Temporal and spatial variations in hydrogeochemistry of cave percolation water and their implications for four caves in Guizhou, China
  • 【摘要】

    Soil water and cave drip water from four cave systems in Guizhou, Southwest China, were monitored and sampled monthly from April 2003 to May 2004 to understand spatio-temporal variations in hydro-geoc... 展开>>Soil water and cave drip water from four cave systems in Guizhou, Southwest China, were monitored and sampled monthly from April 2003 to May 2004 to understand spatio-temporal variations in hydro-geochemistry of cave percolation water. The results indicated that among the 5 drip water sites from the Liangfeng Cave (LFC), there were no significant differences among the hydro-geochemical parameters. In the Xiniu Cave (XNC), the drip rates were variable and responded quickly to precipitation events in the 3# (No. 3) drip site with variable water head; both bulk and variation in drip rates were smaller in the 2# with constant water head. However, in the Qixing Cave (QXC) and Jiangjun Cave (JJC), drip rates, concentrations of major ions and saturation index for calcite (SI C ) were smaller, and Mg/Ca ratios in Group I (1#, 2#, 6#, 7# and 8# in the QXC; 2# and 3# in the JJC) were larger than those in Group II (3#, 4#, 5# and 9# in the QXC; 1# and 4# in the JJC). These differences might be the result of different hydrogeological processes above the caves, which are divided into five categories based on hydro-geochemistry data. The formation of some proxies in speleothem, such as Mg/Ca, is likely to be affected by those processes. 收起<<

  • 【作者】

    LUO Weijun  WANG Shijie  XIE Xingneng  ZHOU Yunchao  LI Tingyu 

  • 【作者单位】

    State Key Laboratory of Environmental Geochemistry/Puding Karst Ecosystem Research Station

  • 【刊期】

    中国地球化学学报(英文版) EI 2013年2期

  • 【关键词】

    cave drip water  hydro-geochemistry  paleo-climate  karst  Guizhou  China  cave drip water  hydro-geochemistry  paleo-climate  karst  Guizhou  China 

  • 【基金项目】

    project was funded jointly by the Orientation Project of Knowledge Innovation Program sponsored by the Chinese Academy of Sciences (No. kzcx2-yw-306) the National Natural Science Foundation of China (Nos.41003054 and 90202003)