| Dynamic characteristics of groundwater level on Changwu tableland |
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| DOI：10.7606/j.issn.1000-7601.2010.03.09 |
| Key Words: groundwater level dynamic characteristic recharge Changwu tableland |
| Author Name | Affiliation | | WANG Rui | He' nan Polytechnic University, Jiaozuo, He' nan 454000, China
Institute of Soil and Water Conservation, CAS & MWR, Northsoest A & F University, Yangling, Shaanxi 712100, China | | LIU Wenzhao | Institute of Soil and Water Conservation, CAS & MWR, Northsoest A & F University, Yangling, Shaanxi 712100, China | | ZHAO Xiaopeng | Waler Resources Bureau of Changwu Counay，Changwu, Shannxi 713600, China |
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| Abstract: |
| According to the monitored data of groundwater level in four different time series during 1975~2006, well 551#, 552#, 554# and 555# on Changwu tableland, the annual and monthly changes of groundwater level were systematically analyzed. As to well 551# and 552# , which are near to the middle of the tableland, the monthly changes of groundwater level reach 0.26m and 0.29m respectively and are significantly affected by rainfall recharge. And the an-nual changes of groundwater level show“stable-downward” trend , which is affected by the same trend of annual precipi-tation and gradual increasing groundwater exploitation. The monthly change of groundwater levels of well 554# and 555#，which are far from the middle of the tableland, is small and the annual change is different, both of which are less
affected by the direct recharge of precipitation and are more affected by the deeper groundwater level and smaller physiog-nomy. Therefore, some suggestions on wisely using and protection of groundwater were put forward so as to supply refer-ential materials for the efficiency and sustainable use of groundwater on Changwu tableland, such as strengthening uniform management and restraining the exploitation, by constricting the number of motor-pumped wells and adopting the rule that the exploitation amount should comply with that of recharge, and scientific planning of infiltration depressions to increase the recharge of precipitation. |
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