Reabilitação de córregos urbanos: uma análise histórica e comparativa em Belo Horizonte, MG

Abstract

Interventions in urban streams in Brazilian cities commonly adopt the model of channeling and creation of sanitary avenues, in order to mask and adapt water bodies to urban dynamics. Alternative methods that seek to reintegrate those into the urban landscape were implanted in the municipality of Belo Horizonte in 2008 with the Drenurbs program. The objective of this work is to evaluate the historical evolution of the water quality of three streams revitalized by this Program, as well as to compare their current situation with reference streams of the Metropolitan Region of Belo Horizonte, in order to evaluate if these works allowed the rapprochement of weakened water bodies to a model phytosanitary condition. The results show that the works carried out were effective to significantly increase the environmental and water quality of the rehabilitated streams, but due to the strong urbanization of the areas close to the parks, they didn’t reach the level of the reference streams. Despite this, the results are satisfactory for the main purpose of the Program.