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| Silva,Érica Tomé da; Melo,Wanderley José de; Teixeira,Sandra Tereza. |
| Mining is an activity that tends to degrade the environment. The restoration of mining areas, aims to accelerate and improve the succession process according to its future use. The objective of this work was to rehabilitate a soil degraded by tin mining activities in the Amazon Basin (Jamari National Forest, State of Rondônia) with the application of water treatment sludge (WTS), and verify the effect of sludge on values of pH (CaCl2 0.01 mol L-1), organic matter, P, Ca, Mg, K, H+Al, and soil micronutrient contents when cultivated with native plants, legumes, and grass species. A factorial (3 X 5) experimental design was used to optimize the rehabilitation of these areas including three N rates (100, 200, and 300 mg N kg-1 soil supplied by WTS), five plant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil fertility; Micronutrient; Tin mining; Soil reclaiming; Residue. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000600008 |
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| Teixeira,Sandra Tereza; Melo,Wanderley José de; Silva,Érica Tomé. |
| The application of water treatment sludge (WTS) to degraded soil is an alternative for both residue disposal and degraded soil reclaim. This study evaluated effects of the application of water treatment sludge to a Typic Hapludox soil degraded by tin mining in the National Forest of Jamari, State of Rondonia, Brazil, on the content of heavy metals. A completely randomized experimental design with five treatments was used: control (n = 4); chemical control, which received only liming (n = 4); and rates D100, D150 and D200, which corresponded to 100, 150 and 200 mg of N-sludge kg-1 soil (n = 20), respectively. Thirty days after liming, period in which soil moisture was kept at 70% of the retention capacity, soil samples were taken and analyzed for total and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil reclaim; Tin mining; Mehlich 1; Environmental pollution. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000500016 |
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