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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
08/12/2020 |
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Data da última atualização: |
16/12/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARTÍNI, A. F.; FAVARETTO, N.; DE BONA, F. D.; DURÃES, M. F.; SOUZA, L. C. de P.; GOULARTE, G. D. |
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Afiliação: |
ALINE F. MARTÍNI, DSEA-UFPR, Department of Soil Science and Agricultural Engineering, Federal University of Paraná, Curitiba, Brazil; NERILDE FAVARETTO, DSEA-UFPR, Department of Soil Science and Agricultural Engineering, Federal University of Paraná, Curitiba, Brazil; FABIANO DANIEL DE BONA, CNPT; MATHEUS F. DURÃES, DSEA-UFPR, Department of Soil Science and Agricultural Engineering, Federal University of Paraná, Curitiba, Brazi; LUIZ C. DE PAULA SOUZA, DSEA-UFPR, Department of Soil Science and Agricultural Engineering, Federal University of Paraná, Curitiba, Brazi; GABRIEL D. GOULARTE, DSEA-UFPR, Department of Soil Science and Agricultural Engineering, Federal University of Paraná, Curitiba, Brazil. |
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Título: |
Impacts of soil use and management on water quality in agricultural watersheds in Southern Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Land Degradation & Development, online, p. 1-18, Dec. 2020. |
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DOI: |
DOI: 10.1002/ldr.3777 |
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Idioma: |
Inglês |
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Conteúdo: |
Worldwide, agriculture is considered one of the main activities that influence water quality. The objective of this work was to evaluate the influence of soil use and management on water quality at the small watershed scale, in Southern Brazil. One watershed is characterized by production of annual crop seeds under no-tillage (zero tillage), with crop rotation and with terraces (Sarandi watershed?SW), while the other is characterized by production of grains in the summer and pasture with grazing in the winter, under no-tillage, without crop rotation and without terraces (Coxilha watershed?CW). Flow and climatic data were measured during 2 years. Water samples were manually taken at precipitation events and base flow over 1 year for laboratory analysis. During events of high volume, most of the rainfall was converted to base flow in SW, while in CW, most of the rainfall was transformed into overland flow. Overall, higher concentrations and losses of sediments and nutrients occurred in the CW, mainly during precipitation events in the winter crops season. Of the total nitrogen concentration in water, approximately 3% was ammonium-N and 58% was nitrate-N, on average, in both watersheds. For total phosphorus concentration in water, more than 75% was particulate in both watersheds, however, the bioavailable phosphorus accounted for 70% of the total phosphorus in the SW and for 35% in the CW. The higher concentration of bioavailable phosphorus in the SW indicates a short-term pollution potential, but in both watersheds, the water quality was impaired by the high concentrations of total phosphorus. In general, even with no-tillage, the results highlight the importance of best management practices as terracing, riparian vegetation, crop rotation, better crop systems and fertilizer management to avoid degradation of water resources. MenosWorldwide, agriculture is considered one of the main activities that influence water quality. The objective of this work was to evaluate the influence of soil use and management on water quality at the small watershed scale, in Southern Brazil. One watershed is characterized by production of annual crop seeds under no-tillage (zero tillage), with crop rotation and with terraces (Sarandi watershed?SW), while the other is characterized by production of grains in the summer and pasture with grazing in the winter, under no-tillage, without crop rotation and without terraces (Coxilha watershed?CW). Flow and climatic data were measured during 2 years. Water samples were manually taken at precipitation events and base flow over 1 year for laboratory analysis. During events of high volume, most of the rainfall was converted to base flow in SW, while in CW, most of the rainfall was transformed into overland flow. Overall, higher concentrations and losses of sediments and nutrients occurred in the CW, mainly during precipitation events in the winter crops season. Of the total nitrogen concentration in water, approximately 3% was ammonium-N and 58% was nitrate-N, on average, in both watersheds. For total phosphorus concentration in water, more than 75% was particulate in both watersheds, however, the bioavailable phosphorus accounted for 70% of the total phosphorus in the SW and for 35% in the CW. The higher concentration of bioavailable phosphorus in the SW indicates a short-term poll... Mostrar Tudo |
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Palavras-Chave: |
Catchment. |
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Thesaurus Nal: |
Best management practices; Crop production; No-tillage; Water conservation. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218970/1/ldr.3777.pdf
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Marc: |
LEADER 02625naa a2200253 a 4500
001 2127856
005 2020-12-16
008 2020 bl uuuu u00u1 u #d
024 7 $aDOI: 10.1002/ldr.3777$2DOI
100 1 $aMARTÍNI, A. F.
245 $aImpacts of soil use and management on water quality in agricultural watersheds in Southern Brazil.$h[electronic resource]
260 $c2020
520 $aWorldwide, agriculture is considered one of the main activities that influence water quality. The objective of this work was to evaluate the influence of soil use and management on water quality at the small watershed scale, in Southern Brazil. One watershed is characterized by production of annual crop seeds under no-tillage (zero tillage), with crop rotation and with terraces (Sarandi watershed?SW), while the other is characterized by production of grains in the summer and pasture with grazing in the winter, under no-tillage, without crop rotation and without terraces (Coxilha watershed?CW). Flow and climatic data were measured during 2 years. Water samples were manually taken at precipitation events and base flow over 1 year for laboratory analysis. During events of high volume, most of the rainfall was converted to base flow in SW, while in CW, most of the rainfall was transformed into overland flow. Overall, higher concentrations and losses of sediments and nutrients occurred in the CW, mainly during precipitation events in the winter crops season. Of the total nitrogen concentration in water, approximately 3% was ammonium-N and 58% was nitrate-N, on average, in both watersheds. For total phosphorus concentration in water, more than 75% was particulate in both watersheds, however, the bioavailable phosphorus accounted for 70% of the total phosphorus in the SW and for 35% in the CW. The higher concentration of bioavailable phosphorus in the SW indicates a short-term pollution potential, but in both watersheds, the water quality was impaired by the high concentrations of total phosphorus. In general, even with no-tillage, the results highlight the importance of best management practices as terracing, riparian vegetation, crop rotation, better crop systems and fertilizer management to avoid degradation of water resources.
650 $aBest management practices
650 $aCrop production
650 $aNo-tillage
650 $aWater conservation
653 $aCatchment
700 1 $aFAVARETTO, N.
700 1 $aDE BONA, F. D.
700 1 $aDURÃES, M. F.
700 1 $aSOUZA, L. C. de P.
700 1 $aGOULARTE, G. D.
773 $tLand Degradation & Development, online, p. 1-18, Dec. 2020.
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Registro original: |
Embrapa Trigo (CNPT) |
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| Registros recuperados : 7 | |
| 4. |  | MARTÍNI, A. F.; FAVARETTO, N.; DE BONA, F. D.; GONCALVES, A. O. Perda de água e sedimentos em microbacias hidrográficas agrícolas na região subtropical do Brasil. In: REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 20., 2016, Foz do Iguaçu. O solo sob ameaça: conexões necessárias ao manejo e conservação do solo e água: anais. Curitiba: SBCS, NEPAR; Londrina: IAPAR, 2016. Sessão Manejo e conservação do solo e da água, p. 489-491.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Solos; Embrapa Trigo. |
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| 7. | | VALANI, G. P.; MARTÍNI, A. F.; PEZZOPANE, J. R. M.; BERNARDI, A. C. de C.; OLIVEIRA, P. P. A.; COOPER, M.; MACKAY, A.; DOMINATI, E. Condition of the soil resource and provision of ecosystem services from a Brazilian Oxidic soil under conventional and integrated livestock-based systems. Journal of New Zealand Grasslands, v. 85, 2023. p. 73-82.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 7 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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