Erosividade e características hidrológicas das chuvas de Rio Grande (RS)

Bazzano, Marcos Gabriel Peñalva; Eltz, Flávio Luiz Foletto; Cassol, Elemar Antonino

doi:10.1590/s0100-06832010000100024

Cited by 40 publications

(24 citation statements)

References 12 publications

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“…The power of rain to cause soil erosion is called rainfall erosivity (Cassol et al, 2008). Many studies quantifying rainfall erosivity have been published elsewhere, e.g., Moreira et al (2008), Bazzano et al (2007Bazzano et al ( , 2010 and Martins et al (2010). According to Bazzano et al (2010), knowledge on rain characteristics increases safety in the planning of soil conservation structures e.g., terraces, catchment areas, and of agricultural practices of soil conservation by maintaining the vegetation cover or by constructions (dams, drainage canals), and hydraulic flow structures for rainwater, justifying the determination of precipitation characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…Many studies quantifying rainfall erosivity have been published elsewhere, e.g., Moreira et al (2008), Bazzano et al (2007Bazzano et al ( , 2010 and Martins et al (2010). According to Bazzano et al (2010), knowledge on rain characteristics increases safety in the planning of soil conservation structures e.g., terraces, catchment areas, and of agricultural practices of soil conservation by maintaining the vegetation cover or by constructions (dams, drainage canals), and hydraulic flow structures for rainwater, justifying the determination of precipitation characteristics. Mesquita et al (2009) stated that to determine the dimensions of a rural construction it is fundamental to know about the expected rainfall conditions for an adequate planning of systems of agricultural terracing, road drainage, and dam constructions to minimize flooding, among others.…”

Section: Introductionmentioning

confidence: 99%

“…Mesquita et al (2009) stated that to determine the dimensions of a rural construction it is fundamental to know about the expected rainfall conditions for an adequate planning of systems of agricultural terracing, road drainage, and dam constructions to minimize flooding, among others. According to Bazzano et al (2010), the effective dimensions of hydraulic structures in urban areas and of agricultural terraces can be determined when aspects of rain risk and frequency are considered, which can be expressed by relationships of rainfall intensity-duration-frequency (IDF). In this sense, in places where pluviograph data are available, it is possible to fit the equation of heavy rainfall, also called IDF equation.…”

Section: Introductionmentioning

confidence: 99%

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Heavy rainfall equations for Santa Catarina, Brazil

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Henn²,

Oliveira³

2011

Rev. Bras. Ciênc. Solo

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Knowledge of intensity-duration-frequency (IDF) relationships of rainfall events is extremely important to determine the dimensions of surface drainage structures and soil erosion control. The purpose of this study was to obtain IDF equations of 13 rain gauge stations in the state of Santa Catarina in Brazil: Chapecó, Urussanga, Campos Novos, Florianópolis, Lages, Caçador, Itajaí, Itá, Ponte Serrada, Porto União, Videira, Laguna and São Joaquim. The daily rainfall data charts of each station were digitized and then the annual maximum rainfall series were determined for durations ranging from 5 to 1440 min. Based on these, with the Gumbel-Chow distribution, the maximum rainfall was estimated for durations ranging from 5 min to 24 h, considering return periods of 2, 5, 10, 20, 25, 50, and 100 years,. Data agreement with the Gumbel-Chow model was verified by the Kolmogorov-Smirnov test, at 5 % significance level. For each rain gauge station, two IDF equations of rainfall events were adjusted, one for durations from 5 to 120 min and the other from 120 to 1440 min. The results show a high variability in maximum intensity of rainfall events among the studied stations. Highest values of coefficients of variation in the annual maximum series of rainfall were observed for durations of over 600 min at the stations of the coastal region of Santa Catarina.Index terms: heavy rainfall, hydrology, drainage.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Heavy rainfall equations for Santa Catarina, Brazil

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Henn²,

Oliveira³

2011

Rev. Bras. Ciênc. Solo

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“…Este índice tem sido correntemente utilizado para representar a erosividade da chuva em condições brasileiras , pois leva em conta características físicas da chuva local (Bazzano et al, 2010). Ele representa o produto da energia cinética com que a gota de chuva atinge o solo e sua intensidade máxima por um período de 30 min (Hudson, 1973).…”

Section: íNdice De Erosividade (Ei 30 )unclassified

Perda De Solo Em Diferentes Sistemas De Plantio Por Meio De Chuvas Simuladas Em Lisímetros Volumétricos

et al. 2016

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RESUMOA produção de sedimentos provocada pelo impacto das gotas da chuva e o seu transporte pelo escoamento superficial têm consequências diretas sobre a qualidade e a fertilidade do solo. O uso de simuladores de chuva e de lisímetros volumétricos vêm sendo utilizados para compreender os processos erosivos do solo. Este trabalho teve por objetivo avaliar a produção e o transporte de sedimentos em três formas de manejo de solo (plantio convencional sem e com mobilização do solo e plantio direto) a partir de chuvas simuladas em lisímetros volumétricos no município de Pejuçara -RS, Brasil. A erosividade da chuva apresentou correlação (0,97) com a energia cinética da chuva. O plantio direto apresentou menor concentração de sedimentos (0,18 a 0,37 mg L -1 ) e menor perda de solo (0,12 kg ha -1 ). O plantio convencional sem revolvimento apresentou concentração de sedimentos de 0,35 a 0,91 mg L -1 e perda de solo de 0,25 kg ha -1 . O plantio convencional com revolvimento apresentou as maiores concentrações de sedimentos (1,82 a 5,59 mg L -1 ) e perdas de solo (2,75 kg ha -1 ).Palavras-chave: Energia da Gota; Erosividade; Escoamento Superficial; Agricultura; Manejo. ABSTRACTSoil losses in different cropping systems thought simulated rain in volumetric lysimiters. Sediment production by the rain drop impact and transport caused by runoff have direct

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“…Similarly, Wang et al (2016), in a study carried out in Beijing, identified that the advanced pattern was related to 55 to 68% of soil losses. In Brazil, many studies have also observed a predominance of erosive events classified as advanced (BAZZANO et al, 2010;CASSOL et al, 2007;MAZURANA et al, 2009). …”

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confidence: 99%

Water erosion associated with rainfall patterns in the extreme South of Bahia in eucalyptus post-planting

Guimarães

Silva

Bispo

et al. 2017

SCA

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Soil and water losses caused by water erosion represent a risk of environmental damage and loss of soil productivity, with economic, social and environmental consequences. Plant cover is an important ally against water erosion, together with the knowledge of rainfall characteristics. Thus, this study aimed to evaluate the soil and water losses and to determine rainfall patterns in two homogeneous eucalyptus plantations; one in Yellow Argisol, located in Teixeira de Freitas, and another in Humiluvic Spodosol, located in Caravelas, both in the Extreme South of the state of Bahia. Erosion plots were installed, and consisted of three treatments: bare soil, eucalyptus, and native forest. Rainfall data was obtained from an automatic gauging station, with 10 minute registration interval for erosivity (erosivity index EI 30 ) and rainfall pattern analyses. Higher soil losses were observed in Yellow Argisol, and the advanced rainfall pattern was predominant. Eucalyptus minimum tillage was efficient in reducing soil and water losses by water erosion.

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Erosividade e características hidrológicas das chuvas de Rio Grande (RS)

Abstract: RESUMO

Cited by 40 publications

References 12 publications

Heavy rainfall equations for Santa Catarina, Brazil

Heavy rainfall equations for Santa Catarina, Brazil

Perda De Solo Em Diferentes Sistemas De Plantio Por Meio De Chuvas Simuladas Em Lisímetros Volumétricos

Water erosion associated with rainfall patterns in the extreme South of Bahia in eucalyptus post-planting

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