Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/952622
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dc.contributor.authorAQUINO, R. F.pt_BR
dc.contributor.authorSILVA, M. L. N.pt_BR
dc.contributor.authorFREITAS, D. A. F. dept_BR
dc.contributor.authorCURI, N.pt_BR
dc.contributor.authorAVANZI, J. C.pt_BR
dc.date.accessioned2013-03-11T11:11:11Zpt_BR
dc.date.available2013-03-11T11:11:11Zpt_BR
dc.date.created2013-03-11pt_BR
dc.date.issued2013pt_BR
dc.identifier.citationRevista Brasileira de Ciência do Solo, Viçosa, MG, v. 37, p. 213-220, 2013.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/952622pt_BR
dc.descriptionRainfall erosivity is one of the main factors related to water erosion in the tropics. This work focused on relating soil loss from a typic dystrophic Tb Haplic Cambisol (CXbd) and a typic dystrophic Red Latosol (LVdf) to different patterns of natural erosive rainfall. The experimental plots of approximately 26 m2 (3 x 8.67 m) consisted of a CXbd area with a 0.15 m m-1 slope and a LVdf area with 0.12 m m-1 slope, both delimited by galvanized plates. Drainpipes were installed at the lower part of these plots to collect runoff, interconnected with a Geib or multislot divisor. To calculate erosivity (EI30), rainfall data, recorded continuously at a weather station in Lavras, were used. The data of erosive rainfall events were measured (10 mm precipitation intervals, accuracy 0.2 mm, 24 h period, 20 min intervals), characterized as rainfall events with more than 10 mm precipitation, maximum intensity > 24 mm h-1 within 15 min, or kinetic energy > 3.6 MJ, which were used in this study to calculate the rainfall erosivity parameter, were classified according to the moment of peak precipitation intensity in advanced, intermediate and delayed patterns. Among the 139 erosive rainfall events with CXbd soil loss, 60 % were attributed to the advanced pattern, with a loss of 415.9 Mg ha-1, and total losses of 776.0 Mg ha-1. As for the LVdf, of the 93 erosive rainfall events with soil loss, 58 % were listed in the advanced pattern, with 37.8 Mg ha-1 soil loss and 50.9 Mg ha-1 of total soil loss. The greatest soil losses were observed in the advanced rain pattern, especially for the CXbd. From the Cambisol, the soil loss per rainfall event was greatest for the advanced pattern, being influenced by the low soil permeabilitypt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectErodibilidade do solopt_BR
dc.subjectErosividade da chuvapt_BR
dc.titleSoil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2013-10-14T11:11:11Zpt_BR
dc.subject.thesagroChuvapt_BR
dc.subject.thesagroErosão hídricapt_BR
dc.subject.thesagroSolopt_BR
dc.subject.thesagroEnergia cinéticapt_BR
dc.subject.nalthesaurusRainpt_BR
dc.subject.nalthesaurusWater erosionpt_BR
dc.subject.nalthesaurusKineticspt_BR
riaa.ainfo.id952622pt_BR
riaa.ainfo.lastupdate2013-10-14pt_BR
dc.contributor.institutionREGIMEIRE FREITAS AQUINO, INSTITUTO FEDERAL DE EDUCAÇÃO, São João Del Rei, MG; MARX LEANDRO NAVES SILVA, UFLA; DIEGO ANTONIO FRANÇA DE FREITAS, UFLA; NILTON CURI, UFLA; JUNIOR CESAR AVANZI, CNPASA.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CNPASA)

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