Aplicação de técnicas sustentáveis para a recuperação de solos degradados por voçorocamento

Abstract

The processes of environmental degradation are part of the evolutionary process of society, so that as the population grows, there is an increased use of natural resources, often causing them to exhaustion. On the processes of soil degradation arising from various types of erosion it is necessary the search for alternatives for recovery of these areas, and the proposition of new roles for these locations. Soon, the recovery of degraded areas (RAD) enable the functionality of the area and the return of their functions, as well as minimize the process of opening of native areas. In order to assess the efficiency of a recovery technique based on the use of inert waste under the quality of a Red Latosol in the process of accelerated voçorocamento in the municipality, Piauí. The RAD technique was developed in the area of voçorocamento located in rural municipality. The location was selected because of the representativeness of the advanced erosion processes that occur in the region. Analyses were undertaken of major environmental diagnostic attributes both physical attributes and how chemicals for comparison after adoption of the recovery process. The erosive process lies in a high level of degradation, with severe loss of sediment and strong flow of flood in the rainy season in the region. The gully has 13.70 m length, width of 8.50 meters and depth of 1.60 meters, your loss of sediments approximately 115.08 m ³. There was significant variation in the density of the soil in the two areas analyzed, native forest presented greater values in relation to moisture voçorocamento area. We collected used tires from tire, auto body shops and warehouses. The tires were arranged inside the gully to complete the same by decreasing the amount of soil cover. The gully studied are in an advanced stage of degradation, the soil is already exposed, and vulnerable to heavy to carry more and more parties. There is still the path taken so linearly due to the velocity of water worsening the soil features. The traffic of vehicles, animals and people in the area are factors that have aggravated and contributed to the detachment of soil with erosional features.