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Article: ON THE SEASONALITY OF ISOPRENE EMISSIONS FROM A MIXED TEMPERATE FOREST.
- Article from:
- Ecological Applications
- Article date:
- November 1, 1999
- Author:
CopyrightCOPYRIGHT 1999 Ecological Society of America. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract. Measurements of isoprene concentration and flux were made at a mixed deciduous forest in southern Canada during 1995 to characterize diel and seasonal emissions and thus deduce annual inventories. Isoprene inventories are necessary for inputs to modeling systems to study atmospheric chemistry and carbon budgets. Despite adequate environmental conditions to promote emissions, the onset of isoprene emission occurred two weeks after full leaf expansion, and two additional weeks were required for plants to emit isoprene at the maximum capacity. Such maximum isoprene emission was measured during July when canopy isoprene fluxes reached 40-60 nmol (isoprene) ...
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