| Dynamic of salinity of groundwater in Baoyang Irrigation District |
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| DOI：10.7606/j.issn.1000-7601.2012.02.36 |
| Key Words: irrigation district in loess tableland dynamic of underground water level dynamic of water quality correlation analysis |
| Author Name | Affiliation | | YU Lina | College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China | | CHEN Yong | Nanjing Water Planning and Designing Institute, Nanjing, Jiangsu 210006, China | | HE Liuxian | Xianyang Groundwater Monitoring and Management Station, Xianyang, Shaanxi 712000, China | | MA Yaoguang | College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| Based on the data of 1982—2009, we analyzed the chemical characteristics, dynamic of water level and water chemical properties of groundwater and investigated the water quality in Baoyang Irrigation District. Using Pearson index law and Stepwise regression analysis, we also analyzed the correlation between the groundwater salinity degree and ion composition, so as to reveal the effects of irrigation, external water diversion, groundwater exploitation and agricultural production activities on the groundwater water chemical type, water level and water qua
lity dynamic in the loess tableland irrigation district. The results show that the groundwater salinity degree changes are mainly controlled by anions (HCO3-, SO42-, Cl-), and Cr (VI) and NO-3-N are the main threat of pollution to groundwater. Facing the problems of water resources and water environment in the district, we proposed some countermeasures for the conservation of water resources and ecological environment which may be used as reference to the protection and utilization of groundwater resources of loess tableland irrigation districts. |
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