Current issue: 58(1)

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Silva Fennica 1926-1997
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Articles containing the keyword 'kasvillisuusanalyysi'

Category : Article

article id 5205, category Article
Juha Suominen, Alfred Varkki. (1984). Lauhanvuoren kasvisto. Silva Fennica vol. 18 no. 1 article id 5205. https://doi.org/10.14214/sf.a15384
English title: Vascular plant flora of Lauhavuori Hill, Western Finland.
Original keywords: kasvisto; putkilokasvit; kasvillisuusanalyysi; Lauhanvuori; Etelä-Pohjanmaa; tulokaskasvit; alkuperäiset kasvilajit
English keywords: native species; vascular plants; vegetation analysis; Western Finland; flora; Ostrobothnia
Abstract | View details | Full text in PDF | Author Info

The Lauhavuori area is barren, consisting of sandstone and granite bedrock covered by coarse moraine and sand. The woodlands are dominated by Scots pine (Pinus sylvestris L.) and Calluna. The top of the hill, rising 230 metres above the sea level, is more fertile, as it was never covered by the ancient Baltic Sea. Numerous springs and spring brooks are bordered by herb-rich Norway spruce (Picea abies (L.) H. Karst.) woodlands and swamps. Although most of the peatlands are oligotrophic, several mesotrophic peatland plants occur, some southern, giving the peatlands a rather northerly character.

The study area is 8 by 12 km. According to the vegetation analysis, 310 species were identified, 208 of which were native to the area and 102 immigrants. The native species can be separated from the immigrants because the area is largely undisturbed.

The PDF includes a summary in English.

  • Suominen, E-mail: js@mm.unknown (email)
  • Varkki, E-mail: av@mm.unknown

Category : Article

article id 7037, category Article
O. J. Lakari. (1920). Tutkimuksia Pohjois-Suomen metsätyypeistä. Acta Forestalia Fennica vol. 14 no. 4 article id 7037. https://doi.org/10.14214/aff.7037
English title: Studies on forest site types in Northern Finland.
Original keywords: metsätyyppi; kasvupaikka; kasvillisuusanalyysi
English keywords: ground vegetation; forest site type; vegetation analysis
Abstract | View details | Full text in PDF | Author Info

The forest site classification system used in Finland is based on ground vegetation rather than the wood production capacity. A. K. Cajander has presented a detailed classification of different forest site classes in different parts of the country. This study focuses on the forest site types of Northern Finland, which are less well defined. The article presents detailed vegetation analysis and lists of plant species in different forest site types in Northern Finland. In contrast to southern parts of Finland, both the natural Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) H. Karst) stands are uneven-aged in the north. The forests are also relatively thin. There is a marked difference in height of trees between the richest and poorest sites, but the dominant trees of the same site type were of similar height both in the north and south part of the study area. The differences in the height of dominant trees seem to be smaller than in Southern Finland. Also, in windy areas prone to snow damage, climate conditions can affect tree growth more than the forest site type. In more sheltered areas forest site type determines forest growth.

The PDF includes a summary in German.

  • Lakari, E-mail: ol@mm.unknown (email)

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