Compositional gradients in the forest vegetation of Finland
Compositional gradients of forest vegetation in Finland were determined using detrended
correspondence analysis, and ecologically interpreted with regression analysis. The data
were collected in association with the 8th National Forest Inventory, and they comprised
1514 samples and 472 species, covering the whole forested land area of Finland. In the
ordination space the first, very stable axis (DCA1) was much stronger than the following
three, more unstable axes (DCA2‐4). Site fertility (reflected by the forest site type series) and …
correspondence analysis, and ecologically interpreted with regression analysis. The data
were collected in association with the 8th National Forest Inventory, and they comprised
1514 samples and 472 species, covering the whole forested land area of Finland. In the
ordination space the first, very stable axis (DCA1) was much stronger than the following
three, more unstable axes (DCA2‐4). Site fertility (reflected by the forest site type series) and …
Abstract
Compositional gradients of forest vegetation in Finland were determined using detrended correspondence analysis, and ecologically interpreted with regression analysis. The data were collected in association with the 8th National Forest Inventory, and they comprised 1514 samples and 472 species, covering the whole forested land area of Finland.
In the ordination space the first, very stable axis (DCA1) was much stronger than the following three, more unstable axes (DCA2 ‐ 4). Site fertility (reflected by the forest site type series) and latitude had strongest covariation with the ordination space, followed by a number of variables primarily related to forest age or tree stand volume. Fertility variables were most closely parallel with DCA1, latitudinal ones with DCA1 and DCA2, and successional variables with DCA3.
The results indicate that compositional overlap of sites classified into different Caj ander site types is considerable.
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