Fatores relacionados à suscetibilidade da erosão em entressulcos sob condições de uso e manejo do solo

Translated title of the contribution: Factors influencing susceptibility to interrill soil erosion under different land use and management conditions

Flávio P. de Oliveira, Diogo C. Buarque, Ana C. Viero, Gustavo H. Merten, Elemar A. Cassol, Jean P.G. Minella

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

This study evaluated factors related to the suscetibility to the interrill soil erosion in an Entisol subjected to different degrees of soil use and management. The experiment was carried out under laboratory conditions using samples collected from tobacco fields and disturbed soil placed in erosion pans measuring (0.23 m2) with a slope of 0.09 m m-1. The experimental design was in randomized blocks. Simulated rainfall intensity of 100 mm h-1 was applied to the following treatments: (I) conventionally tilled soil; (II) no-till soil; and (III) native forest soil. Total kinetic energy (rainfall and runoff) to soil loss, average rate of detachment, and aggregate stability indexes were used to assess susceptibility to interrill erosion. Results show that the factors related with the susceptibility to interrill erosion are associated not just to the characteristics and properties that confer cohesivity to soil, but also to those factors that affect runoff hydraulics and therefore the sediment transport phase as well.

Translated title of the contributionFactors influencing susceptibility to interrill soil erosion under different land use and management conditions
Original languagePortuguese
Pages (from-to)337-346
Number of pages10
JournalRevista Brasileira de Engenharia Agricola e Ambiental
Volume16
Issue number4
DOIs
StatePublished - Apr 2012

Keywords

  • Erosive processes
  • Hydraulic variables of runoff
  • Simulated rainfall
  • Soil erosion

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