Ecology and regeneration of forest communities on the alluvial fan ...

-Results-
The second ordination bases on importance values <strong>of</strong> 59 relevés <strong>and</strong> shows a similar
pattern as DCA I (Fig. 4.22). All <strong>communities</strong> appear clearly differentiated along the
first two ordination axes. Altitude, soil moisture <strong>and</strong> soil structure are strongly
correlated to the first axis (Table 4.4), whereas the second axis shows no significant
correlation to any <strong>of</strong> the measured site parameters.
4.4 Ordination results (Successional trends)
Rejuvenation has already been mentioned in terms <strong>of</strong> single species recruitment (see
chapter 4.2). To additionally reveal successional trends within the <strong>communities</strong> a
NMDS analysis was made.
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4
6
2
1
7
3
Fig. 4.24 Ordination diagram (NMDS) comparing tree species composition <strong>and</strong> respective <strong>regeneration</strong>
within 59 sampling plots. Same symbols represent same <strong>communities</strong>. Canopy importance is indicated in
black, rejuvenation importance in red. Equisetum telmateia-Alnus barbata com. (1), Fraxinus excelsior-
Pterocarya pterocarpa com. (2), Swida sanguinea-Populus alba com. (3), Oplismenus undulatifolius-
Acer velutinum com. (4), Quercus robur-Carpinus betulus com. (5), Quercus iberica-Carpinus orientalis
com. (6), Scleropoa rigida-Populus nigra com. (7)
-<strong>Ecology</strong> <strong>and</strong> <strong>regeneration</strong> <strong>of</strong> <strong>forest</strong> <strong>communities</strong> on the alluvial fan near Qakh (Northwestern Azerbaijan)-
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