Meny

Javascript is not activated in your browser. This website needs javascript activated to work properly.
Du är här

Factors controlling large scale variations in methane emissions from wetlands

Författare:
Publiceringsår: 2003
Språk: Engelska
Sidor:
Publikation/Tidskrift/Serie: Geophysical Research Letters
Volym: 30
Nummer: 7
Dokumenttyp: Artikel
Förlag: American Geophysical Union (AGU)

Sammanfattning

[1] Global wetlands are, at estimate ranging 115-237 Tg CH4/yr, the largest single atmospheric source of the greenhouse gas methane (CH4). We present a dataset on CH4 flux rates totaling 12 measurement years at sites from Greenland, Iceland, Scandinavia and Siberia. We find that temperature and microbial substrate availability (expressed as the organic acid concentration in peat water) combined explain almost 100% of the variations in mean annual CH4 emissions. The temperature sensitivity of the CH4 emissions shown suggests a feedback mechanism on climate change that could validate incorporation in further developments of global circulation models.

Disputation

Nyckelord

  • Earth and Environmental Sciences

Övriga

Published
Yes
  • ISSN: 0094-8276

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen