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Vegetation Dynamics Depending on Ecological Particularities of Bozanta Mare (Maramures County-Romania) Tailing Pound. Case Study

Author(s): Monica Marian | Leonard M. Cozmuta | Camelia Varga | Anca M. Cozmuta | Eugen Nour

Journal: American Journal of Environmental Sciences
ISSN 1553-345X

Volume: 5;
Issue: 1;
Start page: 116;
Date: 2009;
Original page

Keywords: Tailing ponds vegetation | biological rehabilitation

The present study follows an ecological demarch of reintegration in the scenary through revegetation of an anthropic ground, consisting in a waste pond formed from the flotation activity of non-ferrous ores. Problem statement: To support the formation of a compact vegetal layer, having an anti-errosion and a restoration role, a preliminary study was required regarding the spontaneous settlement of different vegetal species. We have followed the specific floristic composition and the biodiversity on the waste pond, the manner of association of plant species, and the possible interractions with other species from the biocenosis (microorganisms and fungi). We have also studied the pace at which vegetal species settle, as well as the reciprocal influence, from the point of view of vegetation, with the neighbouring area, since the desideratum is the settlement of a vegetation similar to the natural one. Approach: The aim of the research is to draw a list of the vegetal taxa installed on the pond, as well as to detect some succession stages or some possible vegetal associations. We have established the share of different species in the vegetal layer on the waste pond through an analysis of the ecological preferences, of the geographical origin of plant species, of the cariological and bioform profile. All this was done to compare the possible vegetal associations which settle on such anthropic grounds with the neighbouring vegetation. The approach used was the classical one in fitosociology, recommended by the Central European Fitosociological School adapted to the pedo-climatic conditions in Romania. Results: Over 50 species of plants and fungi spontaniously settled have been listed, and we have followed their association as well as their distribution, compared to the microclimatical conditions of the waste pond. In this way,we have distinguished species with a large potential of revegetating highly polluted with heavy metals waste ponds and sites. Conclusions/Recommendations: Starting from this study, we may establish a formula of sustaining the vegetation and using the interractions among species in order to stimulate the settlement of a dense vegetation which might ensure anti-errosion protection and landscape integration.
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