Allowable Groundwater Withdrawal and Its Determination Basis in Tianjin Plain
详细信息
- 责任者：Wang Jiabing (Tianjin Institute of Geological Survey ; Tianjin 300191 ; China) ; Li Ping
- 刊名：Earth Science Frontiers
- 出版年：2010
- 卷期：17(6)
- 关键词：地下水开采 ; groundwater exploitation ; 地面沉降 ; land subsidence ; 天津 ; Tianjin
- 页码：p.221-226
- 图表：1 illu., 7 tables, 3 refs.
- 分类号：1701
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
According to the land subsidence caused by the withdrawal of deep groundwater, the No.2 and 3 aquifer groups in central and coastal plain of Tianjin are more suitable for mining because the groundwater exploitation in those aquifer groups will cause less land subsidence. The allowable groundwater withdrawal in the No.2 and 3 aquifer groups is 2.68×108 m3/a while the land settlement remains less than 10 mm/a. Development of the shallow fresh and brackish groundwater in the central plains, with allowable withdrawal of 1.64×108 m3/a, should be encouraged by technique and economy. Current groundwater exploitation in the piedmont plain has not caused obvious environmental geological hazards and the withdrawal is acceptable, where allowable groundwater withdrawal is 2.79×108 m3/a. The ecological environment of Tianjin Plain maintains a good condition and the total allowable groundwater withdrawal is 7.11×108 m3/a.