Elevated Carbon Dioxide Changes Soil Microbe Mix Below Plants

A detailed analysis of soil samples taken from a **forest ecosystem** with artificially elevated levels of atmospheric **carbon dioxide** (CO2) reveals distinct changes in the **mix of microorganisms** living in the soil below trembling aspen. These changes could increase the availability of essential soil nutrients, thereby supporting increased plant growth and the plants' ability to "lock up," or sequester, excess carbon from the atmosphere. The research will be published online this week in the journal Environmental Microbiology. "Brookhaven National Laboratory":[ http://www.bnl.gov/bnlweb/pubaf/pr/PR_display.asp?prID=07-121]

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