Evaluation of a computer model to simulate water table response to subirrigation.
AUTOR(ES)
ROSA, J.A.
FONTE
Pesquisa Agropecuária Brasileira
DATA DE PUBLICAÇÃO
2011
RESUMO
The objective of this work was to evaluate the water flow computer model, WATABLE, using experimental field observations on water table management plots from a site located near Hastings, FL, USA. The experimental field had scale drainage systems with provisions for subirrigation with buried microirrigation and conventional seepage irrigation systems. Potato (Solanum tuberosum L.) growing seasons from years 1996 and 1997 were used to simulate the hydrology of the area. Water table levels, precipitation, irrigation and runoff volumes were continuously monitored. The model simulated the water movement from a buried microirrigation line source and the response of the water table to irrigation, precipitation, evapotranspiration, and deep percolation. The model was calibrated and verified by comparing simulated results with experimental field observations. The model performed very well in simulating seasonal runoff, irrigation volumes, and water table levels during crop growth. The two-dimensional model can be used to investigate different irrigation strategies involving water table management control. Applications of the model include optimization of the water table depth for each growth stage, and duration, frequency, and rate of irrigation.
ASSUNTO(S)
solanum tuberosum drainage irrigation methods drenagem métodos de irrigação
ACESSO AO ARTIGO
http://www.alice.cnptia.embrapa.br/handle/doc/108855Documentos Relacionados
- Development of a Computer Application to Simulate Porous Structures
- A multilayer model to simulate rocket exhaust clouds
- KLONER; a computer program to simulate recombinant DNA strategies by restriction map manipulation.
- Development of A Darcy-flow model applied to simulate the drying of shrinking media
- Water loss in table grapes: model development and validation under dynamic storage conditions