Data/hora: 11/06/2024 06:22:57

Provedor de dados: 	64	
País: 	Brazil	
Título: 	Water erosion risk prediction in eucalyptus plantations	
Autores: 	Silva,Mayesse Aparecida da; Silva,Marx Leandro Naves; Curi,Nilton; Oliveira,Anna Hoffmann; Avanzi,Junior Cesar; Norton,Lloyd Darrell.	
Data: 	2014-04-01	
Ano: 	2014	
Palavras-chave: 	USLE factors; Soil loss tolerance; Conservation practices; Forest management.	
Resumo: 	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 10.57 and crop and management factor values obtained for native forest, eucalyptus and planted pasture were 0.09, 0.12 and 0.22, respectively. Water erosion risk estimates for current land use indicated that the areas where should receive more attention were mainly areas with greater topographic factors and those with Cambisols. Planning of forestry activities in this region should consider implementation of other conservation practices beyond those already used, reducing areas with a greater risk of soil erosion and increasing areas with very low risk.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000200007	
Editor: 	Editora da Universidade Federal de Lavras	
Relação: 	10.1590/S1413-70542014000200007	
Formato: 	text/html	
Fonte: 	Ciência e Agrotecnologia  v.38 n.2 2014	
Fonte: 	info:eu-repo/semantics/openAccess