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Vegetasjon og naturgrunnlag i Tveitaneset Naturreservat, Rogaland

Bakkevig, Sverre
Journal article, Peer reviewed
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URI
http://hdl.handle.net/11250/181569
Date
1981
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  • Articles (AmS) [68]
Original version
Bakkevig, S. (1981). Vegetasjon og naturgrunnlag i Tveitaneset Naturreservat, Rogaland. Blyttia, 39, 107-113  
Abstract
Tveitaneset, an exposed point in Nedstrandsfjorden,

Rogaland county, was in 1977 protected by law due to the occurrence of oceanic

evergreen forests typical of the district. The

bedrock consists of mica schist, but without

especially high calcium content; the flora is therefore dominated by mainly oligotrophic

species. The climate is humid, with a yearly

precipitation of about 1751 mm and a favourable combination of high summer temperatures

(slightly above 16oC in July) and mild winters

(January mean temp. above 0oC). Along a dry-wet gradient, plant communities either

belonging to or closely related to the following

pine forests are found. Cladonio-Pinetum (and

a moss-dominated variety), Barbilophozio-

Pinetum, Vaccinio-Pinetum, and Vaccinio uliginosi-Pinetum. The community names refer

to Kielland-Lund (1973). Lack of differential

species makes an exact phytosociological

determination difficult. This is a problem often

met with in Western Norway. The seashore mainly consists of exposed cliffs, with an

interesting transition through boulder and

stone shores to a small sand beach in the bay

east of Tveitaneset. Amongst the total of 91

species of vascular plants found are Circaea

intermedia, Goodyero repens, and several

oceanic or suboceanic species llke Ilex aquifolium,

Blechnum spicant, Erica tetralix,

Carex binenis, Narthecium ossifragum.
Description
Gjengitt med tillatelse fra Norsk Botanisk Forening.
Publisher
Norsk Botanisk Forening
Journal
Blyttia

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