Ecological restoration in gravel mining areas in Southern Brazil
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.007.0008Keywords:
Gravel extraction deposit, Recovery of degraded areas, Natural regeneration, Forest waste, Nucleation techniquesAbstract
The practice of forest restoration has become increasingly necessary, since the loss of forest surface, caused mainly by human activities, has left the landscape highly fragmented. In this study, the evolution of the ecological restoration process using nucleation techniques in two areas with different soil conditions (with and without deposition of forest residues) was evaluated after mineral gravel extraction. The hypothesis is that the applied nucleation techniques are efficient, as well as, the positive use of forest waste, being a promising methodology for the restoration of areas mined by gravel. Three nucleation techniques (Gallaria, Perch and Soil Transposition) and natural regeneration in both areas were evaluated, in which one deposition of forest residues occurred before the implementation of the techniques. It was possible to conclude that the areas are evolving and that the use of the waste is an efficient method and acts in a beneficial way for the ecological succession of the environment. However, it is important to highlight that the application of nucleation techniques are mainly responsible for the constant evolution of these areas. Even with satisfactory results, it is noteworthy that continued monitoring in these areas is necessary.
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