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Exploitation of groundwater resources and protection of wetland in the yuqia basin

Journal of Groundwater Science and Engineering 2017年第3期5卷 222-234页

作者： ZHANG Chun-chao LI Xiang-quan GAO Ming HOU Xin-wei LIU Ling-xia WANG Zhen-xing MA Jian-fei Institute of Hydrogeology and Environmental Geology Shijiazhuang 050061 China

In yuqia basin, the climate is arid and the ecologic environment is fragile, and shortage of water resources has seriously restricted the sustainable development of local economy. In order to meet the needs of industrial and domestic water in the yuqia basin, numerical simulation was used to evaluate the groundwater resources and potential for exploitation. The results showed that the mathematical model and calculation parameters used were mainly in accordance with practical situation. The calculated value of the underground water level is consistent with measured value during the period of identification and validation. The total recharge of groundwater resources was 22.02×10~4 m^3/d, and the total drainage was 21.95×10~4 m^3/d at present. The yuqia River leakage is the main supply source of groundwater. There is no significant effect on area of wetland when water source place exploited by 2.5×10~4 m^3/d at alluvial-diluvial fan of yuqia River. After long-term exploitation, the spring flow reduces from 1.42×10~4 m^3/d to 1.01×10~4 m^3/d and wetland area reduces by 32.7% of original area. The calculation of water balance shows that it is safe to the yuqia basin, Da Qiadam Lake, the Mahai basin at downstream of yuqia River and wetland under the condition of water source place exploited by 2.5×10~4 m^3/d.

关键词： yuqia basin Groundwater resources Numerical simulation Water source Wetland

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