Application of hydrogeochemistry in quantification of karst water circulation
Water samples of the four kinds of groundwater in Langshi subterranean river system were analyzed from July 2003 to June 2004. The results indicate that Ca2+, Sr2+ concentrations are different in the four kinds of groundwater, but they have positive linear correlation. But the concentrations of Mg2+ and Sr2+are negatively correlated. These shows that the subterranean river water is a mixture of the other three types of groundwater. By Ca/Sr, Mg/Sr and the water chemistry mix model, it can be concluded that the contribution of epikarst groundwater to Langshi subterranean river varies from 20％ to 33％, and that of fracture water is between 50％ and 80％. The overland flow water recharges the subterranean river only when precipitation is abundant enough.
Karst water circulation Ca/Sr Mg/Sr Langshi subterranean river
T.Wang Z.Wang P.Wang
School of Environment Studies, China University of Geosciences, Wuhan, China
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
1191-1194
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）