WIT Press

Estimates Of The Natural Non-methane VOC Emissions From Vegetation In Switzerland

Price

Free (open access)

Paper DOI

10.2495/AIR940142

Volume

4

Pages

8

Published

1994

Size

713 kb

Author(s)

S. Andreani-Aksoyoglu & J. Keller

Abstract

Estimates of the natural non-methane VOC emissions from vegetation in Switzerland S. Andreani-Aksoyoglu, J. Keller Laboratory for Environmental Research and Systems Analysis, Paul Scherrer Institute, ABSTRACT Emissions of biogenic volatile organic compounds (VOC) from forests, agricultural crops and pasture were estimated for Switzerland. Biogenic emissions were found to be about 24% of the total annual VOC emissions. Calculations showed that the forests are the main sources of the biogenic emissions whereas emissions from crops are only 7%, coming mainly from corn and pasture. The major contribution comes from the coniferous trees, especially from Norway spruce (picea abies) forests due to their abundance and high leaf biomass density. Although broad-leaved forests cover 27% of all the forests in Switzerland, their contribution to the biogenic emissions is only 2%. Monoterpene emission from the forests is predominantly higher than isoprene emission. Total ann

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