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Soil microbial activity in eleven Swedish coniferous forests in relation to site fertility and nitrogen fertilization

Author:
  • Kristina Arnebrant
  • Erland Bååth
  • Bengt Söderström
  • Hans-Örjan Nohrstedt
Publishing year: 1996
Language: English
Pages: 1-6
Publication/Series: Scandinavian Journal of Forest Research
Volume: 11
Issue: 1
Document type: Journal article
Publisher: Taylor & Francis

Abstract english

The effect of forest fertilization on soil microbial activity and biomass was studied in 11 coniferous forests with different site fertility. Soil microbial activity was measured as respiration rate and the microbial biomass was estimated using ATP content and substrate-induced respiration rate (SIR). At all sites, except those with the highest site fertility, the microbial activity and biomass were reduced in the fertilized treatments compared with the control. The general trend indicated that the lower the site fertility, the more pronounced was the reduction of microbial biomass and activity. Some possible explanations for this effect are discussed.

Keywords

  • Biological Sciences
  • Ammonium nitrate
  • A TP
  • microhial biomass
  • Picea abies
  • Pinus sylvestris
  • SIR
  • soil fertility
  • soil respiration.

Other

Published
  • Microbial Ecology
  • ISSN: 0282-7581
Erland Bååth
E-mail: erland [dot] baath [at] biol [dot] lu [dot] se

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