On the character and develop­ment of the raised bogs in Espoo, Southern Finland — exemplified by the Kotasuo bog

Korhola, Atte

In English

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Atte Korhola

Espoon keidassoiden luonteesta ja kehityksestä — esimerkkinä Nupurilan Kotasuo

Korhola A. Espoon keidassoiden luonteesta ja kehityksestä — esimerkkinä Nupurilan Kotasuo.

English title: On the character and development of the raised bogs in Espoo, Southern Finland — exemplified by the Kotasuo bog

Tiivistelmä

Present character and natural history of 13 raised bogs in Espoo, S. Finland were studied by means of morphological, ecological and palaeo-eco-logical methods including 11 radiocarbon datings. Special attention was paid to the hydroseral development of Kotasuo bog by using plant and Cladoceran remains in the interpretation of ancient lake basins terrestriali-zation. The bogs were divided into three morphological groups according to their gross morphological (Grossform) features. The main type of mire formation was showed to be terrestrialization. Filling-in of the ancient lake basins was most common during the late boreal and early subboreal periods. The first mire type in Kotasuo was floristically rich, luxurious Phrag-mites-Typha-Carex fen. Keywords: Cladoceran stratigraphy, mire evolution, mire stratigraphy, mire types, terrestrialization

Avainsanat
mire types; Cladoceran stratigraphy; mire evolution; mire stratigraphy; terrestrialization

Tekijä