Long-term warming of a subarctic heath decreases soil bacterial community growth but has no effects on its temperature adaptation
Författare
Summary, in English
We tested whether bacterial communities of subarctic heath soil are adapted to elevated temperature after experimental warming by open-top greenhouses for 7 or 17 years. The long-term warming by 1-2 degrees C significantly decreased bacterial community growth, by 28% and 73% after 7 and 17 years, respectively. The decrease was most likely due to decreased availability of labile substrate under warming. However, we found no evidence for temperature adaptation of soil bacterial communities. The optimum temperature for bacterial growth was on average 25 C, and the apparent minimum temperature for growth between -7.3 and -6.1 degrees C. and both were unaffected by warming. (C) 2011 Elsevier B.V. All rights reserved.
Avdelning/ar
Publiceringsår
2011
Språk
Engelska
Sidor
217-220
Publikation/Tidskrift/Serie
Applied Soil Ecology
Volym
47
Issue
3
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Biological Sciences
Nyckelord
- Arctic
- Bacterial growth
- Climate warming
- Microbial community
- adaptation
- Thymidine incorporation
- Temperature response
Status
Published
Forskningsgrupp
- Microbial Ecology
ISBN/ISSN/Övrigt
- ISSN: 0929-1393