Isoprenoid emission variation of Norway spruce across a European latitudinal transect

Research output: Contribution to journalArticle

Abstract

Norway spruce (Picea abies) is one of the dominant tree species in the European boreal zone with the capacity to grow over large areas within Europe. It is an important emitter of biogenic volatile organic compounds (BVOCs), which can act as precursors of photochemical smog and ozone and contribute to the formation and growth of secondary organic aerosols (SOA) in the atmosphere.

Isoprenoid emissions were measured from Norway spruce trees at seven different sites, distributed from Ljubljana in Slovenia to Piikkiö in Finland. Four of the sites were part of a network of genetically identical spruce trees and contained two separate provenances. The remaining three sites were part of other networks which have been used to conduct studies in the European boreal zone.

There were minimal differences in the standardized emission rates between sites and across latitudes. The emission profile differed between provenances and sites, but there were not any distinct patterns which could be connected to a change in latitude. By using genetically identical trees and comparing the emission rates between sites and with genetically different trees, it was observed that the emission patterns were mostly influenced by genetics. But in order to confirm this possible stability of the relative emission profile based on genetics, more studies need to be performed.

The effects of branch height, season and variation between years on observed emission pattern variations were also investigated. There were indications of potential influences of all three factors. However, due to different experimental setups between measurement campaigns, it is difficult to draw any robust conclusions.

Details

Authors
Organisations
External organisations
  • Lund University
  • University of Copenhagen
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Physical Geography
Original languageEnglish
Pages (from-to)45-57
Number of pages13
JournalAtmospheric Environment
Volume170
Publication statusPublished - 2017 Sep 27
Publication categoryResearch
Peer-reviewedYes

Related research output

Wang, M., 2018 Jan, Lund: Lund University, Faculty of Science, Department of Physical Geography and Ecosystem Science.

Research output: ThesisDoctoral Thesis (compilation)

View all (1)