Diurnal CO 2 profiles from a Zea mays L. Canopy

Steven E. Hollinger, Carl J. Bernacchi, Tilden P. Meyers

Research output: Contribution to conferencePaperpeer-review


The contribution to net ecosystem productivity (NEP) of respiration from the soil, measured with a CO 2 profile system located in a corn canopy was examined. CO 2 profiles were monitored in a no-till corn canopy, at the AmeriFlux tower located near Champaign, IIinois. The CO 2 profile and AmeriFlux data were used to compute fluxes of CO 2 in the canopy. The profile measurements showed an accumulation of CO 2 in the corn canopy during night hours. It was found that CO 2 were greatest at night at the three levels where measurements were made and began to decrease at sunrise.

Original languageEnglish (US)
Number of pages5
StatePublished - 2004
Event26th Conference on Agricultural and Forest Meteorology - Vancouver, BC, Canada
Duration: Aug 23 2004Aug 26 2004


Other26th Conference on Agricultural and Forest Meteorology
CityVancouver, BC

ASJC Scopus subject areas

  • General Engineering


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