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Vegetation of the Angmagssalik District, Southeast Greenland, IV: Shrub, Dwarf Shrub and Terricolous Lichens

Flora / FaunaMonograph

Series: Bioscience (Monographs on Greenland subseries) Volume: 10

By: Fred JA Daniëls (Author)

78 pages, illustrations

Museum Tusculanum Press, University of Copenhagen

Paperback | Jan 1982 | #211508 | ISBN: 8763511479
Availability: Usually dispatched within 1-2 weeks Details
NHBS Price: £34.50 $44/€41 approx

About this book

Vegetation of the Angmagssalik District, Southeast Greenland, IV deals with part of the results of the Dutch phytosociological expedition in 1968 and 1969 to the Angmagssalik District, Southeast Greenland. Shrub, dwarf shrub and terricolous lichen vegetation is treated here. The general part contains a description of the Angmagssalik District with emphasis on the applied methods.

The vegetation has been studied according to concepts of the French-Swiss School. The typology is based on about 250 records. The procedure of differentiation and classification of plant communities is discussed. The term "decisive" differential taxon is introduced and defined. The association concept is considered from a regional point of view. The plant communities are arranged in a floristic hierarchic system.

Concerning habitat factors, the altitude a.s.l., slope and wind direction were measured. Other factors were roughly estimated. The soil types are indicated. The following part contains a discussion of the vegetation units, with their floristic composition and physiognomy, habitat and distribution, and syntaxonomic position. This includes 24 vegetation units, 1 complex of communities, 11 communities and 12 associations. These are designed to the classes Oxycocco-Sphagnetea, Scheuchzerio-Caricetea, Betulo-Adenostyletea, Loiseleurio-Vaccinietea, Carici-Kobresietea, Salicetea herbaceae and Juncetea trifidi. Eight new associations and 1 new alliance are presented. Some syntaxa have been revised or validated.

The classification by Molenaar (1976) of mire vegetation and chionophytic herb communities is discussed and a new classification is proposed. Dwarf shrub vegetation with Empetrum hermaphroditum and/or Vaccinium microphyllum on acid, mainly mineral soil is extremely varied in composition and physiognomy and is considered a zonal formation, which largely determines the aspect of the region. The Empetrum-Vaccinium community is the climax vegetation of the district.

The greater part of the communities and association can be assigned to alliances described from Scandinavia, and the phytosociological relationship with that region is emphasized. Only the Dryadion integrifoliae and the Cladonio-Viscarion all. nov. are not known from Scandinavia. The vegetation of the Angmagssalik District has its own character, as shown on the association level by the Sphagno-Salicetum, the Thododendro-Vaccinietum, the Gymnomitrio-Loiseleurietum, the Carici-Dryadetum and the Cladonio-Viscarietum (all new), which are actually restricted to the area. The other 7 associations are also found at the southern and western coasts of Greenland. most vegetation types (associations and communities) have a lowarctic-oceanic distribution. A few types are also found in Iceland and Scandinavia.


Contents

Introduction
General part
The plant communities
Shrub and related dwarf shrub vegetation
Dwarf shrub vegetation on strongly to moderately acid, mainly mineral soils
Dwarf shrub vegetation on weakly acid to neutral mineral soils
Terricolous lichen communities
Acknowledgements
Postscript
References
Appendix 


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