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首页> 外文期刊>Nordic Journal of Botany >Coastal heath vegetation in central Norway
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Coastal heath vegetation in central Norway

机译：挪威中部沿海希思植被

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This description of heath vegetation on the outermost coast of Trondelag was based on 354 sample plots and 243 taxa. TWINSPAN, DCA and Ellenberg's indicator values were used to distinguish the vegetation types and to assess gradients in the vegetation. The aims were to make a phytosociological classification of the open coastal heath vegetation, find floristic gradients, compare the heath vegetation of central Norway with similar vegetation elsewhere and to evaluate the conservation values. The studyarea belongs to the southern boreal vegetation zone, and comparisons were made to Norwegian boreal and boreonemoral heaths, and to the sub-montane heaths in the system of British plant communities. In the multivariate analyses, the data set was first separated on the poor-rich gradient. The four main units were separated by the second division of TWINSPAN and a further 16 communities were described. The poor heath communities had few vascular plants and a rather high number of bryophytes and lichens. The opposite was the situation in rich heaths. The studied heaths lack a number of typical species from further south in Europe, while some other species are common, that are absent or only occasionally occurring in coastal heath vegetation in nemoral andboreonemoral zones; e.g. Arctous alpinus, Arctostaphylos uva-ursi, Betula nana, Chamaepericlymenum suecicum, Empetrum nigrum ssp. hermaphroditum, Rubus chamaemorus, Trientalis europaea, Vaccinium uliginosum, Carex nigra, Eriophorum angustifolium and E.vaginatum. A large number of western species occurs occasionally; Carex binervis is an exclusive, characteristic species for the heaths. In the European hierarchical phytosociological system, the communities were classified in five alliances: Erico— Sphagnion, Ericion tetralicis, Myrtillion boreale, Loiseleurio-Vaccinion and Kobresio-Dryadion. The rich heath types had the highest conservation value.
机译：这个描述的健康植被外层Trondelag海岸是基于354年样本块和243个类群。Ellenberg指标的值被用来区分植被类型和评估渐变的植被。做一个phytosociological分类的开放沿海希思植被,找到植物区系梯度,比较健康植被挪威中部具有类似植物在别处和评估保护值。studyarea属于南方北方植被区,和比较了挪威北方和boreonemoral荒野,系统中的sub-montane荒野的英国人植物群落。数据集poor-rich首次分离梯度。第二部门TWINSPAN和16社区。社区有几维管植物和一个相当大量的苔藓植物和地衣。丰富的荒野的情况正好相反。研究了荒野缺乏典型的物种的数量从欧洲南部,而其他一些物种是很常见的,或者只缺席偶尔发生在沿海希思植被在适林的andboreonemoral区;娜娜,Chamaepericlymenum suecicum, Empetrum初步ssp。Trientalis欧洲,Vaccinium uliginosum,苔属植物nigra, Eriophorum angustifolium and E.vaginatum .大量的西方物种发生偶尔;特有物种的荒野。欧洲分级phytosociological系统,社区在五个分类Myrtillion boreale, Loiseleurio-Vaccinion和Kobresio-Dryadion。最高的保护价值。

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