| Prediction research on the groundwater table in upstream, midstream and down stream of Hetao Irrigation District based on weighted Markov Chain Model |
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| DOI：10.7606/j.issn.1000-7601.2014.05.035 |
| Key Words: water-saving rehabilitation groundwater table Markov Chain prediction Hetao Irrigation District |
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| Abstract: |
| This paper taken expanding and deepening the regional prediction research on the groundwater table as the purpose, adopted the random theory to establish the groundwater table prediction model based on the weighted Markov Chain to predict the interval value of groundwater table in the upstream, midstream and downstream of Hetao Irrigation District, Inner Mongolia. The result showed that: After the water saving rehabilitation, the groundwater table in midstream of Irrigation District will be at the interval of 2.380 to 2.742 and the groundwater table in downstream will be at the interval of 2.218 to 2.506. These two interval values are total larger than the critical groundwater dept
h of 2.0 m in Hetao Irrigation District, Inner Mongolia. So the salinization in middle and down stream of the Hetao Irrigation District will be expected to further alleviate in future. While the groundwater table in upstream will be at the interval of 1.227 to 1.727. These interval values are total less than 2.0 m which is the critical groundwater depth in the Hetao Irrigation District, Inner Mongolia. Therefore, the upstream of Hetao Irrigation District will be the key control region for groundwater table in future. |
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