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Multitemporal analysis of estimated soil loss for the river Mourão watershed, Paraná - Brazil/Análise multitemporal da perda de solo estimada para a bacia hidrográfica do rio Mourão, Paraná - Brasil

Graça, C H ; Passig, F H ; Kelniar, A R ; Piza, M A ; Carvalho, K Q ; Arantes, E J

Brazilian journal of biology, 2015-12, Vol.75 (4), p.120 [Periódico revisado por pares]

São Carlos: Instituto Internacional de Ecologia

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  • Título:
    Multitemporal analysis of estimated soil loss for the river Mourão watershed, Paraná - Brazil/Análise multitemporal da perda de solo estimada para a bacia hidrográfica do rio Mourão, Paraná - Brasil
  • Autor: Graça, C H ; Passig, F H ; Kelniar, A R ; Piza, M A ; Carvalho, K Q ; Arantes, E J
  • Assuntos: Mathematical models ; Rain ; Soil erosion ; Tillage ; Topography
  • É parte de: Brazilian journal of biology, 2015-12, Vol.75 (4), p.120
  • Descrição: The multitemporal behavior of soil loss by surface water erosion in the hydrographic basin of the river Mourao in the center-western region of the Parana state, Brazil, is analyzed. Forecast was based on the application of the Universal Soil Loss Equation with the data integration and estimates within an Geography Information System (GIS) environment. Results had shown high mean annual rain erosivity, with great concentration in January and December. As a rule, soils have average erodibilities, exception of Dystroferric Red Latisol (low class) and Dystrophic Red Argisol (high class). Although, the topographic factor was high, rates lower than 1 were predominant. The watershed showed a natural potential for low surface erosion. When related to usage types, yearly soil loss was also low, with more critical scores that reach rates higher than 150 ton.hasup -1^.year^sup -1^. Soil loss over the years did not provide great distinctions in distribution standards, although it becames rather intensified in some sectors, especially in the center-eastern and southwestern sections of the watershed.
  • Editor: São Carlos: Instituto Internacional de Ecologia
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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