Cause for the Rise of the Groundwater Level in the Ganzhou Urban District and Its Surroundings, Zhangye City, Gansu Province, China and Countermeasures for the Prevention and Control of Its Induced Geohazards
详细信息
- 责任者：Zhang Hesheng (Institute of Hydrogeological and Engineering Geological Exploration ; Zhangye 734000 ; Gansu ; China) ; Yin Zheng
- 刊名：Geological Bulletin of China
- 出版年：2008
- 卷期：27(3)
- 关键词：地下水水位抬高 ; groundwater level rising ; 甘肃 ; Gansu
- 页码：p.404-413
- 图表：1 illus., 6 tables, 3 refs.
- 分类号：1701
- issnNo：ISSN1671-2552
- isbnNo：CN11-4648/P
摘要
The groundwater balance, hydrochemistry, environmental isotopes, meteorological-hydrological conditions, groundwater flow field and regional structural change in the Ganzhou urban district and its surroundings, Zhangye City, Gansu Province, have been studied. According to the studied results, the authors think that the main cause for the rise of the groundwater level in the study area is that: as the aquifuge in Quaternary loose strata was disrupted by the earthquake, the NW-trending deep fault in the basement of the central zone connected with the Qilian Mountains became a water-transmitting conduit, thus increasing the leakage recharge, and the increase of groundwater recharge in the basin resulted in the extensive rise of the water level.