ABSTRACT An alternative for recovery of areas degraded by coal mining is revegetation with rapidly growing leguminous trees, which often do not establish in low fertility soils. The objective of this study was to evaluate the efficiency of native rhizobia isolated from coal mining areas in the nodulation and growth of leguminous trees. We isolated 19 strains of rhizobia from a degraded soil near Criciúma, SC, Brazil, and evaluated the nodulation and growth-promoting capacity of the inoculated isolates for bracatinga […]

The succession of events after revegetation has rarely been studied. A plant consortium with a good initial development may come to be inadequate later, resulting in exposed soil, susceptible to the weathering forces. The objective of this study was to monitor characteristics associated with vegetative stabilization and, in the long term, the appearance of new cover forms or soil exposure in response to planting grasses and legumes on a steep road slope alongside a highway. After four years of recovery, […]

The use of organic residues has been shown to be effective for the revegetation of mined areas. However, data on the quality of mine spoils treated with organic residues are rather scarce. This study aimed to evaluate the spoil quality of a mined area in the Brazilian Federal District treated with 250 Mg ha-1 of domestic sewage sludge and covered with herbs grown from seeds. The soil attributes used for the evaluation were bulk density, total porosity, available water capacity, soil resistance […]

The degradation of soils with high sand content, in the southwest of the state of Rio Grande do Sul, is due to the vegetal cover withdrawal, forming sandy areas called “areais”, which pose a risk to animal husbandry and the prairie ecosystem. A technique of revegetation with cover crops such as Avena strigosa Schieb. and Lupinus albescens H. et Arn., was developed to reduce the soil particle movement by eolic erosion. The experiment was carried out on a Quartzipsament soil, […]

The effects of lime rates on the growth of Eucalyptus camaldulensis in soil mixtures with increasing proportions of Zn and Cd contamination were evaluated. The experiment was carried out under greenhouse conditions and the metal contamination levels were obtained by mixing 0, 25, 50, and 100% of a contaminated soil with a non-contaminated one used as diluter. Lime rates were 0, 10, 20, 40, and 80 t ha-1 and the experiment was conducted in pots containing 1.5 kg of soil with treatments arranged […]