Earlier snowmelt reduces forests’ ability to regulate atmospheric carbon, decreases streamflow vol…
http://www.colorado.edu/news/releases/2016/08/03/earlier-snowmelt-reduces-forests-ability-regulate-atmospheric-carbon-decreases[font face=Serif][font size=5]Earlier snowmelt reduces forests ability to regulate atmospheric carbon, decreases streamflow volume[/font]
August 3, 2016
[font size=3]Earlier snowmelt periods associated with a warming climate may hinder subalpine forest regulation of atmospheric carbon dioxide (CO2), according to the results of a new University of Colorado Boulder study.
The findings,
which were recently published in the journal Geophysical Research Letters, predict that this shift in the timing of the snowmelt could result in a 45 percent reduction of snowmelt period forest carbon uptake by mid-century.
A separate study,
also published in Geophysical Research Letters, found that earlier, slower snowmelt reduces the amount of streamflow, a phenomenon which could have potentially drastic consequences for agriculture, municipal water supplies and recreational opportunities in Colorado and other areas of the western U.S.
Forests located in seasonally snow-covered areas represent a key terrestrial CO2 sink thanks to the natural photosynthetic processes by which trees absorb carbon. The trees carbon uptake is restrained during winter, but increases to peak capacity in spring when snowmelt provides sustained water input.
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