Case Study – The Mogiana Quarry Reclamation

摘要

This article presents a proposal for the rehabilitation of the mined area of the Mogiana quarry. ThernMogiana quarry produces material used in civil construction and is situated in the Brazilian State ofrnS?o Paulo in the kilometre six of the Mogí Mirim - Itapira highway.rnThe mineral exploitation in the Mogiana quarry provokes modifi cations in the environment such asrnalterations in the relief, vegetation, quality of the air, water and landscape. Through previous study ofrnthe area it was verifi ed that after the closure of the exploitation the mine should be occupied mainlyrnby pasturage. At the closing of the mine the exploitation benches, berms and slopes in general asrnwell as the surrounding areas should be covered with a layer of soil and vegetated with native speciesrnin order to mitigate the negative impacts caused by the mine. The rehabilitation project of the arearnis based on the probable future use of the area, located between agricultural cultivations and cattlerncreation. The great alteration of the relief and soil would make future use of the area for agriculturerndiffi cult. It is more suitable t0 animal creation, mainly cattle. The high and thick rock slopes originatedrnby the mining should be covered by vegetation, where possible, to reduce the negative visual impact.rnObviously several measures will be necessary to reduce the impacts on the environment duringrnmining. The fi nal and defi nitive reclamation will only be possible after abandonment of the area. Thernmain aspects of this reclamation process will be discussed in this paper.