Climate models need deeper roots, scientists say

nspiration, plants remove heat from their immediate environment. The evaporated moisture is carried elsewhere, eventually to fall as precipitation, releasing heat in the process. Through this ongoing energy cycle, plants can influence the climate.

"The variation of soil moisture in the deeper layers is a long term variation that we believe will be highly correlated with long term variations produced by climate models," Kumar said. "If we are right, we will have better predictability of climate over a longer period of time, to the extent that plants impact the climate system."

Kumar and Amenu will present the latest results of their modeling efforts, and the implications for climate modeling, at the American Geophysical Union meeting in San Francisco, Dec. 5-9. Their work was funded by the National Oceanic and Atmospheric Administration.


Contact: James E. Kloeppel
University of Illinois at Urbana-Champaign

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