Data/hora: 09/06/2024 00:44:18

Provedor de dados: | 70
País: | Brazil
Título: | Simulation of moisture profiles in a Latossol in Dourados region, in the State of Mato Grosso do Sul, Brazil
Autores: | Scorza Júnior,Rômulo P.; Silva,João P. da; Rigitano,Renê L. de O.
Data: | 2010-02-01
Ano: | 2010
Palavras-chave: | Soil water flow; SWAP; Inverse modeling.
Resumo: | The understanding of unsaturated soil water flow at process-level is essential to develop proper management actions for environmental protection in agricultural systems. One important tool for simulation of soil water flow that has been used worldwide is the SWAP model. The aim of this work was to test and to calibrate the SWAP model by inverse modeling to describe moisture profiles in a Brazilian very clayey Latossol in Dourados, State of Mato Grosso do Sul, Brazil. The SWAP model was tested in an experimental field of 0.09 ha cultivated with soybean and soil profiles were sampled eight times between December 2006 and October 2007. The SWAP input values (i.e. soil water retention curves and meteorological data) were based on in-situ measurements. Simulations with uncalibrated soil water retention curves resulted in moisture profiles that were too wet for almost all sampling dates, in particular between 0-10 cm depth. After calibration of soil water retention curves, there was a good improvement in the simulated moisture profiles, which were within the range of measured values for almost all depths and sampling dates.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162010000100003
Editor: | Associação Brasileira de Engenharia Agrícola
Relação: | 10.1590/S0100-69162010000100003
Formato: | text/html
Fonte: | Engenharia Agrícola  v.30 n.1 2010
Fonte: | info:eu-repo/semantics/openAccess