Classification of basiphilous pine forests in Telemark, SE Norway: a numerical approach

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Abstract
The basiphilous pine forests in southern Telemark, SE Norway, have previously been classified according to the ordinary phytosociological methods of the Braun—Blanquet system. The same material was later treated by numerical analysis, i.e., TABORD—classification and the ordination technique ‘reciprocal averaging’. No significant differences were found between the numerical and the non—numerical classification except for the classification of some transitional communities. Ordination by ‘reciprocal averaging’ gave a useful complement to the TABORD classification, and re—leves and species were distributed along interpretable gradients (i.e., along a dry—wet gradient and along a gradient from forest—rim conditions to forest conditions).