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SUMMARY:Short and long-term effects of climate\, disturbance\, and forest 
 management on regional carbon storage and emissions under current and prop
 osed policy plans - Tara W. Hudiburg\, Oregon State University
DTSTART:20120312T100000Z
DTEND:20120312T110000Z
UID:TALK36890@talks.cam.ac.uk
CONTACT:Microsoft Research Cambridge Talks Admins
DESCRIPTION:Carbon cycling in the terrestrial biosphere\, particularly for
 est ecosystems\, has an important role in regulating atmospheric concentra
 tions of carbon dioxide. US West coast forest management policies are bein
 g developed to implement forest biofuels energy production while reducing 
 risk of catastrophic wildfire.  The impact of partial disturbance (i.e. th
 inning) on net ecosystem carbon balance (NBP) has not been quantified. Mod
 eling and understanding the response of terrestrial ecosystems to changing
  environmental conditions associated with energy production and use are pr
 imary goals of global change science. Coupled carbon-nitrogen ecosystem pr
 ocess models identify and predict important factors that govern long term 
 changes in terrestrial carbon stores or net ecosystem production (NEP).  T
 hrough the combined use of forest inventory data and the NCAR CESM/CLM4-CN
  coupled carbon-climate model\, the objectives of this project were to 1) 
 determine the short-term net carbon emissions to the atmosphere of US west
  coast forests following the implementation of bioenergy management strate
 gies using observed plot data\, 2) validate model output using a spatially
  representative dataset for the region\, and  3) predict the net carbon em
 issions for Oregon forests under future environmental change and multiple 
 rotations of bioenergy harvest. Increased harvest activity for bioenergy w
 as found to result in increased emissions to the atmosphere depending on t
 he baseline conditions of the forest. Future changes in baseline condition
 s may result in reduced emissions in some forest types. However\, better u
 nderstanding of the causes of reduced forest carbon uptake\, the implicati
 ons on nutrient cycling\, and a range of climate scenarios are required to
  determine the specific consequences of forest management decisions under 
 future environmental change.
LOCATION:Small lecture theatre\, Microsoft Research Ltd\, 7 J J Thomson Av
 enue (Off Madingley Road)\, Cambridge
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