An alternative for environmental rehabilitation of areas degraded by clay extraction is reforestation with selected species and silvicultural practices to promote the establishment of stands. The objective of this study was the evaluation of the performance of Eucalyptus camaldulensis Dehen, E. pellita F. Muel, E. tereticornis Sm and E. robusta Sm in pure stands and mixed with "sabiá" (Mimosa caesalpiniifolia, Benth). This study was carried out on a dug area of 1.5 ha, saline soil, with average depth of 1.5 m, in Campos dos Goytacazes,RJ. The experiment was arranged in randomized blocks with four replications, in a factorial design with four eucalyptus species in pure stands and mixed with "sabiá". Plant performance was evaluated in terms of survival percentage, height (H), ground level diameter (GLD), breast height diameter (BHD), H/BHD ratio, surface area and fine root length ( 2mm). Twenty-four months after planting, E. pellita was proven unsuitable for planting in dug areas. The planting system did not affect the growth of the eucalyptus species. However, the stands mixed with "sabiá" showed a negative effect on E. robusta survival. Mixed planting of these two species is not indicated for the conditions of this experiment.
Eucalyptus; mixed plantings; fine roots; degraded area; seedling growth
