Estimativa da infiltração de água no solo na escala de bacia hidrográfica

Barros, Cláudia Alessandra Peixoto de; Minella, Jean Paolo Gomes; Tassi, Rutinéia; Dalbianco, Leandro; Ottonelli, Anaí Sangiovo

doi:10.1590/s0100-06832014000200020

Cited by 10 publications

(6 citation statements)

References 22 publications

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“…Determining the CN values for local conditions of climate, use, and management are essential to efficiently determine the appropriate practices (Do Valle Junior et al, 2019). The CN values derived in this study, for the conditions with and without terracing under no‐till, may improve soil and water conservation planning under conditions similar to the experiment in southern Brazil, as corroborated by De Barros et al (2014). The lower sensitivity of the characteristic variables and the CN in the macroplots compared to the catchments implies the roughness imposed by the amount of phytomass and chiselling is not enough to control runoff.…”

Section: Discussionsupporting

confidence: 84%

“…The estimate of apparent infiltration ( I ap ) in the macroplots and paired catchments was also sensitive to the adopted management systems. According to De Barros et al (2014), unlike traditional methods, I ap incorporates other processes that act in the landscape to express the real infiltration and its relationship with runoff formation. The infiltration models showed that its magnitude to higher values of rainfall is different for the three management systems.…”

Section: Discussionmentioning

confidence: 99%

Section: Runoff Controlmentioning

confidence: 99%

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Quantifying the impact of no‐till on runoff in southern Brazil at hillslope and catchment scales

Londero

Minella

Schneider

et al. 2021

Hydrological Processes

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No-till (NT) is a conservation system that improves the hydrological regime of agricultural slopes by providing greater surface protection and benefits to the physical and hydrological properties of soils. However, the isolated use of NT is not enough to control runoff and its associated degradation processes. Therefore, this study aimed to evaluate the runoff of agricultural slopes under NT under different runoff control conditions by monitoring 63 rainfall events in two 2.4-ha zero-order catchments and 27 rainfall events in four 0.6-ha macroplots. The catchments are paired and similar in terms of the type of soil and relief, but different regarding the presence of terraces. The macroplots have different soil and crop management systems. By using monitoring techniques, the hyetographs and hydrographs revealed the influence of the different types of management on the catchments and macroplots and allowed rainfall characteristics, runoff volume, runoff coefficients, water infiltration, peak runoff, response times, and curve number to be analysed. The terraces positively affected the NT and controlled runoff and related variables, in addition to infiltration significantly increasing and runoff reducing in the terraced catchment. All the hydrological information assessed pointed to the positive effects provided by the presence of the terraces. The results in the macroplots showed that high amounts of phytomass and/or chiselling do not control runoff and its correlated variables in medium and high magnitude events. The study concludes by underlining the need for additional measures to control runoff (terraces), even in areas under NT and with high phytomass production. Additionally, the study emphasizes the importance of monitoring at the catchment scale to better understand the hydrological behaviour of agricultural areas and provide the necessary parameters to effectively control runoff.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

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Quantifying the impact of no‐till on runoff in southern Brazil at hillslope and catchment scales

Londero

Minella

Schneider

et al. 2021

Hydrological Processes

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“…Constatou-se que as variáveis que mais influenciaram na deterioração da qualidade da água foram o oxigênio, a condutividade e o pH, o que também foi constatado por Souza e Gastaldini (2014) em seus estudos sobre qualidade da água do rio Almada no sul da Bahia. Barros et al (2014) fizeram um levantamento sobre a dinâmica de infiltração da agua em uma bacia hidrográfica no Rio Grande do Sul e Anelli (2015) avaliou a urbanização em favor da renaturalização da bacia hidrográfica do Córrego Lajeado em São Paulo.…”

Section: Classificação E Mapeamento Da Qualidade Da áGuaunclassified

Untitled

2016

Rev. ambiente água

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Source: SILVA, M. G. et al. Análise da influência de parâmetros ambientais no fluxo de metano em áreas alagáveis e lagoas permanentes na região do Rio Abobral, no Pantanal, Brasil. Rev. Ambient. Água, Taubaté, vol. 11 n. 2, p. 327-338, 2016 ABSTRACTBrazil has the highest water availability of any country in the world. Nearly 20% of all the world's rivers flow on Brazilian soil. Brazil's herds of cattle, pigs and poultry are among the largest in the world, and the country uses irrigated agriculture extensively, which accounts for most water consumption (approximately 70% of the water consumed in the world). The Brazilian Agricultural Research Corporation (Embrapa), the largest and most important public institution of Brazilian agricultural research, has attempted to develop environmental technologies in order to minimize the impact caused by the scarcity and pollution of water resources. This paper describes the technologies this institution offers to different regions. For this purpose, a descriptive and exploratory study was conducted in various Embrapa research units. The results showed that research on the rational use of water in agriculture has intensified since the early 2000s. However, the pace of growth in agricultural activities and their impact is much greater than that of the generated technologies, demonstrating the difficulty in striking a balance in this relationship. Furthermore, it is clear that that water scarcity and the increasing pollution of shallow and deep waters are complex issues with no short-term solution.Keywords: Brazilian agriculture, Embrapa, rational use of water.Tecnologias para o uso racional da água na agricultura brasileira RESUMO O Brasil é o país com a maior disponibilidade hídrica do mundo, quase 20% das vazões de todos os rios do planeta, fluem em solo brasileiro. Possui um dos maiores rebanhos mundiais de suínos, aves e gado e utiliza largamente a agricultura irrigada, principal consumidora dos recursos hídricos (cerca de 70% da água consumida no mundo). A Empresa Brasileira de Pesquisa Agropecuária -Embrapa, como a maior e mais importante instituição pública de pesquisa agropecuária brasileira, tem envidado esforços na tentativa de buscar soluções para, minimizar os impactos causados pela escassez e poluição dos recursos hídricos, por meio do desenvolvimento tecnologias ambientais. Esse trabalho descreve as tecnologias disponibilizadas por esta instituição para as diferentes regiões brasileiras. Para isso, foi desenvolvida uma pesquisa descritiva e exploratória junto às diversas unidades de pesquisa da Embrapa. Os resultados demonstram que houve uma intensificação das pesquisas voltadas para o uso racional da água na agricultura, a partir da década de 2000. Todavia, o ritmo de crescimento das atividades agropecuárias e seus impactos é bem maior do que o das tecnologias geradas, o que dificulta se encontrar um equilíbrio nesta relação. Além disso, deve-se considerar que o problema da escassez da água assim como da crescente poluição das águas rasas e profundas, é comple...

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“…According to Barros et al (2014), the triggering of hydrological processes, such as surface runoff, erosion and the transport of solutes, is controlled by the variability of soil water infiltration, which is influenced by the spatial heterogeneity of the relief and the soil and by spatial and temporal alterations in soil use and climatic variation.…”

Section: Introductionmentioning

confidence: 99%

Modeling of soil water infiltration with rainfall simulator in different agricultural systems

Santos

Souza

Montenegro

2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThis study aimed to compare models for predicting soil water infiltration rate and erosive rates using a rainfall simulator in different systems of common bean (Phaseolus vulgaris L.) cultivation. The evaluated mathematical models were: Kostiakov, Kostiakov-Lewis, Green-Ampt and Horton. Infiltration tests were carried out considering six treatments: bean cultivated on contour with rock barriers spaced at 0.5 m between crop rows (BC1); bean cultivated on contour with rock barriers spaced at 1.0 m between crop rows (BC2); bean cultivated downslope (BDS); bean cultivated on contour with mulch (BCM); bare soil (BS) and soil under natural cover (NC). Four replicates were considered, totaling 24 field tests. Kostiakov-Lewis's equation showed the lowest values of standard error. Soil water infiltration rate was equal to 53.3 mm h -1 in the natural vegetation treatment and to 9.49 mm h -1 in the downslope treatment. Surface roughness and the time of beginning of surface runoff were significantly higher for the conditions with mulch cover. Modelagem da infiltração de água no solo com simulador de chuvas em diferentes sistemas agrícolas R E S U M OObjetivou-se, com o presente trabalho, comparar modelos de previsão da velocidade de infiltração de água no solo e taxas erosivas em condição de campo utilizando simulador de chuvas, em diferentes sistemas de cultivo do feijão (Phaseolus vulgaris L.). Os modelos matemáticos avaliados foram Kostiakov, Kostiakov-Lewis, Green-Ampt e Horton. Os testes de infiltração foram realizados em seis tratamentos: feijão cultivado segundo curvas de nível (FN1) associado a fileiras de pedra, espaçadas 0,50 cm; feijão cultivado segundo curvas de nível (FN2) associado a fileiras de pedra, espaçadas 1,0 m; feijão cultivado morro abaixo (FMA); feijão cultivado em nível, com cobertura morta (CM); solo descoberto (SD) e solo com cobertura vegetal nativa (CN) em quatro repetições totalizando 24 testes de campo. A equação que apresentou menores valores de erro padrão foi a de KostiakovLewis. A taxa de infiltração básica de água no solo foi de 53,3 mm h -1

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Estimativa da infiltração de água no solo na escala de bacia hidrográfica

Cited by 10 publications

References 22 publications

Quantifying the impact of no‐till on runoff in southern Brazil at hillslope and catchment scales

Quantifying the impact of no‐till on runoff in southern Brazil at hillslope and catchment scales

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Modeling of soil water infiltration with rainfall simulator in different agricultural systems

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