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Jing Tang

Forskare

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Process Understanding of Soil BVOC Fluxes in Natural Ecosystems : A Review

Författare

  • J. Tang
  • G. Schurgers
  • R. Rinnan

Summary, in English

Biogenic volatile organic compounds (BVOCs) can be released from soils to the atmosphere through microbial decomposition of plant residues or soil organic carbon, root emission, evaporation of litter-stored BVOCs, and other physical processes. Soils can also act as a sink of BVOCs through biotic and abiotic uptake. Currently, the source and sink capabilities of soils have not been explicitly accounted for in global BVOC estimates from the terrestrial biosphere. In this review, we summarize the current knowledge of soil BVOC processes and aim to propose a generic framework for modelling soil BVOCs based on current understanding and data availability. To achieve this target, we start by reviewing measured sources and sinks of soil BVOCs and summarize commonly reported compounds. Next, we strive to disentangle the drivers for the underlying biotic and abiotic processes. We have ranked the list of compounds, known to be emitted from soils, based on our current understanding of how each process controls emission and uptake. We then present a modelling framework to describe soil BVOC emissions. The proposed framework is an important step toward initializing modelling exercises related to soil BVOC fluxes. Finally, we also provide suggestions for measurements needed to separate individual processes, as well as explore long-term and large-scale patterns in soil BVOC fluxes.

Avdelning/ar

  • Institutionen för naturgeografi och ekosystemvetenskap
  • MERGE: ModElling the Regional and Global Earth system
  • Biologiska institutionen

Publiceringsår

2019-07-23

Språk

Engelska

Sidor

966-986

Publikation/Tidskrift/Serie

Reviews of Geophysics

Volym

57

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

American Geophysical Union (AGU)

Ämne

  • Environmental Sciences

Nyckelord

  • biogenic volatile organic compound
  • decomposition
  • ecosystem models
  • microbial activity
  • soil emission
  • soil uptake

Status

Published

Projekt

  • Modelling Arctic Biogenic Volatile Organic Compounds Emissions and their Impacts on Regional Air Quality

ISBN/ISSN/Övrigt

  • ISSN: 8755-1209