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The reasonable scale of water reuse system in irrigation area: a case study of Chitong irrigation district in Taiwan |
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| Authors: | Shih-Yi Fan Jen-Yan Chen Yu-Chuan Chang Chun-E Kan Chang-Chi Cheng |
| Institution: | 1. Department of Civil Engineering, National Chung Hsing University, No. 250, Kuo Kuang Rd., Taichung, 402, Taiwan 2. Graduate Institute of Leisure and Recreation Management, Hsing Wu College, No. 101, Sec.1, Fenliao Rd., LinKou District, New Taipei City, 24442, Taiwan 5. 1F, No. 5-4, St. 5 Hua-Yuan, Keelung, Taiwan 3. Chi-Seng Water Management and Development Foundation, 3F, No. 18, Lane 90, Sec. 6, Minchuan East Rd., Taipei, 11465, Taiwan 4. Department of Industrial Management, Ching Yun University, No. 229, Jianxing Road, Zhongli City, Taoyuan County, 320, Taiwan |
| Abstract: | The aim of this study is to assess the potential of the irrigation return-flow in a water reuse system, for the supply of other local water users. Both field survey and water-budget analysis were conducted, and the Chitong irrigation district in Taiwan was selected as the case study area. The results indicate that through the regulation of a pond with the effective capacity of 20,000 m3, a stable supply of 10,000 CMD of reuse water can be generated if the return-flow from the irrigation area of 200 hectares, which is about the size of a rotation plot, is intercepted. However, as the irrigation and effective rainfall are low from December to March, which are considered high risk for water supply, the irrigation return-flow decreases accordingly, and a series of responding measures are also suggested. |
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