In this study, return flow in a paddy field was simulated in order to supply reuse water to industries. Field experiment and historical data were obtained for a two-tank model parameter estimation and verification. The selected boundary of paddy fields was identified based on GIS. The simulation results showed that the reasonable reuse flow rate corresponding to the area of 6,036 ha in the first crop season and 1,994 ha in the second crop season. The volumes of the return flow and reuse water are 18.74 × 106 and 15.52 × 106 t, respectively. However, the pattern of rainfall, active capacity of the pond, and rate of water treatment restricted the amount of reuse water. An increase in the height of field’s bunds, active capacity of pond, and scale of purification unit will aid in the development of water reuse systems around paddy fields.
Chang, Yu-Chuan; Fan, Shih-Yi; Chen, Jen-Yan; and Kan, Chun-E
"A MODEL OF RETURN FLOW RECOVERY SYSTEM IN PADDY FIELD BASE ON GIS,"
Journal of Marine Science and Technology: Vol. 21:
2, Article 4.
Available at: https://jmstt.ntou.edu.tw/journal/vol21/iss2/4