Dissertação
Estudo das componentes do balanço de energia em uma cultura de arroz irrigado no Sul do Brasil
Fecha
2012-08-31Registro en:
SENA, Julio Cesar Lopes. Study of the energy balance components in an irrigated rice culture in Southern Brazil. 2012. 55 f. Dissertação (Mestrado em Geociências) - Universidade Federal de Santa Maria, Santa Maria, 2012.
Autor
Sena, Julio Cesar Lopes
Institución
Resumen
This dissertation presents a study on the experimental site of Cachoeira do Sul-RS,
Brazil. The objective of this study was to estimate the components of the Energy Balance
Closure on the surface of a rice paddy field. The research was divided into three periods: I-dry
soil, not irrigated and low vegetation, remaining from the last rice harvest, II - irrigated soil in
which the area was being prepared for planting pre-germinated rice, and period III - irrigated
soil already planted with rice and at reproductive phase. Also, we performed measurements of
leaf area index, rice height and monitoring of the water level on the field. Temperature
measurements at the water level on the crop were used to estimate the energy flow through
this order to improve the EBC. For data acquisition, were used temperature sensors in the soil,
heat flux plate, net radiation sensor, wind speed and direction and infrared open path gas
analyzer. The results showed that the sum of the components Energy Balance Closure are not
equivalent to the available energy in the surface, and the surface energy imbalance is
influenced by the surface coverage.