Quantitative phytogeography of the Yukon Territory (NW Canada) on a chorological-phytosociological basis
✍ Scribed by Lausi, D. ;Nimis, P. L.
- Publisher
- Springer-Verlag
- Year
- 1985
- Tongue
- English
- Weight
- 898 KB
- Volume
- 59
- Category
- Article
- ISSN
- 1573-5052
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✦ Synopsis
This study is based on the analysis of the c]horological spectra from 19 vegetation types obtained from a numerical classification of ca. 400 phytosociological relev~s taken during a vegetation survey in the Yukon Territory (NW Canada).
All vegetation types are well characterized in terms of their chorological features. This allowed an ecological-historical interpretation of the vegetation in the study area. The distribution of the various chorological categories within the vegetation types is strongly correlated with the main environmental influences, whose action led to the present floristical and vegetational characteristics of the area, such as glaciation, fire, permafrost and water availability.
The results show how the phytosociological approach constitutes an effective methodological tool for clarifying the phytogeographical aspects in the historical-ecological interpretation of a large area.
* Nomenclature follows Hultbn (1968), otherwise author names are specified. ** ]•he field work was completed in the summer of 1978. We are grateful to Dr W. Stanek, Canadian Forestry Service, for coordination of the survey and for soil data, and to Prof. L. Orl6ci for organization. Partial financial support was received from the Italian C.N.R.