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| Moreira,Cindy Silva; Alleoni,Luís Reynaldo Ferracciú. |
| The adsorption of heavy metals in soils affects their behavior in the environment and their bioavailability to plants. The knowledge of the adsorption mechanisms in competitive systems allows a more realistic evaluation of the metals' behavior in the soil than the single metal adsorption. The objectives of this study were (i) to evaluate Cd, Cu, Ni, and Zn adsorption in 14 surface samples (0-0.2 m) of representative soils of the Brazilian humid-tropical region, in competitive and non-competitive systems, and (ii) to establish metal affinity sequences for each soil, based in the maximum adsorption capacity (MAC) estimated by the Langmuir model. The Rhodic Eutrudox, the Kandiudalf Eutrudox, the Arenic Hapludalf, the Arenic Hapludult and the Typic Argiudoll... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heavy metals; Competition; Tropical soil. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000300008 |
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| Cerri,Carlos Clemente; Bernoux,Martial; Maia,Stoecio Malta Ferreira; Cerri,Carlos Eduardo Pellegrino; Costa Junior,Ciniro; Feigl,Brigitte Josefine; Frazão,Leidivan Almeida; Mello,Francisco Fujita de Castro; Galdos,Marcelo Valadares; Moreira,Cindy Silva; Carvalho,João Luis Nunes. |
| National inventories of anthropogenic greenhouse gas (GHG) emissions (implementation of the National Communications) are organized according to five main sectors, namely: Energy, Industrial Processes, Agriculture, Land-Use Change and Forestry (LUCF) and Waste. The objective of this study was to review and calculate the potential of greenhouse gas mitigation strategies in Brazil for the Agricultural and LUCF. The first step consisted in an analysis of Brazilian official and unofficial documents related to climate change and mitigation policies. Secondly, business as usual (BAU) and mitigation scenarios were elaborated for the 2010-2020 timeframe, and calculations of the corresponding associated GHG emissions and removals were performed. Additionally, two... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: IPCC; EX-ACT; Emission reduction; Carbon fixation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100015 |
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