Juha-Pekka Hotanen , Harri Vasander

Eteläsuomalaisten metsaojitettujen turvemaiden kasvillisuuden numeerinen ryhmittely

Hotanen J.-P., Vasander H. Eteläsuomalaisten metsaojitettujen turvemaiden kasvillisuuden numeerinen ryhmittely.

English title: Post-drainage development of vegetation in southern Finnish peatlands studied by numerical analysis

Tiivistelmä

The vegetation data from virgin and corresponding drained mire site types collected by Juhani Sarasto in the 1950's were reanalyzed using DCA and TWINSPAN. The main gradient in the material was a complex gradient called the mire margin-mire expanse -effect. During secondary succession, after forest drainage, the variation of mire site types diminished as the importance of hydrology decreased. The difference between the vegetation of treeless plus composite and forested mire site types could still be detected after the site types had reached the drained peatland forest type phase in their post-drainage succession. Keywords: Classification, ordination, succession

Avainsanat
succession; Classification; ordination

Vastaanotettu 31.10.2017 Julkaistu 1.1.1992

Katselukerrat 1365

Saatavilla http://suo.fi/article/9687 | Lataa PDF

---