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de Lima Marllos Santos Araujo Maristela Machado Berghetti Álvaro Luís Pasquetti Aimi Suelen Carpenedo Costella Claudia Griebeler Adriana Maria Somavilla Luiza Michelon dos Santos Osmarino Pires dos Reis Teixeira Valente Brígida Maria 《New Forests》2022,53(1):161-179
New Forests - The forestry sector has been able to sustainably satisfy the increasing global demand for forest products, thereby positively impacting the economy, while mitigating climate change.... 相似文献
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The movement of the organophosphate nematicide-insecticide ethoprophos (ethoprop; O-ethyl S,S-dipropyl phosphorodithioate) and the carbamate insecticide-nematicide carbofuran (2,3-dihydro-2,2-dimethylbenzofuran-7-yI methylcarbamate) was studied under steady-state flow in small-scale laboratory soil columns. Miscible displacement column experiments, mass balance calculations, and batch incubation studies furnished information on insecticide sorption and degradation processes that occur during transport through soil. Miscible displacement studies demonstrated that ethoprophos degradation could be described as first-order and that both insecticides exhibited non-equilibrium sorption. Both batch and miscible displacement results showed ethoprophos to be more strongly sorbed by soil than carbofuran. Measured equilibrium sorption coefficients were 1.29 cm3 g?1 for ethoprophos and 0.29 cm3 g?1 for carbofuran on a Riverhead soil (0.011 organic carbon fraction); 035 cm3 g?1 for carbofuran on Valois soil (0.016 organic carbon fraction); and 2.38 cm3 g?1 for ethoprophos on Rhinebeck soil (0.031 organic carbon fraction). Two solutions to the convection-dispersion equation, one that incorporated equilibrium sorption and another (bicontinuum model) that included a non-equilibrium sorption term, allowed quantitative evaluation of transport processes. The bicontinuum model used in conjunction with experimental batch and mass balance techniques provided estimates of insecticide sorption and degradation parameters. 相似文献
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