Marisia - Maros Megyei Múzeum Évkönyve 32-34. (2014)
Botany
Elena Alina ROVINA, Livin ROVINA, Monica NEBLEA - hill beech forest on superficial soils with limestone substrate (i). Most of the forests belong to the fundamental natural type which indicate that in most cases their composition was not altered by the introduction of alien species. Also, there are forests situated in the karst area that occupy approximately 23% of the forest area (functional category 1-2 k, 1—4 c and 1—5 j). The forests that belong to the 1—4 j and 1—5 1 category present ecological importance because of the valuable fauna. Even if the forests from the karstic area have a low productivity, these represent a decisive factor in ecological conservation of karst phenomenas and landscape. After deforestation were installed secondary grasslands that occupy a large area. Sub-Mediterranean influence determined the installation of typical shrubs (“sibliacuri”) on calcareous rocks at low altitudes. Coenoses with Syringa vulgaris, Fraxinus ornus and Sorbus borbasii that belong to the Asplenio-Syringetum vulgaris association, there are very common in gorges (Crivadia Gorges). Results and discussions Gradi§tea Muncelului Cioclovina Natural Park overlaps two Natura 2000 sites, with provisional regime of special areas of conservation, according to Order no. 1964/2007 concerning the creation of the protected area of sites of community importance as part of the European ecological network Natura 2000 in Romania: a) ROSPA0045, Special Protection Area with an area of 38.060 ha, declared by H.G. 1284/2007 regarding the establishment of Special Protection Area as part of the European ecological network Natura 2000 in Romania, with subsequent amendments. b) ROSCI0087, Site of Community Importance with an area of 39.818 ha declared by H.G. 1964/2007 regarding the creation of the protected area of sites of community importance as part of the European ecological network Natura 2000 in Romania, with subsequent amendments. ROSCI0087 presents 16 natural habitats of community importance, six of them being priority habitats:- 6110* Rupicolous calcareous or basophile grasslands of the Alysso-Sedion albi-,- 6120* Xeric sand calcareous grasslands;- 6210 Semi-natural dry grasslands and scrubland facies on calcareous substrates (Festuco — Brometalid)-,- 6230* Species-rich Nardus grasslands, on siliceous substrates in mountain areas (and sub-mountain areas, in Continental Europe);- 6410 Molinia meadows on calcareous, peaty or clayey-silt-laden soils (Molinion caeruleae);- 6430 Hydrophilous tail-herb fringe communities of plains and of the montane to alpine levels;- 6520 Mountain hay meadows;- 8240* Limestone pavements;- 8310 Caves not open to the public;- 9110 Luzulo-Fagetum beech forests;- 9130 Asperulo — Fagetum beech forests;- 9150 Medio-European limestone beech forests of the Cephalanthero-Fagion;- 9180* Tilio-Acerion forests of slopes, screes and ravines;- 91E0* Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae)-, 82
