THE ECOLOGICAL CHARACTERIZATION OF THE FORESTRY ASSOCIATIONS FROM THE MIDDLE STREAM OF THE NIRAJ VALLEY (ROMANIA, MUREŞ COUNTY)
Journal Title: Analele Stiintifice ale Universitatii Alexandru Ioan Cuza din Iasi, Serie noua, Sectiunea II a. Biologie vegetala - Year 2013, Vol 59, Issue 2
Abstract
The aim of this study was the qualitative structure assessment of the forestry associations sustaining a large number of rare or declining bird species, reason that the Special Protection Area was established. These are the first steps in a long term conservation of species and their habitats. Number of vascular plants identified: 50-Salicetum triandrae, 98-Salici-Populetum, 59-Carpino-Fagetum, 118-Carpino-Quercetum petraeae, 75-Genisto tinctoriae-Quercetum petraeae subass. melicetosum uniflorae, 112-Pruno spinosae-Crataegetum. Phanerophytes are dominating, followed by hemicryptophytes. The calculated altitudinal indices show a moderate human impact, excepting riverine forests and willows with a strong anthropogenic pressure. From geographic point of view the Nordic elements dominate. The associations provide shelter for relicts (Sanicula europaea, Cnidium dubium), Carpathian Endemism (Cardamine glanduligera), Romanian Red List species (Neottia nidus-avis, Platanthera bifolia, Cephalanthera damasonium, Lilium martagon), species with a restricted areal of distribution (Lathyrus hallersteinii, Crocus vernus, Helleborus purpurascens, Centaurea phrygia ssp. indurata), Carpathian endangered species (Erythronium dens-canis, Adonis aestivalis), IUCN red list species (Alnus glutinosa). The ecologic indices reflect the general and local values of the environmental factors. The diploid index shows the pioneer stage of willow formations. All economic categories were revealed, melliferous plants having the highest values.
Authors and Affiliations
ERZSÉBET DOMOKOS
Keywords
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