Jyrki Jauhiainen 
,
Harri Vasander,
Jouko Silvola
Differences in response of two Sphagnum species to elevated CO2 and nitrogen input
Jauhiainen J., Vasander H., Silvola J. Differences in response of two Sphagnum species to elevated CO2 and nitrogen input.
Tiivistelmä
Cushions of Sphagnum fuscum and S. angustifolium were grown in the laboratory in four different C02 concentrations (350, 700, 1 000, and 2 000 ppm) and N deposition levels (0, 10, 30, and 100 kg ha-1 a-1). The same N deposition levels were also applied in the field. C02 concentration increased both the shoot density and dry mass of S. fuscum but decreased the length increment. There was no net effect on production. For S. angustifolium, shoot density did not alter with elevated C02 con-centration but the C02 induced increment in dry mass and length caused increased production. S. angustifolium suffered from nutrient deficiency on the 0 kg N ha-1a-1 treatment and S. fuscum had difficulties to survive at the heaviest N load. No clear trends in length increment or cover was noticed in the field study during the first year. Keywords: Bryophyte ecology, climate change, peatlands, production
Avainsanat
production;
peatlands;
climate change;
Bryophyte ecology
-
Jauhiainen,
University of Joensuu, Department of Biology, P.O. Box 111, FIN-80I0I Joensuu, Finland
Sähköposti
ei.tietoa@nn.oo
- Vasander, Sähköposti ei.tietoa@nn.oo
- Silvola, Sähköposti ei.tietoa@nn.oo
Vastaanotettu 31.10.2017 Julkaistu 1.1.1992
Katselukerrat 1687
Saatavilla http://suo.fi/article/9707 | Lataa PDF
