Data/hora: 12/06/2024 07:54:14

Provedor de dados: 	70	
País: 	Brazil	
Título: 	Sensibility analysis of the pearl model for pesticide leaching in the State of Mato Grosso do Sul, Brazil	
Autores: 	Scorza Júnior,Rômulo P.; Silva,João P. da.	
Data: 	2011-10-01	
Ano: 	2011	
Palavras-chave: 	Calibration; Pesticide leaching model; Inverse modeling.	
Resumo: 	For an accurate use of pesticide leaching models it is necessary to assess the sensitivity of input parameters. The aim of this work was to carry out sensitivity analysis of the pesticide leaching model PEARL for contrasting soil types of Dourados river watershed in the state of Mato Grosso do Sul, Brazil. Sensitivity analysis was done by carrying out many simulations with different input parameters and calculating their influence on the output values. The approach used was called one-at-a-time sensitivity analysis, which consists in varying independently input parameters one at a time and keeping all others constant with the standard scenario. Sensitivity analysis was automated using SESAN tool that was linked to the PEARL model. Results have shown that only soil characteristics influenced the simulated water flux resulting in none variation of this variable for scenarios with different pesticides and same soil. All input parameters that showed the greatest sensitivity with regard to leached pesticide are related to soil and pesticide properties. Sensitivity of all input parameters was scenario dependent, confirming the need of using more than one standard scenario for sensitivity analysis of pesticide leaching models.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000500014	
Editor: 	Associação Brasileira de Engenharia Agrícola	
Relação: 	10.1590/S0100-69162011000500014	
Formato: 	text/html	
Fonte: 	Engenharia Agrícola  v.31 n.5 2011	
Fonte: 	info:eu-repo/semantics/openAccess