A study of the variations in hydrology and hydrochemistry under the condition of a storm in a typical karst subterranean stream

HOBO automatic weather station,WGZ21 Photoelectric digital water table gauge and CTDP300 on-line water quality analyzer were set up to monitor hydrology,hydrochemistry and precipitation at the catchment of a subterranean stream during a storm.According to the liner relationships,the saturation index of calcite(SIc) and CO2 partial pressure(PCO2) were calculated with the WATSPEC program.The hydrochemical variation in the subterranean stream was analyzed.Results show that hydrochemical variation i...