Frequency-domain electromagnetic induction for upscaling greenhouse gas fluxes in two hemiboreal drained peatland forests

Rémi Clément*, Jaan Pärn, Martin Maddison, Hocine Henine, Cédric Chaumont, Julien Tournebize, Veiko Uri, Mikk Espenberg, Thomas Günther, Ülo Mander

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The greenhouse-gas (GHG) balance of CH4 and N2O emissions and CO2 respiration in peatlands plays a key role in climate change. A GHG balance is mostly calculated from point measurements. In this study we propose and test a geophysical method of low frequency domain electromagnetic method (FDEM) as a proxy for forest-floor CO2 respiration and CH4 emissions in two 50 × 100 m drained peatlands in Estonia: a Downy birch and a Scots pine stand from April to September 2015. The FDEM measurement campaign in September 2015 yielded a detailed map of topsoil electrical conductivity. We explain the predictive power of FDEM on GHG emissions through relationships with dry bulk density of soil. Although we over- or underestimated some fluxes owing to soil heterogeneity, we composed reasonably credible GHG emission maps. The initial results seem promising and we recommend further application of FDEM methods.

Original languageEnglish
Article number103944
Number of pages10
JournalJournal of Applied Geophysics
Volume173
Early online date8 Jan 2020
DOIs
Publication statusPublished - Feb 2020

Keywords

  • Carbon dioxide
  • Chamber method
  • Downy birch
  • Geophysics
  • Greenhouse gases
  • Methane
  • Nitrous oxide
  • Norway spruce

Fingerprint

Dive into the research topics of 'Frequency-domain electromagnetic induction for upscaling greenhouse gas fluxes in two hemiboreal drained peatland forests'. Together they form a unique fingerprint.

Cite this