Infiltração de água no solo em áreas cultivadas com cana-de-açúcar sob diferentes sistemas de colheita e modelos de ajustes de equações de infiltração

Tomasini, Bruno Andrade; Vitorino, Antônio Carlos Tadeu; Garbiate, Marcos V.; Souza, Cristiano Márcio Alves de; Sobrinho, Teodorico Alves

doi:10.1590/s0100-69162010000600007

Cited by 19 publications

(18 citation statements)

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“…Another soil factor that favors runoff is the superficial seal of clay pores (soil crusting), which diminishes the capacity of the soil for infiltration and reduces superficial roughness. These findings are in agreement with the descriptions of Bezerra and Cantalice (2006), Brandão et al (2007), Tomasini et al (2010) and Garbiate et al (2011). Sediment yield under sugarcane decreased since March 20012, probably due to soil coverage by leaves (not measured) and rainfall reduction during the dry season.…”

Section: Discussionsupporting

confidence: 92%

Patterns Over a 24-Year Period Show an Increase in Native Vegetation Cover and Decreased Fragmentation in Andean Temperate Landscapes, Chile

2016

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C. Youlton, A. P. Bragion, and E. Wendland. 2016. Experimental evaluation of sediment yield in the first year after replacement of pastures by sugarcane. Cien. Inv. Agr. 43(3): 374-383. Sugarcane cultivation has expanded in south-eastern Brazil in the last decade, mainly for biofuel (ethanol) production. This expansion has occurred on land that was originally covered with pasture and used for livestock production. The purpose of this study is to experimentally determine the impact on runoff and erosion produced by replacing pasture with sugarcane. Runoff plots of 100 m 2 were established at a farm in Itirapina, Sao Paulo (SP), Brazil, on a hill with a 9% slope and sandy soil. An 18-year-old pasture and a new sugarcane plantation were studied. The degrees of runoff and erosion were determined after each rain event for the first year of cultivation. From 1,459 mm of annual rainfall, the pasture had lower runoff than the sugarcane cover (40.5 vs 56.1 mm, respectively). Soil erosion under pasture was lower than sugarcane, where the highest values were recorded at the beginning of the rainy season, just after cane planting. In the first year, the results indicate an increase in soil loss of almost 500% for sugarcane compared to pasture, from 0.58 to 2.58 Mg ha -1 year -1 under our experimental conditions. Overall, changing land cover from pasture to sugarcane increases soil erosion.

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Section: Discussionsupporting

confidence: 92%

Patterns Over a 24-Year Period Show an Increase in Native Vegetation Cover and Decreased Fragmentation in Andean Temperate Landscapes, Chile

2016

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“…An increase in runoff due to crusting and sealing of the soil surface was observed in the field as described in the literature [23,[37][38][39], due to the decreased roughness of the soil [28] and due to sedimentation and break-overs of the contour beds. Sediment was transported along the plots by the concentrated runoff, especially during events with high amounts of rainfall, high intensity, or high frequency, when runoff accumulated along the plot length.…”

Section: Erosionmentioning

confidence: 59%

Changes in Erosion and Runoff due to Replacement of Pasture Land with Sugarcane Crops

et al. 2016

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Abstract:The planting of sugarcane crops has expanded in the last decade in the southeast of Brazil, mainly due to its use for biofuel production, such as ethanol. This expansion in the State of São Paulo has occupied land that was previously used for cattle production. The change in land use affects soil and water through changes in ground cover and disturbance associated with farming practices. The objective of the following study was to determine the impact on runoff and erosion resulting from the conversion of pastureland to sugarcane for biofuel production. Erosion plots measuring 100 m 2 were built on a farm in Itirapina-SP, Brazil, on land with a slope gradient of 9% and soil composed of Quartz-sand Neosols (Typic quartzipsaments). The treatments were an 18-year old pasture and a new sugarcane plantation, with three replicates for each. After each rainfall episode, erosion and runoff were monitored during the first and second years after sugarcane was planted. The results show increased runoff and soil loss during the first year, though levels decreased in the second year when the sugarcane residue mulch ground cover increased. In addition, the necessary rainfall characteristics (e.g., intensity, duration) required to produce runoff and soil erosion were identified.

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“…Porém, o segundo termo da equação de método também causa uma dificuldade no ajuste do início da curva, já que a curva de uma exponencial tem um desenho bem característico, o que faz alguns pontos ficarem fora da curva caso o decaimento da taxa de infiltração seja muito acentuada. PAIXÃO et al, 2009;SCHREINER et al, 2010;TOMASINI, et al, 2010;SANTOS, 2014, também Analisando o comportamento do desenho das curvas é possível notar fatos já relatados por Sobrinho et al(2003) e Tomasini et al(2010), existe uma tendência dos modelos em superestimar a velocidade de infiltração no inicio do teste e em contra partida, os modelos tende a subestimar a velocidade no final do teste, com exceção do Kostiakov-Lewis que continua a superestimar.…”

Section: Resultsunclassified

Velocidade De Infiltração Da Água No Solo Cultivado Por Milho Doce Com Cobertura De Crotalária

Santos¹,

Filho²,

Carvalho³

et al. 2016

RBAI

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RESUMOEste trabalho foi realizado em uma área experimental localizada na Estação Experimental da Universidade Federal de Sergipe -UFS, localizada aproximadamente a 20 Km de Aracaju. Objetivou-se comparar a velocidade de infiltração de um Argissolo vermelho amarelo em diferentes manejos de uso do solo e com o cultivo de crotalária (Crotalariajuncea) como cobertura em sucessão à cultura do milho doce (Zeamays L.), analisando o impacto do uso agrícola a velocidade de infiltração de água no solo e a adequação dos modelos de Horton (1940), Kostiokov (1932), Kostiokov-Lewis (1945) e Phillip (1957. Os manejos de uso do solo consistiam de cultivo convencional, cultivo mínimo e plantio direto. A área foi dividida em três faixas, sendo que cada faixa contém um tipo de manejo, dividida em nove subparcelas que medem aproximadamente 60 m 2 , havendo três repetições distribuídas ao acaso. A velocidade de infiltração foi determinada com a metodologia dos duplos anéis concêntricos. Foi utilizado o software VIBK para a determinação dos valores obtidos e estimados da velocidade de infiltração da água no solo. Concluiu-se que o sistema de plantio direto proporcionou maiores taxas de infiltração da água no solo quando comparado com o convencional e mínimo. Os modelos de estimativa se ajustaram melhores em solos que sofreram menos ação antrópica e o modelo de Philips se adequou melhor as condições do local.Palavras-chave: plantio direto, plantio convencional, cultivo mínimo, modelos de estimativa da infiltração. WATER INFILTRATION RATE IN SOIL GROWN IN SWEET CORN WITHCROTALARIA COVERAGE ABSTRACTThis work was carried out in an experimental area located in the Experimental Station of the Federal University of Sergipe -UFS, located about 20 km from Aracaju. This study aimed to

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Infiltração de água no solo em áreas cultivadas com cana-de-açúcar sob diferentes sistemas de colheita e modelos de ajustes de equações de infiltração

Cited by 19 publications

References 10 publications

Patterns Over a 24-Year Period Show an Increase in Native Vegetation Cover and Decreased Fragmentation in Andean Temperate Landscapes, Chile

Patterns Over a 24-Year Period Show an Increase in Native Vegetation Cover and Decreased Fragmentation in Andean Temperate Landscapes, Chile

Changes in Erosion and Runoff due to Replacement of Pasture Land with Sugarcane Crops

Velocidade De Infiltração Da Água No Solo Cultivado Por Milho Doce Com Cobertura De Crotalária

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