九州大学大学院農学研究院生産環境科学部門地域環境科学講座灌概利水学研究室
Laboratory of lrrigation and Water Utilization, Division of Regional Environment Science, Department of Bioproduction Environmental Science, Faculty of Agriculture, Kyushu University
九州大学大学院農学研究院生産環境科学部門地域環境科学講座灌概利水学研究室
Laboratory of lrrigation and Water Utilization, Division of Regional Environment Science, Department of Bioproduction Environmental Science, Faculty of Agriculture, Kyushu University
九州大学大学院農学研究院生産環境科学部門地域環境科学講座灌概利水学研究室
Laboratory of lrrigation and Water Utilization, Division of Regional Environment Science, Department of Bioproduction Environmental Science, Faculty of Agriculture, Kyushu University
The farmworkers in Yoshii-town which is located in Fukuoka prefecture are decreasing and aging gradually. The ratio of part-time farm households having more nonfarm income than agricultural income is increasing. As a result, the rationalization of the farm work would be needed. The control of water intake in the paddy field was reversibly estimated from the observation of water intake using the water level indicator in 600ha study site of Yoshii-town. The estimation could describe the change of the water management with the weather. The calculation using model including the reverse estimation had good agreement with the observation and it proved that this model is effective. According to the simulation using the model, the amount of water intake would be reasonable under condition that the present water management would be maintained. However, Much water intake would be necessary if the water management is rationalized.