WIT Press


Forest Soil Cover: VOC Sink Or Source ?

Price

Free (open access)

Paper DOI

10.2495/EURO990312

Volume

36

Pages

5

Published

1999

Size

405 kb

Copyright

WIT Press

Author(s)

V. Isidorov, V. Povarov and A. Stepanov

Abstract

Forest Soil Cover: VOC Sink or Source ? Guest contribution V. Isidorov*, V. Povarov^ and A. Stepanov^ * Institute of Chemistry, University in Bialystok, 15-443 Bialystok, Poland ^Institute of Chemistry, St.Petersburg University, 198904 St.Petersburg, Russia Forests are justly considered to be the principal sources of phytogenic VOCs. However, attention is concentrated on VOCs emission by foliage of trees, and their emission by soil cover (SC) consisting #f plants and litter is absolutely ignored. Moreover, one must not exclude a priori the possibility of VOC emission by soils in which microbiological decomposition of vegetable remains occurs. The yield of products of gas phase chemical reactions with the participation of VOCs and NOx strongly depends on the transport, dilution, and precipitation on the uderlying surface of all molecules and free radicals involved in the process. Hence, in simulating photo-oxidant form

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