PLANT SPECIES FOR REVEGETATION OF OVERBURDEN ROCK AND IRON MINE SPOIL OF THE ALEGRIA IRON MINE, MARIANA, MINAS GERAIS STATE, BRAZIL

Authors

  • Gilson Pereira Silva
  • Maurício Paulo Ferreira Fontes
  • Liovando Marciano da Costa
  • Victor Hugo Alvarez Venegas

Keywords:

Iron mining revegetation, irrigation, grasses, legumes

Abstract

An experiment was conducted to verify the potentiality of some plant species to revegetate areas under the influence of iron mining. Field conditions were simulated laying mining overburden (soil, phyllite and rock) over the mine spoil to cultivate the plants. Four plant species and two irrigation frequencies were tested for pile covering and plant tops dry matter production. Plants showed larger dry matter production when substrate was either soil or mixtures in which soil was one of the components. Among the plants utilized, Brachiaria brizantha and Melinis minutiflora produced the larger amounts of dry matter as compared to Cajanus cajan and Panicum maximum. The frequency of irrigation markedly affected plant growth and development. P. maximum was the species with the least decrease n dry matter production with the reduction of irrigation frequency.

KEY-WORDS: Iron mining revegetation; irrigation; grasses; legumes.

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Author Biography

Gilson Pereira Silva

Fesurv ? Universidade de Rio Verde, Caixa Postal 104, CEP 75901-970, Rio Verde, GO. E-mail: gilson@fesurv.br

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Published

2007-10-24

How to Cite

SILVA, G. P.; FONTES, M. P. F.; COSTA, L. M. da; VENEGAS, V. H. A. PLANT SPECIES FOR REVEGETATION OF OVERBURDEN ROCK AND IRON MINE SPOIL OF THE ALEGRIA IRON MINE, MARIANA, MINAS GERAIS STATE, BRAZIL. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 36, n. 3, p. 165–172, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/2038. Acesso em: 7 jul. 2024.

Issue

v. 36, n. 3, Sep./Dec. 2006

Section

Research Article

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