| Optimization of technical parameters for border irrigation based on principal component analysis and parameter design |
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| DOI：10.7606/j.issn.1000-7601.2016.06.14 |
| Key Words: border irrigation evaluation of irrigation quality principal component analysis parameter design robustness sensitivity optimization of technical parameter |
| Author Name | Affiliation | | XU Jia-tun | Key Laboratory of Agricultural Soil and Water Engineering of Northwest Agriculture and Forest University, Yangling, Shaanxi 712100, China
Chinese Arid Area Research Institute of Water-saving Agriculture, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China | | ZHU Da-jiong | Henan Water Conservancy Survey and Design Research Co. Ltd., Zhengzhou, Henan 450000, China | | CAI Huan-jie | Key Laboratory of Agricultural Soil and Water Engineering of Northwest Agriculture and Forest University, Yangling, Shaanxi 712100, China
Chinese Arid Area Research Institute of Water-saving Agriculture, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China | | WANG Jian | Key Laboratory of Agricultural Soil and Water Engineering of Northwest Agriculture and Forest University, Yangling, Shaanxi 712100, China
Chinese Arid Area Research Institute of Water-saving Agriculture, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| Pointed at the current situation as unreasonable evaluation of irrigation quality, lower irrigation quality and high fluctuation caused by more evaluation indexes for the irrigation quality, existed the spatial and temporal variation for the natural elements and possessed control error for the technical parameters. Based on the field irrigation experiment, using the principal component analysis calculated the comprehensive principal component of irrigation quality for the evaluation index. Utilized the parameter design method, carried out the optimization for the technical factors of the border irrigation. The results showed that: The comprehensive principle component of of irrigation quality can be represented 99.99% of variation information of irrigation quality and obeied the normal distribution. Meanwhile the variation of natural parameter and technical parameters error can be produced higher influence for the irrigation quality and its robustness. Through simulation and validation by the measured results, the optimal combination for the technical parameters of border irrigation in Jinghuiqu Irrigatin Distract were border width 3.5 to 4.5 m, border length around 120m, the unit width discharge about 9 L·s-1·m-1 and inflow cutoff ratio approximately 0.7. At this time, it will be a good irrigation quality and robustness. |
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