DIVERSITY, DISTRIBUTION AND ECOLOGY OF THE FRESHWATER NATURAL HABITATS FROM SOUTHERN OF OLTENIA, ROMANIA

Published in Scientific Papers. Series A. Agronomy, Vol. LIX
Written by Mariana NICULESCU

In this paper we made a general presentation of the most important freshwater natural habitats from the Danube and Jiu floodplains, part of Southern of Oltenia, Romania. In the researched area there are the following Natura 2000 habitats: 3130 - Oligotrophic to mesotropic standing waters with vegetation of the Littorelletea uniflorae and/or Isoëto-Nanojuncetea, 3140-Hard oligomesotrophic waters with benthic vegetation of Chara spp., 3150- Natural eutrophic lakes with Magnopotamion or Hydrocharition-type vegetation, 3160- Natural Dystrophic Lakes and Ponds, 3260- Watercourses of plain to montane levels with the Ranunculion fluitantis and Callitricho-Batrachion vegetation, 3270- Rivers with muddy banks with Chenopodion rubri p.p. and Bidention p.p. vegetation. Six types of freshwater natural habitats of conservative interest have been identified on the Southern of Oltenia, in the Danube and Jiu floodplains (D. Gafta, O. Mountford coord., 2008). These natural habitats are represented by hydrophilous, hygrophylous and mesohygrophylous plant communities. The plant communities that edify the freshwater natural habitats from this area have been analyzed and characterized from the chorological, ecological point of views. They were also examined according to their floristic composition and physiognomy, after the conservation status and human impact. Of the rare and vulnerable species we can mention: Vallisneria spiralis, Utricularia minor, Nymphaea alba, Azolla filiculoides, Typha minima. The phytodiversity of the freshwater natural habitats from Sotheren of Oltenia is endangered because the human impact is very high, although this area it is included in the important protected areas from Romania.

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NICULESCU M. 2016, DIVERSITY, DISTRIBUTION AND ECOLOGY OF THE FRESHWATER NATURAL HABITATS FROM SOUTHERN OF OLTENIA, ROMANIA. Scientific Papers. Series A. Agronomy, Vol. LIX, ISSN 2285-5785, 116-121.


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