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Analysis of the spatial distribution of candeia (Eremanthus erythropappus (DC.) MacLeish) under the seed-tree management system

Candeia (Eremanthus erythropapus) is a woody species that produces wood for various uses and with high economic value. This fact has caused an uncontrolled exploitation of the species. One way to reduce the exploitation impact of candeia tree is to elaborate a sustainable management plan. Spatial evaluation is important to analyze the ecological behavior of the species. The results may help the comprehension of the spatial dependency and the pattern of distribution. The objective of this study was to analyze the horizontal spatial structure of Eremanthus erythropapus (candeia) under a tree-seed system, in trials installed in august 2003 in the district of Aiuruoca, in the State of Minas Gerais. The spatial analysis of the regeneration and the seed-trees were performed by Ripley s K, using their geographic coordinates. The results indicated that the regeneration presented an aggregated distribution pattern, confirming the capacity of candeia to form mosaics in the vegetation, originating candeia predominant forests. The adult plants presented an aggregated pattern moving into a random pattern. There was no dependency relationship between adult plants and regeneration.