The behavior of root system in the process of soil construction in degraded areas varies among individuals, species and communities. To evaluate this behavior, a study was conducted in a region named Costa Verde, municipal district of Itaguaí, State of Rio de Janeiro, using subsoil from a reclamation area with similar soil-climatic characteristics subjected to three different species compositions that can influence the ecosystem and soil construction. There was no difference for total fine root production at 30 cm depth, although the vegetation with the greatest functional and species diversity most contributed to ecosystem construction.
Fine roots; rehabilitation; degraded area
