基于GMS的沧县地区浅层地下水控制性管理水位研究
Study on the controlled management water level of shallow groundwater in Cangxian area based on GMS
  
DOI:
中文关键词:  水位动态  数值模拟  控制性管理水位  阈值  沧县地区
英文关键词:dynamics of water level  numerical simulation  controlled management water level  threshold  Cangxian area
基金项目:国家自然科学基金(41372231;40872156);中央分成水资源费项目(1261430112066)
作者单位
李迎龙1,2,李海明1,2,谢新民3,董旺泉1,2,葛亚超1,2,王烨1,2 1.天津科技大学 滨海地下水利用与保护研究室天津 300457 2.天津市海洋资源与化学重点实验室天津3004573.中国水利水电科学研究院北京 100038 
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中文摘要:
      由于地下水的超采,已在沧县地区引发一系列环境地质问题。通过确定地下水控制性管理水位,来控制地下水的开采量,实现沧县地区浅层地下水资源的可持续利用。根据沧县地区浅层水位观测井的观测资料,分析了沧县地区浅层地下水位动态特征,发现地下水位呈周期性变化。在充分了解沧县地区水文地质条件的基础上,利用GMS软件建立沧县地区地下水水流模型。在现有的开采基础上,预测不同频率降水量情景下沧县地区浅层地下水控制性管理水位,并确定其阈值。四种情景下沧县地区浅层地下水控制性管理水位阈值分别为:-6.40~7.00 m、-4.30~7.30 m、-4.70~7.10 m、-4.50~7.00 m。最终确定沧县地区浅层地下水控制性管理水位阈值为-6.40~7.30 m。
英文摘要:
      Due to the over-exploitation of groundwater, a series of environmental and geological problems have been triggered in Cangxian area. This paper was intended to determine the controlled management level of groundwater? as a way to control the exploitation quantity of groundwater and to realize sustainable utilization of the shallow groundwater resources in Cangxian area. Based on the observation data from the shallow water level observation wells in Cangxian area, we analyzed the dynamic characteristics of shallow groundwater level in Cangxian area, and found a periodical change of the groundwater level. Based on a substantial understanding of the hydrogeological conditions in Cangxian area, we developed a groundwater flow model of Cangxian area with the GMS software. On the basis of the current exploitation situation, we predicted the controlled management level of shallow groundwater in Cangxian area under 4 different precipitation frequency scenarios, and determined the threshold value. The threshold values under the 4 scenarios were -6.40–7.00 m, -4.30–7.30 m, -4.70–7.10 m, -4.50–7.00 m respectively. The controlled management water level threshold of the shallow groundwater in Cangxian area was finalized to be -6.40–7.30 m.
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