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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
09/10/2017 |
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Data da última atualização: |
17/10/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AGUIAR JUNIOR, T. R.; BORTOLOZO, F. R.; ROSA FILHO, E. F.; PARRON, L. M.; LUZ, L. D.; BRITO, A. G.; FERREIRA, M. T. |
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Afiliação: |
Terencio R. Aguiar Junior, Bolsista da Embrapa Florestas; F. R. Bortolozo, University of Lisbon, School of Agronomy, Department of Natural Resources, Environment and Landscape, Portugal; E. F. Rosa Filho, University of Lisbon, School of Agronomy, Department of Natural Resources, Environment and Landscape, Portugal; LUCILIA MARIA PARRON VARGAS, CNPF; L. D. Luz, UFBA; A. G. Brito, University of Lisbon, School of Agronomy, Department of Biosystems Sciences and Engineering, Portugal; M. T. Ferreira, UFPR. |
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Título: |
Fate of selected agrochemicals in a tropical karst aquifer: a five-year study. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Groundwater for Sustainable Development, v. 5, p. 187-192, Sept. 2017. |
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DOI: |
http://dx.doi.org/10.1016/j.gsd.2017.06.008 |
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Idioma: |
Português |
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Conteúdo: |
Water contamination by agricultural pollutants is one of the major environmental problems for terrestrial and aquatic life on earth. Recent studies have demonstrated the contamination of karst aquifers by pesticides and agricultural nutrients. However, the predominant research does not adequately address the main destination of these compounds. Also, research is targeted primarily towards Europe and North America. The objective of this study is to assess the fate of selected pesticides along the saturated layers of a karst aquifer, located in a tropical area. During a five-year period, 48 monthly collections were conducted by extracting samples from 24 shallow wells (8?9 m depth) and 24 deep wells (55?60 m depth). A total of 2880 samples were obtained. For all samples physical-chemical and pesticide analyses were performed. We found the presence of atrazine, lambdacyhalothrin, lactofen, fluazifop-p-butyl, chlorpyrifos, nitrate and nitrogen agricultural nutrients. The wells with 8?9 m depth had the highest concentration of the compounds studied in relation to deeper wells at 55?60 m. A significant difference was found regarding the types of pesticide (p<0.05) when comparing shallow and deep wells. Nutrients were also monitored and a decrease in the total nitrogen concentration between the wells with a lower depth (42.9 mg L-1) and the deepest wells (1.2 mg L-1) is observed along the period 2008?2013. |
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Palavras-Chave: |
Aquífero; Karst aquifer. |
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Thesagro: |
Lençol freático. |
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Thesaurus Nal: |
Aquifers; Groundwater contamination; pesticides. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02260naa a2200277 a 4500
001 2076997
005 2017-10-17
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.gsd.2017.06.008$2DOI
100 1 $aAGUIAR JUNIOR, T. R.
245 $aFate of selected agrochemicals in a tropical karst aquifer$ba five-year study.$h[electronic resource]
260 $c2017
520 $aWater contamination by agricultural pollutants is one of the major environmental problems for terrestrial and aquatic life on earth. Recent studies have demonstrated the contamination of karst aquifers by pesticides and agricultural nutrients. However, the predominant research does not adequately address the main destination of these compounds. Also, research is targeted primarily towards Europe and North America. The objective of this study is to assess the fate of selected pesticides along the saturated layers of a karst aquifer, located in a tropical area. During a five-year period, 48 monthly collections were conducted by extracting samples from 24 shallow wells (8?9 m depth) and 24 deep wells (55?60 m depth). A total of 2880 samples were obtained. For all samples physical-chemical and pesticide analyses were performed. We found the presence of atrazine, lambdacyhalothrin, lactofen, fluazifop-p-butyl, chlorpyrifos, nitrate and nitrogen agricultural nutrients. The wells with 8?9 m depth had the highest concentration of the compounds studied in relation to deeper wells at 55?60 m. A significant difference was found regarding the types of pesticide (p<0.05) when comparing shallow and deep wells. Nutrients were also monitored and a decrease in the total nitrogen concentration between the wells with a lower depth (42.9 mg L-1) and the deepest wells (1.2 mg L-1) is observed along the period 2008?2013.
650 $aAquifers
650 $aGroundwater contamination
650 $apesticides
650 $aLençol freático
653 $aAquífero
653 $aKarst aquifer
700 1 $aBORTOLOZO, F. R.
700 1 $aROSA FILHO, E. F.
700 1 $aPARRON, L. M.
700 1 $aLUZ, L. D.
700 1 $aBRITO, A. G.
700 1 $aFERREIRA, M. T.
773 $tGroundwater for Sustainable Development$gv. 5, p. 187-192, Sept. 2017.
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
02/12/2015 |
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Data da última atualização: |
19/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
SOUZA, M. I. F.; TORRES, T. Z. |
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Afiliação: |
MARCIA IZABEL FUGISAWA SOUZA, CNPTIA; TÉRCIA ZAVAGLIA TORRES, CNPTIA. |
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Título: |
Method for educational microcontent production. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
International Journal of Science and Research, v. 4, n. 11, p. 1472-1482, Nov. 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The article presents a comprehensive and detailed view of a method for educational microcontent production, obtained as a result of a doctoral thesis presented to the Faculty of Education of the University of Campinas, in the state of São Paulo, Brazil. The method systematizes didactically the practical orientations for producing digital content, to aid training actions aimed at multipliers from the areas of rural extension, technical assistance and technology transfer, with microtrainings through mobile devices. Nontraditional learning-teaching methodologies involve different actors of the educational process in different moments, from the programming of practical activities to the evaluation phase. In the proposed method, all actors participate in the didactic-pedagogical process. As such, apprentices/students and specialist/teachers play an active role, contrarily to traditional distance learning methodologies. The method of production of educational microcontent provides effective contributions for institutions of research, development and innovation (RDI), as the Brazilian Agricultural Research Corporation (Embrapa), owing to the incorporation of concepts and fundaments from continuous formation, in the modality of non-formal education, through microtrainings. |
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Palavras-Chave: |
Conteúdo educacional; Educação não formal; Language architecture; Linguagem pedagógica; Microcontent; Microconteúdo; Pedagogical architecture; Technological architecture. |
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Thesaurus NAL: |
Education; Learning. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/134676/1/Method-educational-Souza.pdf
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Marc: |
LEADER 02054naa a2200253 a 4500
001 2030403
005 2016-02-19
008 2015 bl uuuu u00u1 u #d
100 1 $aSOUZA, M. I. F.
245 $aMethod for educational microcontent production.$h[electronic resource]
260 $c2015
520 $aAbstract: The article presents a comprehensive and detailed view of a method for educational microcontent production, obtained as a result of a doctoral thesis presented to the Faculty of Education of the University of Campinas, in the state of São Paulo, Brazil. The method systematizes didactically the practical orientations for producing digital content, to aid training actions aimed at multipliers from the areas of rural extension, technical assistance and technology transfer, with microtrainings through mobile devices. Nontraditional learning-teaching methodologies involve different actors of the educational process in different moments, from the programming of practical activities to the evaluation phase. In the proposed method, all actors participate in the didactic-pedagogical process. As such, apprentices/students and specialist/teachers play an active role, contrarily to traditional distance learning methodologies. The method of production of educational microcontent provides effective contributions for institutions of research, development and innovation (RDI), as the Brazilian Agricultural Research Corporation (Embrapa), owing to the incorporation of concepts and fundaments from continuous formation, in the modality of non-formal education, through microtrainings.
650 $aEducation
650 $aLearning
653 $aConteúdo educacional
653 $aEducação não formal
653 $aLanguage architecture
653 $aLinguagem pedagógica
653 $aMicrocontent
653 $aMicroconteúdo
653 $aPedagogical architecture
653 $aTechnological architecture
700 1 $aTORRES, T. Z.
773 $tInternational Journal of Science and Research$gv. 4, n. 11, p. 1472-1482, Nov. 2015.
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Embrapa Agricultura Digital (CNPTIA) |
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