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Water erosion risk prediction in eucalyptus plantations Ciência e Agrotecnologia
Silva,Mayesse Aparecida da; Silva,Marx Leandro Naves; Curi,Nilton; Oliveira,Anna Hoffmann; Avanzi,Junior Cesar; Norton,Lloyd Darrell.
Eucalyptus plantations are normally found in vulnerable ecosystems such as steep slope, soil with low natural fertility and lands that were degraded by agriculture. The objective of this study was to obtain Universal Soil Loss Equation (USLE) factors and use them to estimate water erosion risk in regions with eucalyptus planted. The USLE factors were obtained in field plots under natural rainfall in the Rio Doce Basin, MG, Brazil, and the model applied to assess erosion risk using USLE in a Geographic Information System. The study area showed rainfall-runoff erosivity values from 10,721 to 10,642 MJ mm ha-1 h-1 yr-1. Some soils (Latosols) had very low erodibility values (2.0 x 10-4 and 1.0 x 10-4t h MJ-1 mm-1), the topographic factor ranged from 0.03 to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: USLE factors; Soil loss tolerance; Conservation practices; Forest management.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000200007
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