| Analysis on water utilization efficiency of canal-system on fractal theory in Chaersen irrigation district based |
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| DOI：10.7606/j.issn.1000-7601.2017.02.30 |
| Key Words: chaersen irrigation district horton river's law efficiency of water utilization in canal-system fractal dimension |
| Author Name | Affiliation | | HUANG Yong-jiang | Institute of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China | | QU Zhong-yi | Institute of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China | | SHAO Zhong-ji | Chaersen Irrigation District Management Bureau of Inner Mongolia, Wulanhaote，Inner Mongolia 137400, China |
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| Abstract: |
| In order to provide a guidance for the canal water saving transformation and irrigation management, the relationship between the canal-system framework and the efficiency of water utilization in canal-system in Chaersen irrigation district were explored by using the fractal theory. The fractal dimension of the irrigation regions in Chaersen irrigation district (1.3 for Haotian, 3.6 for Yilelite, 2.5 for Wulanhada, 1.6 for Silihen, 1.7 for Guoguang, 1.8 for Hadanala) was calculated by the Horton River's law with the observation data on the irrigation canal system. The fractal dimension, combined with the actual measured data in 2013—2014, was used in analyzing the relationship between the fractal dimension and the efficiency of water utilization in canal-system. The results indicated that the efficiency of water utilization in canal-system and the fractal dimension of the irrigation regions showed a large opening parabola, the efficiency of water utilization in canal-system decreasing first and then increasing with the increase of the fractal dimension (D). The efficiency of water utilization in canal-system could be improved by properly reducing the fractal dimension in Chaersen irrigation district. To decrease the lateral channel length and increase the branch number and length was one way to improve the efficiency of water utilization in canal-system in Chaersen irrigation district in the future. |
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