P.I.(s): Manuel Lerdau and Russell Monson -- University of Colorado
Objectives: To investigate the mechanistic controls over non-methane hydrocarbon (NMHC) fluxes from boreal forest trees. The studies will be used to modify existing ecosystem models to include NMHC emissions and their response to seasonality and resource variability (primarily water and nitrogen). The proposed research is ordered around three general questions:
Sites: SSA-OBS and SSA-OA
Duration: IFCs 1994
To determine ecological controls over leaf-level fluxes on monoterpenes from black spruce and jack pine.
Types of Data Collected, Equipment Used:
Photosynthetic rates, monoterpene flux rates, monoterpene tissue concentrations, leaf tissue nitrogen concentrations, infra-red gas analysis, gas chromatography-mass spectroscopy.
Summary of Places and Times of Measurements:
All four intensives in SSA at OJP and OBS, in addition, 6 black spruce bogs along east/west transect from SSA-OJP to PANP.
Known Problems or Caveats:
Our humidity sensor worked only intermittently, so out transpiration numbers are sketchy.
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Last Updated: November 5, 1997