1997
DOI: 10.1590/s0100-06831997000300014
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Adequação de métodos indiretos para estimativa da erodibilidade de solos com horizonte B textural no Brasil

Abstract: SUMMARY: ADEQUACY OF INDIRECT METHODS TO ESTIMATE THE ERODIBILITY OF SOILS WITH ARGILLIC HORIZON IN BRAZIL The assessment of the soil erodibility (K-factor) is essential for using the universal soil loss equation. The objective of this paper was to verify the adequacy of different indirect methods to estimate the K-factors of soils with argillic horizon from diverse geographic regions of

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Cited by 19 publications
(24 citation statements)
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“…According to the authors, such features can be attributed to the different characteristics and phenomena inherent to the process of rain formation in each region (south and southeast). of Marques et al (1997), Mannigel et al (2002) and Silva et al (2009). This variation in the results of erodibility in one single soil type demonstrates that this variable represents diverse meanings within the same class, which, in some ways, makes its acquisition not viable via field sampling for areas as extensive as the basin that was analyzed.…”
Section: Sediment Delivery Rate (Sdr)mentioning
confidence: 99%
“…According to the authors, such features can be attributed to the different characteristics and phenomena inherent to the process of rain formation in each region (south and southeast). of Marques et al (1997), Mannigel et al (2002) and Silva et al (2009). This variation in the results of erodibility in one single soil type demonstrates that this variable represents diverse meanings within the same class, which, in some ways, makes its acquisition not viable via field sampling for areas as extensive as the basin that was analyzed.…”
Section: Sediment Delivery Rate (Sdr)mentioning
confidence: 99%
“…No Brasil, podem ser citados os seguintes autores : Lombardi Neto & Bertoni (1975); Denardin (1990); Lima et al (1990); Roloff & Denardin (1994); Marques et al (1997c); Silva et al (1999); e Sá et al (2004). Porém, os métodos desenvolvidos nos EUA se evidenciaram inadequados às condições brasileiras (Henklain & Freire, 1983;Ângulo et al, 1985;Silva et al, 1986;Denardin, 1990;Lima, 1991;Silva et al, 1994;Marques et al, 1997b;Silva et al, 1999), bem como os desenvolvidos no Brasil ainda apresentam limitações ao seu uso (Marques et al, 1997c;Silva et al, 2000;Martins et al, 2011).…”
Section: Introductionunclassified
“…Por outro lado, Marques et al (1997), trabalhando com solos com B textural, não constataram elevação do parâmetro M, e poucos solos apresentaram Ma (mesmo significado de M, porém a dispersão sendo feita com água) acima de 300.000 g 2 kg -2 (Tabela 3). Tal comportamento é atribuído ao baixo índice de floculação daqueles solos.…”
Section: Resultsunclassified
“…3). Estes resultados confirmam observações de Marques et al (1997), os quais encontraram uma boa aproximação entre a erodibilidade observada e a estimada pelo modelo XVI no que se refere a solos que apresentavam a relação Ki igual a 1,97 + 0,13, ao passo que nos demais solos esta relação estava em torno de 2,28 + 0,26. Neste estudo, a dispersão dos dados foi bem inferior à encontrada por Marques et al (1997), e todos os solos apresentaram a relação Ki inferior a 2,03, o que está de acordo com as pressuposições de Marques et al (1997).…”
Section: Resultsunclassified
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