enact legislation to prepare for and to mitigate future warming.

&1xbet sports betting ;The work does not, in and of itself, tell us how much more carbon dioxide will enter the atmosphere as the Earth warms, but it does provide a key equation that can be incorporated into computer models,&1xbet sports betting ; Craine said. &1xbet sports betting ;It's possible that we have been vastly underestimating how much additional carbon dioxide will enter the atmosphere.&1xbet sports betting ;