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Pekka Pakarinen (email)

Soiden trofiajakojen tarkastelua

Pakarinen P. Soiden trofiajakojen tarkastelua.

English title: Trophic classifications of peatlands

Tiivistelmä

The article deals with the oligotrophic-eutrophic and ombrotrophic-minerotrophic gradients in peatlands. The use of these terms in Finland, Sweden, the Soviet Union, Central Europe, Canada and England is briefly reviewed. In the case of peatlands, the concept of eutrophy, as defined by most authors, implies high pH, high levels of calcium and nitrogen, but its relationship to phosphorus and potassium levels (which greatly affect the tree growth and productivity) is not so clear. It is important to make a distinction between trophic series related: (1) to primary production, and (2) to pH (Ca)gradient. For the former, the terms oli-go-, meso- and eutrophic seem appropriate (as in the case of limnology); for the latter, the following four categories could be used: ombrotrophic, weakly-, moderately- and strongly minerotrophic. Apparently some authors have also used the terms soligenic or rheotrop-hic as synonyms for minerotrofic.

Tekijä
  • Pakarinen, Sähköposti ei.tietoa@nn.oo (sähköposti)

Vastaanotettu 31.10.2017 Julkaistu 1.1.1975

Katselukerrat 353

Saatavilla http://suo.fi/article/9445 | Lataa PDF

Creative Commons License CC BY-NC-ND 4.0

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Hakutulokset
Pakarinen P., Häsänen E. (1983) Mercury concentrations of bog mosses and lichens Suo - Mires and peat vol. 34 no. 1 artikkeli 9565
Pakarinen P., (1982) Numerical classification of south finnish mire a.. Suo - Mires and peat vol. 33 no. 4-5 artikkeli 9557
Pakarinen P., (1981) Aanaerobic peat as a nutrient sink in raised bogs Suo - Mires and peat vol. 32 no. 1 artikkeli 9518
Pakarinen P., Tolonen K. (1980) Leaching of Sulphur from surface peat Suo - Mires and peat vol. 31 no. 1 artikkeli 9501
Pakarinen P., Mäkinen A. (1978) Trace metal distribution in Ledum palustre Suo - Mires and peat vol. 29 no. 5 artikkeli 9484
Pakarinen P., Tolonen K. (1977) On the growth-rate and dating of surface peat Suo - Mires and peat vol. 28 no. 1 artikkeli 9466
Pakarinen P., Mäkinen A. (1976) Comparison of Pb, Zn and Mn contents of mosses, .. Suo - Mires and peat vol. 27 no. 4-5 artikkeli 9460
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Pakarinen P., (1975) Trophic classifications of peatlands Suo - Mires and peat vol. 26 no. 5 artikkeli 9445
Pakarinen P., (1974) Vegetation of tundra mires on Devon island, Canada Suo - Mires and peat vol. 25 no. 3-4 artikkeli 9428
Pakarinen P., (1974) Development of vegetation after fire in continen.. Suo - Mires and peat vol. 25 no. 1 artikkeli 9419
Pakarinen P., Tolonen K. (1971) Comparison between some methods of determining t.. Suo - Mires and peat vol. 22 no. 3-4 artikkeli 9386