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Brazil stands out internationally in the production and commercialization of wood products. Although the external and internal demand for these products is met by the Brazilian forestry sector, challenges related to the internal management of lignocellulosic waste are evident, as the country has structural difficulties in the sector of solid waste management. Therefore, the objective was to comparatively analyze the performance of the most abundant lignocellulosic materials in the Brazilian market, regarding energy recovery at the end of their life cycles. Pine wood treated with chromed copper arsenate (CCA), untreated pine wood, eucalypt wood treated with CCA, untreated eucalypt wood, uncoated medium density fiberboard panel (MDF), and MDF panel with melamine coating were sampled. The characterization included thermogravimetric analysis (TGA), scanning electron microscopy (SEM) with energy-dispersive x-ray spectroscopy (EDXA), and elementary analysis (EA). The presence of the CCA salts and the melamine coating reduced the energy potential of the biomass, altering the burning behavior and significantly increasing the amount of generated ashes. They also caused an increase in the concentrations of copper (Cu), chromium (Cr), arsenic (As), and cadmium (Cd) in the wood ashes as well as lead (Pb) and chromium in the panel ashes.
João Tomeleri; Luciano Varanda; Leonardo Pitombo; Fabio Yamaji; Franciane Pádua. Influence of Non-Lignocellulosic Elements on the Combustion of Treated Wood and Wooden Panel. Sustainability 2021, 13, 5161 .
AMA StyleJoão Tomeleri, Luciano Varanda, Leonardo Pitombo, Fabio Yamaji, Franciane Pádua. Influence of Non-Lignocellulosic Elements on the Combustion of Treated Wood and Wooden Panel. Sustainability. 2021; 13 (9):5161.
Chicago/Turabian StyleJoão Tomeleri; Luciano Varanda; Leonardo Pitombo; Fabio Yamaji; Franciane Pádua. 2021. "Influence of Non-Lignocellulosic Elements on the Combustion of Treated Wood and Wooden Panel." Sustainability 13, no. 9: 5161.
Iron is an essential mineral and one of the most abundant in soils, presenting itself in the environment as ferrous and ferric ions. As each oxidation state of iron has a different role in the environment, its speciation in environmental studies is important. The determination of ferrous iron received great attention from soil chemists because of its important role in agriculture, in redox processes, and as an electron acceptor in the catalysis of organic matter. Methodologies with the use of colorimetric reagents to determine ferrous iron are divergent and not very clear. In this study, we compared two colorimetric reagents (1,10-phenanthroline and ferrozine) to determine the total concentration of iron, ferrous and ferric ions in soil, using simple and low-cost methodologies. The determination of ferrous and total iron with 1,10-phenanthroline colorimetric reagent, following published instructions, did not correlate with ferrozine method, presenting an erroneous quantification. After neutralizing the extract of 1,10-phenanthroline with NaOH, both colorimetric methods allowed to quantify with precision and high yield the amount of ferrous and total iron extracted from the soil. The oxidation states of iron have a different contribution and importance to the environment. In this sense, the improvement of a widely used methodology is crucial for the better study of iron speciation in soil.
Gabriele Verônica De Mello Gabriel; Leonardo Machado Pitombo; Luana Maria Tavares Rosa; Acacio Aparecido Navarrete; Wander Gustavo Botero; Janaina Braga Do Carmo; Luciana Camargo De Oliveira. The environmental importance of iron speciation in soils: evaluation of classic methodologies. Environmental Monitoring and Assessment 2021, 193, 1 -9.
AMA StyleGabriele Verônica De Mello Gabriel, Leonardo Machado Pitombo, Luana Maria Tavares Rosa, Acacio Aparecido Navarrete, Wander Gustavo Botero, Janaina Braga Do Carmo, Luciana Camargo De Oliveira. The environmental importance of iron speciation in soils: evaluation of classic methodologies. Environmental Monitoring and Assessment. 2021; 193 (2):1-9.
Chicago/Turabian StyleGabriele Verônica De Mello Gabriel; Leonardo Machado Pitombo; Luana Maria Tavares Rosa; Acacio Aparecido Navarrete; Wander Gustavo Botero; Janaina Braga Do Carmo; Luciana Camargo De Oliveira. 2021. "The environmental importance of iron speciation in soils: evaluation of classic methodologies." Environmental Monitoring and Assessment 193, no. 2: 1-9.
Besides being toxic to enchytraeids, pesticides may also affect microbial communities, which are the main diet of enchytraeids. This study aimed to analyze the individual and combined effects of the insecticide Kraft® 36 EC (abamectin) and the fungicide Score® 250 EC (difenoconazole) to soil microbial communities and Enchytraeus crypticus populations. The abamectin and difenoconazole effects to the microbial community metabolism, as revealed by qCO2 increase in the first two periods of exposure, might indicate an acute effect of pesticides, which might result in lowered microbial biomass once microorganisms spend more energy in detoxification processes than in microbial growth. E. crypticus juvenile production was not affected at the different conditions tested. However, the importance of microorganisms on the enchytraeids diet was ratified. Besides, it is important to emphasize that only one recommended dose of the pesticides was tested in this study. Hence, other situations (e.g. pesticides over application or a slower process of pesticides degradation) may result in a different scenario of effects and should be further investigated.
André Gomes Da Rocha; Leonardo Machado Pitombo; Joana Dias Bresolin; Wilson Tadeu Lopes Da Silva; Evaldo Luiz Gaeta Espindola; Vanessa Bezerra De Menezes Oliveira. Single and combined toxicity of the pesticides abamectin and difenoconazole on soil microbial activity and Enchytraeus crypticus population. SN Applied Sciences 2020, 2, 1 -10.
AMA StyleAndré Gomes Da Rocha, Leonardo Machado Pitombo, Joana Dias Bresolin, Wilson Tadeu Lopes Da Silva, Evaldo Luiz Gaeta Espindola, Vanessa Bezerra De Menezes Oliveira. Single and combined toxicity of the pesticides abamectin and difenoconazole on soil microbial activity and Enchytraeus crypticus population. SN Applied Sciences. 2020; 2 (8):1-10.
Chicago/Turabian StyleAndré Gomes Da Rocha; Leonardo Machado Pitombo; Joana Dias Bresolin; Wilson Tadeu Lopes Da Silva; Evaldo Luiz Gaeta Espindola; Vanessa Bezerra De Menezes Oliveira. 2020. "Single and combined toxicity of the pesticides abamectin and difenoconazole on soil microbial activity and Enchytraeus crypticus population." SN Applied Sciences 2, no. 8: 1-10.
The generation of sewage sludge and the concern with their fate has greatly increased. The objective of this study was to assess the effects of using in natura (SS) or composted sewage sludge (SSC) in comparison with mineral fertilizer (MF) application and a control (CT) treatment on the nutritional status of Guanandi (Calophyllum brasiliense Cambess.) seedlings in a typical Red Oxisol in Brazil. The leaf-level nutritional responses of the Guanandi seedlings to these three different fertilizers and the control were evaluated at 90 and 180 days after planting. Nutritional data of leaf variables were compared between the treatments by means of one-way analysis of variance using the F test and a pair-wise comparison of means done by Tukey’s test. The seedlings that received SS or SSC showed deficiencies in Ca, Mg, and Mn, which were confirmed by a visual diagnosis of their leaf symptoms. However, at 180 days after planting there were significant differences (p < 0.05) for K that was greater for MF, SS and SSC than CT, Mg, with SSC larger than SS, and for S that was greater with SS and SSC uses relative to MF. The results highlight the potential for using SS and SSC, after adding KCl and lime, although the Guanandi was highly demanding of Ca, Mg, and Mn. However, they were able to nutritionally supply seedlings, although the short-term cannot be conclusive as regards the exclusive use of them in place of mineral fertilizers.
Carolina Braga Brandani; Amanda Santos Kühl; Vicenzo Enrico Ilario; Leonardo Machado Pitombo; Pedro José Ferreira-Filho; Elisabete Alves Pereira; Luciana Camargo Oliveira; Janaina Braga Do Carmo. Nutritional evaluation of Guanandi seedlings fertilized with sewage sludge. Bragantia 2019, 78, 253 -263.
AMA StyleCarolina Braga Brandani, Amanda Santos Kühl, Vicenzo Enrico Ilario, Leonardo Machado Pitombo, Pedro José Ferreira-Filho, Elisabete Alves Pereira, Luciana Camargo Oliveira, Janaina Braga Do Carmo. Nutritional evaluation of Guanandi seedlings fertilized with sewage sludge. Bragantia. 2019; 78 (2):253-263.
Chicago/Turabian StyleCarolina Braga Brandani; Amanda Santos Kühl; Vicenzo Enrico Ilario; Leonardo Machado Pitombo; Pedro José Ferreira-Filho; Elisabete Alves Pereira; Luciana Camargo Oliveira; Janaina Braga Do Carmo. 2019. "Nutritional evaluation of Guanandi seedlings fertilized with sewage sludge." Bragantia 78, no. 2: 253-263.
The use of organic amendments is important for the sustainability of organic farming, with implications for soil organic matter turnover, nutrient cycling and greenhouse gases (GHGs) emissions to the atmosphere. Here, we investigated how long-term citrus organic farming influenced carbon sequestration and GHG emissions under organic and conventional management. We assessed the effects of management systems on soil organic matter dynamics and GHG emissions, focusing on N2O direct emissions from fertilizers. Soil stable isotope C and N compositions (0–100 cm) were used as parameters to assess changes in soil organic matter dynamics, with native forest as the reference. After the conversion from forest to orange orchard, stocks of soil C increased approximately 40 Mg ha−1, whereas stocks were similar in the organic and conventional treatments. Enrichment of 13C through the entire soil profile showed that organic matter from fertilizer replaced the original soil C by at least 20%, considering that poultry was fed only with C4 plants. By contrast, organic farming increased soil N stocks and inorganic N. Nitrogen emission factors for inorganic and organic fertilizers were 1.47 and 3.14, respectively. Organic management increased soil GHG emissions, primarily N2O emissions. Carbon emissions either as CO2 or CH4 were greater at the mid-rows than those under the crop canopy. We conclude that organic management did not promote C sequestration after six years of management. Moreover, organic management increased N2O emissions, and the GHG balance was more negative for organic than that for conventional farming when the ratio between crop harvest and emissions was determined.
Andréa Sibila Bisca Escanhoela; Leonardo Machado Pitombo; Carolina Braga Brandani; Acacio Aparecido Navarrete; Camila Bolfarini Bento; Janaina Braga Do Carmo. Organic management increases soil nitrogen but not carbon content in a tropical citrus orchard with pronounced N2O emissions. Journal of Environmental Management 2019, 234, 326 -335.
AMA StyleAndréa Sibila Bisca Escanhoela, Leonardo Machado Pitombo, Carolina Braga Brandani, Acacio Aparecido Navarrete, Camila Bolfarini Bento, Janaina Braga Do Carmo. Organic management increases soil nitrogen but not carbon content in a tropical citrus orchard with pronounced N2O emissions. Journal of Environmental Management. 2019; 234 ():326-335.
Chicago/Turabian StyleAndréa Sibila Bisca Escanhoela; Leonardo Machado Pitombo; Carolina Braga Brandani; Acacio Aparecido Navarrete; Camila Bolfarini Bento; Janaina Braga Do Carmo. 2019. "Organic management increases soil nitrogen but not carbon content in a tropical citrus orchard with pronounced N2O emissions." Journal of Environmental Management 234, no. : 326-335.
Aquatic contamination by potentially toxic metals is a problem that has been aggravated, especially due to the quantity and the diversity of sources. Locating these sources is not always an easy task, especially because of the wide variety of possibilities. In this context, the application of geostatistical methods may represent an excellent tool to find out sources of metal contaminants in aquatic systems. Thus, the objective of this work was to elaborate an approach to identify sources of potentially toxic metals (Zn, Ba, Pb, Cr, Mn and Fe), by relating their spatial–temporal variations with the local land use patterns, along a longitudinal profile of the Pirapora River, located in the State of Sao Paulo, Brazil. For this purpose, water samples were collected at different points, taking into consideration each specific land use pattern and quantifying the metals contents by microwave plasma atomic emission spectrometry. In this work, thirteen land use patterns have been identified: mining, forestry, abandoned pasture, water, urban area, human occupation, floodplain, bare soil, temporary crop, roads, forest, streets and pasture. The results revealed temporal variations for the metals Ba, Cr, Fe, and Pb and spatial for Zn and Mn, making possible to correlate the presence of these two latter metals with mining and forestry, the most proeminent activities in the region. Overall, this work proposes a model which brings together geoprocessing and analytical methods, in order to correlate spatial–temporal variations of potentially toxic metals with specific land use patterns of a determined region, aiming the environmental monitoring.
Elisabete Leide Marzola; Luana Rosa; Rogério Hartung Toppa; Marcos Roberto Martines; Leonardo Machado Pitombo; Alexandre Donizeti Martins Cavagis; Janaina Braga Do Carmo; Wander Gustavo Botero; Luciana Camargo De Oliveira. Spatial modeling applied to environmental monitoring: identifying sources of potentially toxic metals in aquatic system. Environmental Geochemistry and Health 2018, 41, 1339 -1350.
AMA StyleElisabete Leide Marzola, Luana Rosa, Rogério Hartung Toppa, Marcos Roberto Martines, Leonardo Machado Pitombo, Alexandre Donizeti Martins Cavagis, Janaina Braga Do Carmo, Wander Gustavo Botero, Luciana Camargo De Oliveira. Spatial modeling applied to environmental monitoring: identifying sources of potentially toxic metals in aquatic system. Environmental Geochemistry and Health. 2018; 41 (3):1339-1350.
Chicago/Turabian StyleElisabete Leide Marzola; Luana Rosa; Rogério Hartung Toppa; Marcos Roberto Martines; Leonardo Machado Pitombo; Alexandre Donizeti Martins Cavagis; Janaina Braga Do Carmo; Wander Gustavo Botero; Luciana Camargo De Oliveira. 2018. "Spatial modeling applied to environmental monitoring: identifying sources of potentially toxic metals in aquatic system." Environmental Geochemistry and Health 41, no. 3: 1339-1350.
Recycling residues is a sustainable alternative to improve soil structure and increase the stock of nutrients. However, information about the magnitude and duration of disturbances caused by crop and industrial wastes on soil microbial community structure and function is still scarce. The objective of this study was to investigate how added residues from industry and crops together with nitrogen (N) fertiliser affect the microbial community structure and function, and nitrous oxide (NO) emissions. The experimental sugarcane field had the following treatments: (I) control with nitrogen, phosphorus, and potassium (NPK), (II) sugarcane straw with NPK, (III) vinasse (by-product of ethanol industry) with NP, and (IV) vinasse plus sugarcane straw with NP. Soil samples were collected on days 1, 3, 6, 11, 24 and 46 of the experiment for DNA extraction and metagenome sequencing. NO emissions were also measured. Treatments with straw and vinasse residues induced changes in soil microbial composition and potential functions. The change in the microbial community was highest in the treatments with straw addition with functions related to decomposition of different ranges of C-compounds overrepresented while in vinasse treatment, the functions related to spore-producing microorganisms were overrepresented. Furthermore, all additional residues increased microorganisms related to the nitrogen metabolism and vinasse with straw had a synergetic effect on the highest NO emissions. The results highlight the importance of residues and fertiliser management in sustainable agriculture.
Afnan Khalil Ahmad Suleiman; Késia Silva Lourenço; Leonardo Machado Pitombo; Lucas William Mendes; Luiz Fernando Wurdig Roesch; Agata Pijl; Janaína Braga Carmo; Heitor Cantarella; Eiko Eurya Kuramae. Recycling organic residues in agriculture impacts soil-borne microbial community structure, function and N2O emissions. Science of The Total Environment 2018, 631-632, 1089 -1099.
AMA StyleAfnan Khalil Ahmad Suleiman, Késia Silva Lourenço, Leonardo Machado Pitombo, Lucas William Mendes, Luiz Fernando Wurdig Roesch, Agata Pijl, Janaína Braga Carmo, Heitor Cantarella, Eiko Eurya Kuramae. Recycling organic residues in agriculture impacts soil-borne microbial community structure, function and N2O emissions. Science of The Total Environment. 2018; 631-632 ():1089-1099.
Chicago/Turabian StyleAfnan Khalil Ahmad Suleiman; Késia Silva Lourenço; Leonardo Machado Pitombo; Lucas William Mendes; Luiz Fernando Wurdig Roesch; Agata Pijl; Janaína Braga Carmo; Heitor Cantarella; Eiko Eurya Kuramae. 2018. "Recycling organic residues in agriculture impacts soil-borne microbial community structure, function and N2O emissions." Science of The Total Environment 631-632, no. : 1089-1099.
This methodology is proposed to measure the fluxes of trace gases among microcosms and the atmosphere. As microcosm respiration we include both aerobic and anaerobic respiration, which may results in CO2, CH4, NO, N2O, N2, H2S and H2 fluxes. Its applicability includes the assessment of products biodegradability and toxicity, the effect of treatments and products on greenhouse gases fluxes, and the mineralization of organic fertilizers. A step by step procedure; the complementary parameters and good practices that might be taken into account to perform a microcosm experiment; and the tools nowadays available that could be useful in this respirometric methodology are presented. We included a spreadsheet with calculus examples. Samples were taken at 1; 30; 60 and 90 min after closing the microcosms to determine the gases fluxes. The dilution effect was negligible, as we present. Besides CO2, we have successfully quantified the fluxes of CH4 and N2O from the microcosms in a broad range of concentrations. This method is useful in technical and scientific studies, for instances to test new products and improve the understanding of microbial processes, respectively. •Simple materials are required to set up the microcosm.•Examples of (pre) treatments are given regarding water availability, fertilizer doses, pH adjustment and nutrients amendments.•The method was suitable to directly measure multiple trace gases fluxes, either produced or consumed during microcosm respiration.
Leonardo M. Pitombo; Juliana C. Ramos; Helio D. Quevedo; Karina P. Do Carmo; Jane M.F. Paiva; Elisabete A. Pereira; Janaina B. Do Carmo. Methodology for soil respirometric assays: Step by step and guidelines to measure fluxes of trace gases using microcosms. MethodsX 2018, 5, 656 -668.
AMA StyleLeonardo M. Pitombo, Juliana C. Ramos, Helio D. Quevedo, Karina P. Do Carmo, Jane M.F. Paiva, Elisabete A. Pereira, Janaina B. Do Carmo. Methodology for soil respirometric assays: Step by step and guidelines to measure fluxes of trace gases using microcosms. MethodsX. 2018; 5 ():656-668.
Chicago/Turabian StyleLeonardo M. Pitombo; Juliana C. Ramos; Helio D. Quevedo; Karina P. Do Carmo; Jane M.F. Paiva; Elisabete A. Pereira; Janaina B. Do Carmo. 2018. "Methodology for soil respirometric assays: Step by step and guidelines to measure fluxes of trace gases using microcosms." MethodsX 5, no. : 656-668.
Acacio Aparecido Navarrete; Leonardo Machado Pitombo; Carolina Braga Brandani; Camila Bolfarini Bento; Andrea Sibila B. Escanhoela; Juliana Cristina Ramos; Leticia Pedroso Ramos; Hélio Danilo Quevedo; Caroline Sayuri Nishisaka; Janaina Braga Do Carmo. Multi-Analytical Interactions in Support of Sugarcane Agroecosystems Sustainability in Tropical Soils. Sugarcane - Technology and Research 2018, 1 .
AMA StyleAcacio Aparecido Navarrete, Leonardo Machado Pitombo, Carolina Braga Brandani, Camila Bolfarini Bento, Andrea Sibila B. Escanhoela, Juliana Cristina Ramos, Leticia Pedroso Ramos, Hélio Danilo Quevedo, Caroline Sayuri Nishisaka, Janaina Braga Do Carmo. Multi-Analytical Interactions in Support of Sugarcane Agroecosystems Sustainability in Tropical Soils. Sugarcane - Technology and Research. 2018; ():1.
Chicago/Turabian StyleAcacio Aparecido Navarrete; Leonardo Machado Pitombo; Carolina Braga Brandani; Camila Bolfarini Bento; Andrea Sibila B. Escanhoela; Juliana Cristina Ramos; Leticia Pedroso Ramos; Hélio Danilo Quevedo; Caroline Sayuri Nishisaka; Janaina Braga Do Carmo. 2018. "Multi-Analytical Interactions in Support of Sugarcane Agroecosystems Sustainability in Tropical Soils." Sugarcane - Technology and Research , no. : 1.
Sugarcane is a widespread bioenergy crop in tropical regions, and the growing global demand for renewable energy in recent years has led to a dramatic expansion and intensification of sugarcane agriculture in Brazil. Currently, extensive areas of low-intensity pasture are being converted to sugarcane, while management in the remaining pasture is becoming more intensive, i.e., includes tilling and fertilizer use. In this study, we assessed how such changes in land use and management practices alter emissions of greenhouse gases (GHG) such as CO, NO and CH by measuring in situ fluxes for one year after conversion from low-intensity pasture to conventional sugarcane agriculture and management-intensive pasture. Results show that CO and NO fluxes increased significantly in pasture and sugarcane with tillage, fertilizer use, or both combined. Emissions were highly variable for all GHGs, yet, cumulatively, it was clear that annual emissions in CO-equivalent (CO-eq) were higher in management-intense pasture and sugarcane than in unmanaged pasture. Surprisingly, tilled pasture with fertilizer (management-intensive pasture) resulted in higher CO-eq emissions than conventional sugarcane. We concluded that intensification of pasture management and the conversion of pasture to sugarcane can increase the emission factor (EF) estimated for sugarcane produced in Brazil. The role of management practices and environmental conditions and the potential for reducing emissions are discussed.
Camila Bolfarini Bento; Solange Filoso; Leonardo Pitombo; Heitor Cantarella; Raffaella Rossetto; Luiz Martinelli; Janaina Braga Do Carmo. Impacts of sugarcane agriculture expansion over low-intensity cattle ranch pasture in Brazil on greenhouse gases. Journal of Environmental Management 2018, 206, 980 -988.
AMA StyleCamila Bolfarini Bento, Solange Filoso, Leonardo Pitombo, Heitor Cantarella, Raffaella Rossetto, Luiz Martinelli, Janaina Braga Do Carmo. Impacts of sugarcane agriculture expansion over low-intensity cattle ranch pasture in Brazil on greenhouse gases. Journal of Environmental Management. 2018; 206 ():980-988.
Chicago/Turabian StyleCamila Bolfarini Bento; Solange Filoso; Leonardo Pitombo; Heitor Cantarella; Raffaella Rossetto; Luiz Martinelli; Janaina Braga Do Carmo. 2018. "Impacts of sugarcane agriculture expansion over low-intensity cattle ranch pasture in Brazil on greenhouse gases." Journal of Environmental Management 206, no. : 980-988.
Lucas Pecci Canisares; Janaína Braga Do Carmo; Leonardo Machado Pitombo; Eduardo Cleto Pires. Digested bioenergy byproduct with low concentration of nutrients increased greenhouse gas emissions from soil. Geoderma 2017, 307, 81 -90.
AMA StyleLucas Pecci Canisares, Janaína Braga Do Carmo, Leonardo Machado Pitombo, Eduardo Cleto Pires. Digested bioenergy byproduct with low concentration of nutrients increased greenhouse gas emissions from soil. Geoderma. 2017; 307 ():81-90.
Chicago/Turabian StyleLucas Pecci Canisares; Janaína Braga Do Carmo; Leonardo Machado Pitombo; Eduardo Cleto Pires. 2017. "Digested bioenergy byproduct with low concentration of nutrients increased greenhouse gas emissions from soil." Geoderma 307, no. : 81-90.
Post-harvest biomass can be used as feedstock for energy production and alter N2O emissions from the soil, which is among the main issues determining bioethanol sustainability. To assess the effects of sugarcane straw return on gas emissions, we established a field experiment in which 0, 50, 75 or 100% (0, 5.65, 8.47 and 11.30 Mg/ha dry biomass, respectively) of the crop residues (straw) was left in the field during the first two ratoon crops. As fertilizer is applied in bands to sugarcane, we also investigated the contribution of different positions to the N2O emissions within the field. There was an interactive effect between straw and inorganic fertilizer, leading to a nonlinear effect of crop residues on the fertilizer emission factor (EF). However, straw consistently reduced N2O emissions from the field, acting mainly in the unfertilized areas in the field (P < 0.05). We observed that considering the typical EF used in the literature, the N2O-N emissions attributed to fertilizer ranged from 0.19 to 0.79 kg/ha, while the total emissions ranged from 3.3 to 5.2 kg/ha, from the highest amount of straw to the lowest. We conclude that overall, the fertilizer EF is not as relevant as the total emissions, based on this and other studies. Consequently, management practices might be more effective in improving the GHG balance than changing inorganic fertilizer use. We conclude that keeping up to 11 Mg/ha of straw with a large C:N ratio (>100:1) on site might increase sugarcane production sustainability by reducing the greenhouse gas emissions from the field.
L. M. Pitombo; H. Cantarella; A. P. C. Packer; N. P. Ramos; J. B. Do Carmo. Straw preservation reduced total N2O emissions from a sugarcane field. Soil Use and Management 2017, 33, 583 -594.
AMA StyleL. M. Pitombo, H. Cantarella, A. P. C. Packer, N. P. Ramos, J. B. Do Carmo. Straw preservation reduced total N2O emissions from a sugarcane field. Soil Use and Management. 2017; 33 (4):583-594.
Chicago/Turabian StyleL. M. Pitombo; H. Cantarella; A. P. C. Packer; N. P. Ramos; J. B. Do Carmo. 2017. "Straw preservation reduced total N2O emissions from a sugarcane field." Soil Use and Management 33, no. 4: 583-594.
The increase in demand for food due to the rapid population growth in recent years has raised the use of fertilizers, particularly phosphate salts. This fact has contributed to the excess amount of phosphorus species in aquatic systems. This is due to the leaching of these species present in the fertilizers applied to the soil to aquatic environments and may lead to eutrophication in these environments. Substances capable of interacting with the phosphate in the aquatic environment are promising for the reduction on the environmental impact. The humin, an insoluble fraction of humic material, has potential for phosphate retention, behaving like a chelating resin. Thus, the purpose of this research was to study the interaction between humin and phosphate. The equilibrium time between humin and phosphate was 15 min, where hydrogenionic potential (pH) 4.0 was the most effective in the interaction process. In this pH, the humin retained 33% of phosphate added. The complexing capacity of the humin-phosphate system was 11.53 mg g−1. The adsorption studies indicated that the system follows a kinetic pseudo-second-order model. The Freundlich model was the most suitable to describe the phosphate adsorption process in humin. To evaluate the humin application in real systems, humin was added to the domestic wastewater. Sixteen percent of the total phosphate was adsorbed by the humin. Based on these results, humin has the potential to phosphate retention in domestic wastewater and could be used as a chelating resin minimizing environmental impact.
Luciana Camargo de Oliveira; Wander Gustavo Botero; Josue Santos; Ricardo Moutinho Da Silva; Leonardo Machado Pitombo; Janaina Braga Do Carmo; Luana Rosa. Interaction Study Between Humin and Phosphate: Possible Environmental Remediation for Domestic Wastewater. Water, Air, & Soil Pollution 2017, 228, 1 .
AMA StyleLuciana Camargo de Oliveira, Wander Gustavo Botero, Josue Santos, Ricardo Moutinho Da Silva, Leonardo Machado Pitombo, Janaina Braga Do Carmo, Luana Rosa. Interaction Study Between Humin and Phosphate: Possible Environmental Remediation for Domestic Wastewater. Water, Air, & Soil Pollution. 2017; 228 (7):1.
Chicago/Turabian StyleLuciana Camargo de Oliveira; Wander Gustavo Botero; Josue Santos; Ricardo Moutinho Da Silva; Leonardo Machado Pitombo; Janaina Braga Do Carmo; Luana Rosa. 2017. "Interaction Study Between Humin and Phosphate: Possible Environmental Remediation for Domestic Wastewater." Water, Air, & Soil Pollution 228, no. 7: 1.
Crop residues returned to the soil are important for the preservation of soil quality, health, and biodiversity, and they increase agriculture sustainability by recycling nutrients. Sugarcane is a bioenergy crop that produces huge amounts of straw (also known as trash) every year. In addition to straw, the ethanol industry also generates large volumes of vinasse, a liquid residue of ethanol production, which is recycled in sugarcane fields as fertilizer. However, both straw and vinasse have an impact on N2O fluxes from the soil. Nitrous oxide is a greenhouse gas that is a primary concern in biofuel sustainability. Because bacteria and archaea are the main drivers of N redox processes in soil, in this study we propose the identification of taxa related with N2O fluxes by combining functional responses (N2O release) and the abundance of these microorganisms in soil. Using a large-scale in situ experiment with ten treatments, an intensive gas monitoring approach, high-throughput sequencing of soil microbial 16S rRNA gene and powerful statistical methods, we identified microbes related to N2O fluxes in soil with sugarcane crops. In addition to the classical denitrifiers, we identified taxa within the phylum Firmicutes and mostly uncharacterized taxa recently described as important drivers of N2O consumption. Treatments with straw and vinasse also allowed the identification of taxa with potential biotechnological properties that might improve the sustainability of bioethanol by increasing C yields and improving N efficiency in sugarcane fields.
Leonardo Machado Pitombo; Janaína B. Carmo; Mattias De Hollander; Raffaella Rossetto; Maryeimy V. López; Heitor Cantarella; Eiko E. Kuramae. Exploring soil microbial 16S rRNA sequence data to increase carbon yield and nitrogen efficiency of a bioenergy crop. GCB Bioenergy 2015, 8, 867 -879.
AMA StyleLeonardo Machado Pitombo, Janaína B. Carmo, Mattias De Hollander, Raffaella Rossetto, Maryeimy V. López, Heitor Cantarella, Eiko E. Kuramae. Exploring soil microbial 16S rRNA sequence data to increase carbon yield and nitrogen efficiency of a bioenergy crop. GCB Bioenergy. 2015; 8 (5):867-879.
Chicago/Turabian StyleLeonardo Machado Pitombo; Janaína B. Carmo; Mattias De Hollander; Raffaella Rossetto; Maryeimy V. López; Heitor Cantarella; Eiko E. Kuramae. 2015. "Exploring soil microbial 16S rRNA sequence data to increase carbon yield and nitrogen efficiency of a bioenergy crop." GCB Bioenergy 8, no. 5: 867-879.
The large volume of sewage sludge (SS) generated with high carbon (C) and nutrient content suggests that its agricultural use may represent an important alternative to soil carbon sequestration and provides a potential substitute for synthetic fertilizers. However, emissions of CH4 and N2O could neutralize benefits with increases in soil C or saving fertilizer production because these gases have a Global Warming Potential (GWP) 25 and 298 times greater than CO2, respectively. Thus, this study aimed to determine C and N content as well as greenhouse gases (GHG) fluxes from soils historically amended with SS. Sewage sludge was applied between 2001 and 2007, and maize (Zea mays L.) was sowed in every year between 2001 and 2009. We evaluated three treatments: Control (mineral fertilizer), 1SS (recommended rate) and 2SS (double rate). Carbon stocks (0-40 cm) were 58.8, 72.5 and 83.1 Mg ha–1in the Control, 1SS and 2SS, respectively, whereas N stocks after two years without SS treatment were 4.8, 5.8, and 6.8 Mg ha–1, respectively. Soil CO2 flux was highly responsive to soil temperature in SS treatments, and soil water content greatly impacted gas flux in the Control. Soil N2O flux increased under the residual effects of SS, but in 1SS, the flux was similar to that found in moist tropical forests. Soil remained as a CH4sink. Large stores of carbon following historical SS application indicate that its use could be used as a method for carbon sequestration, even under tropical conditions.
Leonardo Machado Pitombo; Janaina Braga Do Carmo; Isabela Clerici De Maria; Cristiano Andrade. Carbon sequestration and greenhouse gases emissions in soil under sewage sludge residual effects. Scientia Agricola 2015, 72, 147 -156.
AMA StyleLeonardo Machado Pitombo, Janaina Braga Do Carmo, Isabela Clerici De Maria, Cristiano Andrade. Carbon sequestration and greenhouse gases emissions in soil under sewage sludge residual effects. Scientia Agricola. 2015; 72 (2):147-156.
Chicago/Turabian StyleLeonardo Machado Pitombo; Janaina Braga Do Carmo; Isabela Clerici De Maria; Cristiano Andrade. 2015. "Carbon sequestration and greenhouse gases emissions in soil under sewage sludge residual effects." Scientia Agricola 72, no. 2: 147-156.
Este trabalho envolveu a obtenção de filmes poliméricos a partir de amido de milho e incorporação de lignina na forma de lignossulfonato. A motivação deste trabalho está relacionada à utilização do amido na obtenção de filmes devido ao seu potencial de biodegradação, além do aproveitamento de resíduos de lignossulfonatos provenientes da indústria de celulose e papel. Para a obtenção dos filmes foram utilizados lignossulfonatos em pó e foram realizadas diversas moldagens com variação do tipo e da proporção (1% a 4%) de lignossulfonato utilizado. Algumas análises foram realizadas nos filmes poliméricos para comparar propriedades térmicas por DSC (Calorimetria Exploratória Diferencial), e propriedades de tração, em equipamento de DMTA (Análise Térmica Dinâmico-Mecânica). Neste estudo são destacadas as análises da biodegradação e da emissão dos gases liberados utilizando a técnica de Cromatografia Gasosa. De acordo com os resultados de DMTA, a maioria dos filmes poliméricos contendo lignossulfonatos apresentou resistência à tração inferior quando comparados aos filmes poliméricos sem lignossulfonatos (1,024 MPa). Porém, os filmes contendo lignossulfonato modificado com sódio (Vixil S) apresentaram maiores valores de resistência à tração quando comparado aos outros filmes contendo os lignossulfonatos utilizados (Vixil I e Vixil Tan). Nas análises térmicas foram notadas semelhanças entre os dois tipos principais de filmes poliméricos (amido; e amido com lignossulfonato), com alguns deslocamentos das temperaturas dos principais picos máximos dos filmes contendo lignossulfonato (4%, Vixil S). Na análise de biodegradabilidade foi verificado que os materiais são biodegradáveis e houve uma emissão maior de CO2 e N2O das amostras dos filmes contendo 4% lignossulfonato do tipo Vixil S, em comparação com as amostras sem lignossulfonato.
Marina Rodrigues Campagner; Virgínia Aparecida Da Silva Moris; Leonardo Machado Pitombo; Janaina Braga Do Carmo; Jane Maria Faulstich De Paiva; Iiii. Filmes poliméricos baseados em amido e lignossulfonatos: preparação, propriedades e avaliação da biodegradação. Polímeros 2014, 24, 740 -751.
AMA StyleMarina Rodrigues Campagner, Virgínia Aparecida Da Silva Moris, Leonardo Machado Pitombo, Janaina Braga Do Carmo, Jane Maria Faulstich De Paiva, Iiii. Filmes poliméricos baseados em amido e lignossulfonatos: preparação, propriedades e avaliação da biodegradação. Polímeros. 2014; 24 (6):740-751.
Chicago/Turabian StyleMarina Rodrigues Campagner; Virgínia Aparecida Da Silva Moris; Leonardo Machado Pitombo; Janaina Braga Do Carmo; Jane Maria Faulstich De Paiva; Iiii. 2014. "Filmes poliméricos baseados em amido e lignossulfonatos: preparação, propriedades e avaliação da biodegradação." Polímeros 24, no. 6: 740-751.
This study aimed to quantify the carbon dioxide emissions from an Oxisol under degraded pasture located in Sorocaba, São Paulo State, Brazil. The treatments were: sewage sludge (LE), sewage sludge compost (CLE), mineral fertilizer (AM) and no fertilization (T0). The experiment was conducted in a completely randomized block design with analysis of the effect of the four treatments (CLE, LE, and AM T0) with four replications. The application of sewage sludge, sewage sludge compost, mineral fertilizer and no fertilizer was statistically significant for the variables of height increase and stem height of Guanandi seedlings (Calophyllum brasiliense Cambessèdes - Calophyllaceae). Treatments showed significant differences in terms of CO2 emissions from soil. The CLE exhibited the highest CO2 fluxes, reaching a peak of 9.33±0.96 g C m- 2 day- 1 (p
Janaina Braga Carmo; Danilo Ignácio De Urzedo; Pedro José Ferreira Filho; Elisabete Alves Pereira; Leonardo Machado Pitombo. CO2 emission from soil after reforestation and application of sewage sludge. Bragantia 2014, 73, 312 -318.
AMA StyleJanaina Braga Carmo, Danilo Ignácio De Urzedo, Pedro José Ferreira Filho, Elisabete Alves Pereira, Leonardo Machado Pitombo. CO2 emission from soil after reforestation and application of sewage sludge. Bragantia. 2014; 73 (3):312-318.
Chicago/Turabian StyleJanaina Braga Carmo; Danilo Ignácio De Urzedo; Pedro José Ferreira Filho; Elisabete Alves Pereira; Leonardo Machado Pitombo. 2014. "CO2 emission from soil after reforestation and application of sewage sludge." Bragantia 73, no. 3: 312-318.
Danilo Ignacio de Urzedo; Mariana Pires Franco; Leonardo Machado Pitombo; Janaina Braga Do Carmo. Effects of organic and inorganic fertilizers on greenhouse gas (GHG) emissions in tropical forestry. Forest Ecology and Management 2013, 310, 37 -44.
AMA StyleDanilo Ignacio de Urzedo, Mariana Pires Franco, Leonardo Machado Pitombo, Janaina Braga Do Carmo. Effects of organic and inorganic fertilizers on greenhouse gas (GHG) emissions in tropical forestry. Forest Ecology and Management. 2013; 310 ():37-44.
Chicago/Turabian StyleDanilo Ignacio de Urzedo; Mariana Pires Franco; Leonardo Machado Pitombo; Janaina Braga Do Carmo. 2013. "Effects of organic and inorganic fertilizers on greenhouse gas (GHG) emissions in tropical forestry." Forest Ecology and Management 310, no. : 37-44.
Plant survival under conditions of low oxygen availability is an important aspect of the phytoremediation of oily compounds, as one of the problems associated with environmental contamination by such compounds is anaerobic stress. Since Inga spp. presents adaptation mechanisms to conditions of partial and total submersion, it would be useful in the phytoremediation of petroleum wastes. The aim of this work was to verify the efficiency of a phytoremediation system using1Inga uruguensis Hook. and Arn. to degrade organic compounds such as semisolid petroleum waste (SSPW) and used cooking oil (UCO). A greenhouse study was conducted with plants grown in pots containing 3.1 kg substrate (soil + organic waste) that contained 10.15% SSPW or 5.56% UCO. Plants were grown for 84 days, and the system was evaluated by measuring changes in the oil and grease content (OGC), plant development, and abundance of microorganisms in substrate. Treatment of the SSPW with Inga sp. yielded a 40.7% reduction in OGC, whereas there was no significant change in the OGC in unplanted systems. Conversely, there was no significant plant effect on the OGC in the UCO-treated systems. Furthermore, we found evidence that the plant effect is associated with microbial community changes. Considering the high dose of SSPW and the high rate of degradation within an experiment of short duration, it was concluded that Inga uruguensis Hook. and Arn. holds potential for the phytoremediation of recalcitrant oily residues in soil.
Leonardo M. Pitombo; Cassiana M. Reganhan-Coneglian. Potential ofInga sp.(Inga uruguensisHook. and Arn.) in the Phytoremediation of Oily Compounds. Soil and Sediment Contamination: An International Journal 2013, 22, 829 -838.
AMA StyleLeonardo M. Pitombo, Cassiana M. Reganhan-Coneglian. Potential ofInga sp.(Inga uruguensisHook. and Arn.) in the Phytoremediation of Oily Compounds. Soil and Sediment Contamination: An International Journal. 2013; 22 (7):829-838.
Chicago/Turabian StyleLeonardo M. Pitombo; Cassiana M. Reganhan-Coneglian. 2013. "Potential ofInga sp.(Inga uruguensisHook. and Arn.) in the Phytoremediation of Oily Compounds." Soil and Sediment Contamination: An International Journal 22, no. 7: 829-838.
Bioethanol from sugarcane is becoming an increasingly important alternative energy source worldwide as it is considered to be both economically and environmentally sustainable. Besides being produced from a tropical perennial grass with high photosynthetic efficiency, sugarcane ethanol is commonly associated with low N fertilizer use because sugarcane from Brazil, the world's largest sugarcane producer, has a low N demand. In recent years, several models have predicted that the use of sugarcane ethanol in replacement to fossil fuel could lead to high greenhouse gas (GHG) emission savings. However, empirical data that can be used to validate model predictions and estimates from indirect methodologies are scarce, especially with regard to emissions associated with different fertilization methods and agricultural management practices commonly used in sugarcane agriculture in Brazil. In this study, we provide in situ data on emissions of three GHG (CO2, N2O, and CH4) from sugarcane soils in Brazil and assess how they vary with fertilization methods and management practices. We measured emissions during the two main phases of the sugarcane crop cycle (plant and ratoon cane), which include different fertilization methods and field conditions. Our results show that N2O and CO2 emissions in plant cane varied significantly depending on the fertilization method and that waste products from ethanol production used as organic fertilizers with mineral fertilizer, as it is the common practice in Brazil, increase emission rates significantly. Cumulatively, the highest emissions were observed for ratoon cane treated with vinasse (liquid waste from ethanol production) especially as the amount of crop trash on the soil surface increased. Emissions of CO2 and N2O were 6.9 kg ha−1 yr−1 and 7.5 kg ha−1 yr−1, respectively, totaling about 3000 kg in CO2 equivalent ha−1 yr−1.
Janaina Braga Do Carmo; Solange Filoso; Luciana C. Zotelli; Eráclito Sousa Neto; Leonardo Pitombo; Paulo Duarte-Neto; Vitor P. Vargas; Cristiano Andrade; Glauber J. C. Gava; Raffaella Rossetto; Heitor Cantarella; André E. Neto; Luiz Martinelli. Infield greenhouse gas emissions from sugarcane soils in Brazil: effects from synthetic and organic fertilizer application and crop trash accumulation. GCB Bioenergy 2012, 5, 267 -280.
AMA StyleJanaina Braga Do Carmo, Solange Filoso, Luciana C. Zotelli, Eráclito Sousa Neto, Leonardo Pitombo, Paulo Duarte-Neto, Vitor P. Vargas, Cristiano Andrade, Glauber J. C. Gava, Raffaella Rossetto, Heitor Cantarella, André E. Neto, Luiz Martinelli. Infield greenhouse gas emissions from sugarcane soils in Brazil: effects from synthetic and organic fertilizer application and crop trash accumulation. GCB Bioenergy. 2012; 5 (3):267-280.
Chicago/Turabian StyleJanaina Braga Do Carmo; Solange Filoso; Luciana C. Zotelli; Eráclito Sousa Neto; Leonardo Pitombo; Paulo Duarte-Neto; Vitor P. Vargas; Cristiano Andrade; Glauber J. C. Gava; Raffaella Rossetto; Heitor Cantarella; André E. Neto; Luiz Martinelli. 2012. "Infield greenhouse gas emissions from sugarcane soils in Brazil: effects from synthetic and organic fertilizer application and crop trash accumulation." GCB Bioenergy 5, no. 3: 267-280.