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Applications of laser-induced breakdown spectroscopy for soil characterization, part II: Review of elemental analysis and soil classification. Repositório Alice
VILLAS BOAS, P. R.; FRANCO, M. A. M.; MARTIN NETO, L.; GOLLANY, H. T.; MILORI, D. M. B. P..
bitstream/item/208312/1/P-Applications-of-Laser-Induced-Breakdown-Spectroscopy-for-Soil-Characterization-....pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Plant nutrients; Soil carbon; Soil contamination; SOM; Spatial elemental mapping; Toxic elements.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118323
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Arsenic toxicity in Acacia mangium WILLD. and Mimosa caesalpiniaefolia BENTH. Seedlings. Repositório Alice
CIPRIANI, H. N.; DIAS, L. E.; COSTA, M. D.; CAMPOS, N. V.; AZEVEDO, A. A.; GOMES, R. J.; FIALHO, I. F.; AMEZQUITA, S. P. M..
Acacia mangium and Mimosa caesalpiniaefolia are fast-growing woody fabaceous species that might be suitable for phytoremediation of arsenic (As)- contaminated sites. To date, few studies on their tolerance to As toxicity have been published. Therefore, this study assessed As toxicity symptoms in A. mangium and M. caesalpiniaefolia seedlings under As stress in a greenhouse. Seedlings of Acacia mangium and M. caesalpiniaefolia were grown for 120 d in an Oxisol-sand mixture with 0, 50, 100, 200, and 400 mg kg-1 As, in four replications in four randomized blocks. The plants were assessed for visible toxicity symptoms, dry matter production, shoot/root ratio, root anatomy and As uptake. Analyses of variance and regression showed that the growth of A. mangium...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Arsenate; Heavy metals; Phytoremediation; Root anatomy; Soil contamination; Contaminação do solo; Metais pesados; Anatomia radicular; Fitorremediação.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/974289
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Arsenic toxicity in Acacia mangium willd. and mimosa Caesalpiniaefolia benth. seedlings Rev. Bras. Ciênc. Solo
Cipriani,Henrique Nery; Dias,Luiz Eduardo; Costa,Maurício Dutra; Campos,Naiara Viana; Azevedo,Aristéa Alves; Gomes,Roberto Junio; Fialho,Izabela Ferreira; Amezquita,Sandra Patrícia Montealegre.
Acacia mangium and Mimosa caesalpiniaefolia are fast-growing woody fabaceous species that might be suitable for phytoremediation of arsenic (As)-contaminated sites. To date, few studies on their tolerance to As toxicity have been published. Therefore, this study assessed As toxicity symptoms in A. mangium and M. caesalpiniaefolia seedlings under As stress in a greenhouse. Seedlings of Acacia mangium and M. caesalpiniaefolia were grown for 120 d in an Oxisol-sand mixture with 0, 50, 100, 200, and 400 mg kg-1 As, in four replications in four randomized blocks. The plants were assessed for visible toxicity symptoms, dry matter production, shoot/root ratio, root anatomy and As uptake. Analyses of variance and regression showed that the growth of A. mangium and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arsenate; Heavy metals; Phytoremediation; Root anatomy; Soil contamination.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000500031
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Assessment of Trace Element Contents in Soils and Water from Cerrado Wetlands, Triângulo Mineiro Region Rev. Bras. Ciênc. Solo
Ribeiro,Bruno Teixeira; Nascimento,Diogo Costa; Curi,Nilton; Guilherme,Luiz Roberto Guimarães; Costa,Enio Tarso de Souza; Lopes,Guilherme; Carneiro,João Paulo.
ABSTRACT In the Brazilian Cerrado biome, there are wetlands locally known as “Veredas”, which are swampy plains between hills and rivers. Since the 1970’s, the Cerrado biome has been gradually converted to livestock, crop, or forestry production. Until now, very few studies were conducted to evaluate the baseline contents of trace elements in Cerrado wetland soils. Due to their position in the landscape (bottom lands), the wetlands are potentially susceptible to contamination by runoff and/or leaching from surrounding areas at higher altitudes. This work evaluated the As, Cd, Pb, Ni, Zn, Cu, Mn, and Fe contents in soils from six wetlands (undisturbed and disturbed) in the Minas Gerais Triangle region, Brazil. In each wetland, we collected topsoil samples...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Waterlogged soils; Soil contamination; Tropical soils; Heavy metals.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100515
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Biodiversity of Collembola in urban soils and their use as bioindicators for pollution. Repositório Alice
FIERA, C..
Abstract ? The objective of this work was to evaluate the effects of pollutants on the abundance and diversity of Collembola in urban soils. The research was carried out in three parks (Ci?migiu, Izvor and Unirea) in downtown Bucharest, where the intense car traffic accounts for 70% of the local air pollution. One site in particular (Ci?migiu park) was highly contaminated with Pb, Cd, Zn and Cu at about ten times the background levels of Pb. Collembola were sampled in 2006 (July, September, November) using the transect method: 2,475áindividuals from 34áspecies of Collembola were collected from 210ásamples of soil and litter. Numerical densities differed significantly between the studied sites.The influence of air pollutants on the springtail fauna was...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Soil contamination; Urban parks; Heavy metals; Species diversity.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/660588
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Biodiversity of Collembola in urban soils and their use as bioindicators for pollution PAB
Fiera,Cristina.
The objective of this work was to evaluate the effects of pollutants on the abundance and diversity of Collembola in urban soils. The research was carried out in three parks (Cişmigiu, Izvor and Unirea) in downtown Bucharest, where the intense car traffic accounts for 70% of the local air pollution. One site in particular (Cişmigiu park) was highly contaminated with Pb, Cd, Zn and Cu at about ten times the background levels of Pb. Collembola were sampled in 2006 (July, September, November) using the transect method: 2,475 individuals from 34 species of Collembola were collected from 210 samples of soil and litter. Numerical densities differed significantly between the studied sites.The influence of air pollutants on the springtail fauna was visible at the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metals; Soil contamination; Species diversity; Urban parks.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800010
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Cadmium phytoavailability in soils and evaluation of extractant effectiveness using an isotope technique Scientia Agricola
Guerra,Fernando; Trevizam,Anderson Ricardo; Fior,Rafael Carvalho; Muraoka,Takashi.
Large areas of land are nowadays contaminated by heavy metals and, it is therefore, important to monitor their levels in soils. Vegetables act as transfer mechanisms of such contaminants from soils to higher levels in the food chain. In this study, we aimed to evaluate the effectiveness of chemical extractants by the L-value method for Cd phytoavailability using the 109Cd radionuclide. In a greenhouse experiment, rocket plants (Eruca sativa L.) were cultivated in pots with samples from Typic Hapludox and Typic Quartzipsamment soils. Cadmium concentrations ranging from 0 to 16 mg kg-1 were added to a 200 mL solution containing 148 kBq 109Cd. The available Cd in the soil was extracted by DTPA, Mehlich-1, Mehlich-3, and a mixture of organic acids (acetic,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Potentially toxic element; L-value; Radioactive tracer; Weathered tropical soils; Soil contamination.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000500010
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Changes in the microbial community during bioremediation of gasoline-contaminated soil BJM
Leal,Aline Jaime; Rodrigues,Edmo Montes; Leal,Patrícia Lopes; Júlio,Aline Daniela Lopes; Fernandes,Rita de Cássia Rocha; Borges,Arnaldo Chaer; Tótola,Marcos Rogério.
Abstract We aimed to verify the changes in the microbial community during bioremediation of gasoline-contaminated soil. Microbial inoculants were produced from successive additions of gasoline to municipal solid waste compost (MSWC) previously fertilized with nitrogen-phosphorous. To obtain Inoculant A, fertilized MSWC was amended with gasoline every 3 days during 18 days. Inoculant B received the same application, but at every 6 days. Inoculant C included MSWC fertilized with N–P, but no gasoline. The inoculants were applied to gasoline-contaminated soil at 10, 30, or 50 g/kg. Mineralization of gasoline hydrocarbons in soil was evaluated by respirometric analysis. The viability of the inoculants was evaluated after 103 days of storage under refrigeration...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Gasoline degradation; Soil contamination; Microbial inoculants; Inoculant storage.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000200342
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Chemical and physical properties of organic residues Rev. Bras. Ciênc. Solo
Higashikawa,Fábio Satoshi; Silva,Carlos Alberto; Bettiol,Wagner.
Due to human activity, large amounts of organic residue are generated daily. Therefore, an adequate use in agricultural activities requires the characterization of the main properties. The chemical and physical characterization is important when planning the use and management of organic residue. In this study, chemical and physical properties of charcoal, coffee husk, pine-bark, cattle manure, chicken manure, coconut fiber, sewage sludge, peat, and vermiculite were determined. The following properties were analyzed: N-NH4+, N-N0(3)-, and total concentrations of N, P, S, K, Ca, Mg, Mn, Zn, Cu, and B, as well as pH, Electrical Conductivity (EC) and bulk density. Coffee husk, sewage sludge, chicken manure and cattle manure were generally richer in nutrients....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Substrate; Organic residue; Soil contamination; Residue disposal.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500026
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CHROMIUM IN SOIL ORGANIC MATTER AND COWPEA AFTER FOUR CONSECUTIVE ANNUAL APPLICATIONS OF COMPOSTED TANNERY SLUDGE Rev. Bras. Ciênc. Solo
Oliveira,Mara Lucia Jacinto; Araujo,Ademir Sérgio Ferreira de; Melo,Wanderley José de.
Tannery sludge contains high concentrations of inorganic elements, such as chromium (Cr), which may lead to environmental pollution and affect human health The behavior of Cr in organic matter fractions and in the growth of cowpea (Vigna unguiculata L.) was studied in a sandy soil after four consecutive annual applications of composted tannery sludge (CTS). Over a four-year period, CTS was applied on permanent plots (2 × 5 m) and incorporated in the soil (0-20 cm) at the rates of 0, 2.5, 5.0, 10.0, and 20.0 Mg ha-1 (dry weight basis). These treatments were replicated four times in a randomized block design. In the fourth year, cowpea was planted and grown for 50 days, at which time we analyzed the Cr concentrations in the soil, in the fulvic acid, humic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil contamination; Humic substances; Solid residue; Heavy metals; Plant growth; Trace elements.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000100297
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Comparison of digestion methods to determine heavy metals in fertilizers Rev. Bras. Ciênc. Solo
Silva,Ygor Jacques Agra Bezerra da; Nascimento,Clístenes Williams Araújo do; Biondi,Caroline Miranda; Preston,Welka.
The lack of a standard method to regulate heavy metal determination in Brazilian fertilizers and the subsequent use of several digestion methods have produced variations in the results, hampering interpretation. Thus, the aim of this study was to compare the effectiveness of three digestion methods for determination of metals such as Cd, Ni, Pb, and Cr in fertilizers. Samples of 45 fertilizers marketed in northeastern Brazil were used. A fertilizer sample with heavy metal contents certified by the US National Institute of Standards and Technology (NIST) was used as control. The following fertilizers were tested: rock phosphate; organo-mineral fertilizer with rock phosphate; single superphosphate; triple superphosphate; mixed N-P-K fertilizer; and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil contamination; Soil pollution; Chemical extraction.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200029
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Efeito do rejeito de mineração de níquel na germinação e crescimento de stylosanthes guianensis (aubl.) Sw. (Leguminosae) (2009). Infoteca-e
FREIRE, I. de S.; AGEADO, J. C.; MORAES, A. S.; ARAGÃO, T. P.; MUNIZ, D. H. de F.; MALAQUIAS, J. V.; SILVA, J. C. S.; ANDRADE, L. R. M. de; OLIVEIRA-FILHO, E. C. de; AQUINO, F. de G..
2009
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Recuperação ambiental; Forrageira; Forages; Germination; Nickel mining waste; Soil contamination; Growth; Environmental degradation; Environmental regeneration.
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/737091
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Effect of temperature on dissipation of [14C] atrazine in a Brazilian soil. Repositório Alice
ANDREA, M.M. de; MATALLO, M.B.; TOMITA, R.Y.; LUCHINI, L.C..
A dissipacao do herbicida 14C-atrazina do solo foi estudada por extracoes com solventes, cromotografia em camada delgada e tecnicas radiometricas. Os resultados apresentados mostram que ela foi diretamente proporcional aos aumentos de temperatura. Quanto maior a temperatura, menos residuos extraiveis e mais residuos ligados foram detectados. Ao final dos periodos de incubacao, os extratos de solo mantidos a 10.C e a 20.C continham atrazina mas tambem seu derivado hidroxi, e a 30.C e 40.C, mais hidroxiatrazina do que atrazina. A energia de ativacao de Arrhenius calculada foi muito alta (96 kj.mol.), provando a predominancia de reacoes quimicas que favorecem a hidrolese. Analises exploratorias dos residuos ligados ao solo detectaram mais de 90% como...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Dissipacao; Degradacao quimica; Residuo; Contaminacao do solo; Dissipation; Chemical degradation; Residues; Soil contamination.
Ano: 1997 URL: http://www.alice.cnptia.embrapa.br/handle/doc/89589
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Effects of high arsenic and fluoride soil concentrations on soybean plants Phyton
Bustingorri,C; Balestrasse,K; Lavado,RS.
Arsenic (As) and Fluoride (F) are present in many soils, affecting crops and posing risks in the food chain. We performed pot experiments on spiked soils enriched in these elements either individually or simultaneously, over a wide range of concentrations. Soybean biomass production, grain yield, As and F accumulation and distribution within the plant, and the antioxidant response to these stresses were analyzed. Arsenic was more toxic than F. At As levels >35 mg/kg and F levels >375 mg/kg, yield loss reached 60% and 30%, respectively. At the highest dose of As plants died within 2 weeks, whereas F showed no lethality. When they were applied simultaneously, detrimental effects were more important. As and F in plants increased in all soybean organs...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil contamination; Toxic elements in crops; Grain contamination; Oxidative stress; Soybean.
Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000200020
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Enrichment of arbuscular mycorrhizal fungi in a contaminated soil after rehabilitation BJM
Lopes Leal,Patrícia; Varón-López,Maryeimy; Gonçalves de Oliveira Prado,Isabelle; Valentim dos Santos,Jessé; Fonsêca Sousa Soares,Cláudio Roberto; Siqueira,José Oswaldo; de Souza Moreira,Fatima Maria.
Abstract Spore counts, species composition and richness of arbuscular mycorrhizal fungi, and soil glomalin contents were evaluated in a soil contaminated with Zn, Cu, Cd and Pb after rehabilitation by partial replacement of the contaminated soil with non-contaminated soil, and by Eucalyptus camaldulensis planting with and without Brachiaria decumbens sowing. These rehabilitation procedures were compared with soils from contaminated non-rehabilitated area and non-contaminated adjacent soils. Arbuscular mycorrhizal fungi communities attributes were assessed by direct field sampling, trap culture technique, and by glomalin contents estimate. Arbuscular mycorrhizal fungi was markedly favored by rehabilitation, and a total of 15 arbuscular mycorrhizal fungi...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glomeromycota; Heavy metals; Soil contamination; Mycorrhiza; Revegetation.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000400853
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Establishment of leguminous trees in the soil of a shooting range. Repositório Alice
SCORIZA, R. N.; CORREIA, M. E. F..
Shooting range activities risk contaminating the soil, posing potential risks to human health, the local biota, and water sources. Considering that soil organisms are the first to be affected by contamination, this study aimed to evaluate the initial growth of the leguminous tree Albizia polycephala and its association with microbes in soil taken from this area. The collected soil was placed in 60-ml tubes with legume seeds and stored in a greenhouse for 60 days. The differences in the legumes? growth were not related to the physical and chemical properties of the soil, norto its metal content, but rather to mycorrhizal colonization and nodulation, which were shown to be effective in creating favorable conditions. This indicates that the site under study...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Soil contamination; Protected area; Albizia polycephala; Soil restoration.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1114407
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Estudo do mecanismo de hiperacumulação de níquel em plantas nativas do Cerrado (2009). Infoteca-e
PAES LEME, V. B.; CORDEIRO, M. C. R.; NAGATA, T.; OLIVEIRA-FILHO, E. C. de; AQUINO, F. de G.; MIRANDA, Z. de J. G.; FRAGOSO, R. da R.; SILVA, M. S.; BARROS, L. M. G.; ALMEIDA, J.; ANDRADE, L. R. M. de.
2009
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Níquel; Metal pesado; Planta nativa; Cerrado; Indigenuous organisms; Nickel mining waste; Soil contamination; Growth; Environmental degradation; Environmental regeneration.
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/737103
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Etrace Express: manual de programa para análisis de riesgo de elementos traza en fertilizantes inorgánicos. Infoteca-e
MARCHI, G.; GUILHERME, L. R. G.; SILVA, A. B. DA; GONÇALVES, V. C.; PINHO, P. J. DE; PIERANGELI, M. A. P.; DANTAS, O. D.; HURTADO, S. M. C..
2010
Tipo: Documentos (INFOTECA-E) Palavras-chave: Software; Fertilizante; Elemento-traço; Segurança alimentar; Contaminação do solo; Fertilizer; Trace element; Food security; Soil contamination; Risk analysis.
Ano: 2010 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/898139
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Etrace Express: software for risk analysis of trace elements in inorganic fertilizers - user's manual and reference guide. Infoteca-e
MARCHI, G.; GUILHERME, L. R. G.; SILVA, A. B. DA; GONÇALVES, V. C.; PINHO, P. J. DE; PIERANGELI, M. A. P.; DANTAS, O. D..
2010
Tipo: Documentos (INFOTECA-E) Palavras-chave: Software; Fertilizante; Elementos-traço; Segurança alimentar; Contaminação do solo; Fertilizer; Trace element; Food security; Soil contamination; Risk analysis.
Ano: 2010 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/898281
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Growth, tolerance and zinc accumulation in Senna multijuga and Erythrina crista-galli seedlings AGRIAMBI
Scheid,Douglas L.; Marco,Rudinei D.; Grolli,André L.; Silva,Rodrigo F. da; Da Ros,Clovis O.; Andreazza,Robson.
ABSTRACT Zinc (Zn) is a micronutrient that is reaching toxic levels in the soil, with the intensification of agricultural and industrial activities. The objective of this study was to evaluate the growth, accumulation and tolerance of Erythrina crista-galli and Senna multijuga seedlings in soil with addition of increasing Zn levels. The study was conducted in a greenhouse for 120 days, using a completely randomized design in a 2 x 6 factorial arrangement, corresponding to two tree species (S. multijuga and E. crista-galli) and six doses of zinc in the soil (0, 200, 400, 600, 800 and 1000 mg kg-1) with six replicates. E. crista-galli and S. multijuga seedlings decreased root and shoot dry weight with increasing Zn doses. E. crista-galli and S. multijuga...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Native woody species; Heavy metal; Soil contamination; Phytostabilization.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000700465
Registros recuperados: 27
Primeira ... 12 ... Última
 

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