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Response of Sphagna to the changing environment

Abstract

During last decade, considerable interest has been focused to assess the influence of human activities on ecosystems. The increasing trend in the atmospheric concentration of CO{sub 2} has been predicted to continue till the next century and the amount of nitrogen deposition in the northern hemisphere has increased markedly. Substantial interest has been focused on predicting how these changes will affect on plants. Most boreal mire ecosystems are dominated by mosses of the genus Sphagnum, the litter of which constitutes the main component in the peat deposits and is an important CO{sub 2} sink via peat formation. Since virtually nothing was known about the growth response of peat mosses to elevated concentrations of CO{sub 2} and alerting changes in species composition were detected in the sensitive ombrotrophic mire vegetation under increased N deposition in central Europe, this study was established. Laboratory experiments focused on measurements of the patterns of growth, production and plant metabolism at increased CO{sub 2} and N deposition levels in peat moss species. Long term field experiments were established to study the growth response and spatial competition of two interacting Sphagnum species under the increased nitrogen deposition levels
Authors:
Vasander, H; [1]  Jauhiainen, J; Silvola, J; [2]  Karsisto, M [3] 
  1. Helsinki Univ. (Finland). Dept. of Forest Ecology
  2. Joensuu Univ. (Finland). Dept. of Biology
  3. Finnish Forest Research Inst., Vantaa (Finland)
Publication Date:
Dec 31, 1996
Product Type:
Technical Report
Report Number:
SA-PUB-4/96
Reference Number:
SCA: 540220; 540120; PA: FI-97:003119; EDB-97:029079; SN: 97001727878
Resource Relation:
Other Information: DN: SILMU Research Programme; PBD: 1996; Related Information: Is Part Of The Finnish research programme on climate change. Final report; Roos, J. [ed.]; PB: 507 p.
Subject:
54 ENVIRONMENTAL SCIENCES; AIR POLLUTION; WETLANDS; ENVIRONMENTAL IMPACTS; CARBON DIOXIDE; ECOLOGICAL CONCENTRATION; BIOLOGICAL EFFECTS; NITROGEN; PHOTOSYNTHESIS; SPECIES DIVERSITY; PLANT GROWTH
OSTI ID:
428496
Research Organizations:
Academy of Finland, Helsinki (Finland)
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE97724949; ISBN 951-37-1961-8; TRN: FI9703119
Availability:
OSTI as DE97724949
Submitting Site:
FI
Size:
pp. 353-358
Announcement Date:
Feb 20, 1997

Citation Formats

Vasander, H, Jauhiainen, J, Silvola, J, and Karsisto, M. Response of Sphagna to the changing environment. Finland: N. p., 1996. Web.
Vasander, H, Jauhiainen, J, Silvola, J, & Karsisto, M. Response of Sphagna to the changing environment. Finland.
Vasander, H, Jauhiainen, J, Silvola, J, and Karsisto, M. 1996. "Response of Sphagna to the changing environment." Finland.
@misc{etde_428496,
title = {Response of Sphagna to the changing environment}
author = {Vasander, H, Jauhiainen, J, Silvola, J, and Karsisto, M}
abstractNote = {During last decade, considerable interest has been focused to assess the influence of human activities on ecosystems. The increasing trend in the atmospheric concentration of CO{sub 2} has been predicted to continue till the next century and the amount of nitrogen deposition in the northern hemisphere has increased markedly. Substantial interest has been focused on predicting how these changes will affect on plants. Most boreal mire ecosystems are dominated by mosses of the genus Sphagnum, the litter of which constitutes the main component in the peat deposits and is an important CO{sub 2} sink via peat formation. Since virtually nothing was known about the growth response of peat mosses to elevated concentrations of CO{sub 2} and alerting changes in species composition were detected in the sensitive ombrotrophic mire vegetation under increased N deposition in central Europe, this study was established. Laboratory experiments focused on measurements of the patterns of growth, production and plant metabolism at increased CO{sub 2} and N deposition levels in peat moss species. Long term field experiments were established to study the growth response and spatial competition of two interacting Sphagnum species under the increased nitrogen deposition levels}
place = {Finland}
year = {1996}
month = {Dec}
}