The aim of this research was the reinstallation of forest vegetation on very high polluted grounds - pollution caused by heavy-metals, the stabilization of high eroded soils caused by ashes. The actual research level: the ecological reconstruction started in 1988, with a surface of 168 ha in the first 10 years, now the reconstructed surface is about 644 ha. Many tree species were used, all of them, species with good resistance on pollution. Their resistance level was also investigated. After 20 years we are able to recommend the most resistant species. Methods and materials: the careful selection of the introduced species, the land preparation in order to plant the seedlings, the administration of fertilizer and amendments.  The newness of the research: the ecological reconstruction on high heavy-metals polluted land in Copsa Mica is a premier in our country. Only ICAS Bucharest and the Forest Administration Sibiu researched this kind of ecological reconstruction. The achievement level in the domain: the over 20 years experiments continues on new land and on very polluted enclaves, where the used species did not achieve good results. The research limits: the insufficient assets for the ecological reconstruction. Now this researches are supported by the state budget and very few by the principal polluting agent. The practical implication of the research: the installation of forest vegetation on this polluted land, the identification of the most resistant species recommended to be used in conditions of high pollution and degradation of soil. The originality of the study: is represented by the experiment by itself. The importance of the study: the practical implication of the experiment and the dimensions of surfaces.

pollution; ecological recosntruction; forest vegetations

Presentation: oral