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| DOI： |
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| Research on the Multi-water Cycle and Transformation Model in the People’s Victory Canal Irrigation District |
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YAN Yijun, XU Jianxin, LU Jianhong
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Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China; School of Water Resources, North China University of Water Conservancy and Electric Power, Zhengzhou 450045, China; School of Environmental & Municipal Engineering, North China University of Water Conservancy and Electric Power, Zhengzhou 450045, China
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| Abstract: |
| According to irrigation-drainage systems, the multi-water cycle and transformation model were established in accordance with the local specifications in the People's Victory Canal Irrigation District in this study. The average annual transforming relationships of multi-water resources were then simulated in the system of water intake, conveyance, distribution and drainage, successively. The results showed that the established model was feasible and could simulate the processes of multi-water cycle and transformation well. Water transformation mainly occurred in the water conveyance and distribution system, with 176 million and 966 million m3 water resources for transformation respectively. While only 1 million and 13 million m3 water resources were transferred in the water intake and drainage system respectively. It was found that leakage was the main way of water transformation in the water intake system, which could increase the risk of soil secondary salinization and waterlogging damage along the conveyance channels. Due to the backward irrigation modes, the farmland leakage accounted for 28% of water transformation in the water distribution system. |
| Key words: “four-water” transformation; irrigation district system; the multi-water cycle and transformation model; the People’s Victory Canal Irrigation District |
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