| Analysis and simulation of groundwater table change of Yinbei irrigation region in Qingtongxia |
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| DOI：10.7606/j.issn.1000-7601.2007.02.25 |
| Key Words: groundwater table change law principal component analysis VLBP neural network |
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| Abstract: |
| Soil salinization of Yinbei irrigation region in Qingtongxia is very serious and restricts healthy development of agriculture.The main reason of soil salinization of irrigation region is excessively high groundwater table.In this paper, the reason of high groundwater table is analyzed, major factors influencing the groundwater table of irrigation region are ascertained, the change law of groundwater table within and between years is researched, and the groundwater table change is simulated with neural network model based on change velocity algorithm.These researches have laid theory foundation for controlling the groundwater table and soil salinization of Yinbei irrigation region. |
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