Intercom

intercom home  |  advanced search  |  about intercom  |  alerts  |  faq  |  help  |  rss  

user functions

Log into intercom now

Current Ithaca College community members may contribute stories and comments as well as view additional topics by logging in.

Reset My Password

roundup

E-mail
Roundup

Sign up to receive a summary of Intercom headlines via e-mail three times a week.

Jason Hamilton, Department of Biology, presented the following poster:
E.H. DeLucia, D.J. Moore, J.G. Hamilton, A. Finzi, J. Pippen, W.H. Schlesinger, R.J. Norby.

"The Changing Role of Forests in the Global Carbon Cycle: Responses to Elevated Atmospheric CO2," presented at the American Geophysical Union Fall Meeting in San Francisco, California, December 2003.

The combustion of fossil fuels is injecting vast quantities of CO2 in the atmosphere and driving an increase in global temperatures. Forests contribute half or more of global net primary production and approximately 80 percent of terrestrial productivity and thus play a central role in the global carbon cycle.

Using free-air CO2 enrichment technology to expose plots within intact forests to the level of CO2 anticipated in 2050, it was discovered that net ecosystem productivity (NEP) and net primary productivity (NPP) in loblolly pine and sweetgum forests were substantially increased. Imbalances in the N cycle may reduce the response of these forests to elevated CO2 in the future.

The stimulation of forest productivity will slow the accumulation of CO2 in the atmosphere, but if these forests are representative of forests globally, the observed stimulation of productivity is insufficient to reverse the accumulation fossil-fuel derived C in the atmosphere.

Related Link:

  • "Changing Role of Forests in the Global Carbon Cycle," the poster in PDF form



    Contributed by Nancy Pierce

  • Biology's Hamilton Presents Poster on Forests | 0 Comments |
    The following comments are the opinions of the individuals who posted them. They do not necessarily represent the position of Intercom or Ithaca College, and the editors reserve the right to monitor and delete comments that violate College policies.
    Refresh view