Substances transport in an underground river of typical karst watershed during storm events

Hydrologic process, turbidity, suspended particles matters (SPM), major cations and TOC concentrations during two storm events in late April 2008 were monitored at Jiangjia Spring which is the outlet of Qingmu Guan underground river system. Scanning electron microscopy (SEM) and energy disperse spec...

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Bibliographic Details
Published inHuanjing kexue Vol. 30; no. 11; p. 3249
Main Authors Yang, Ping-Heng, Kuang, Ying-Lun, Yuan, Wen-Hao, Jia, Peng, He, Qiu-Fang, Lin, Yu-Shi
Format Journal Article
LanguageChinese
Published China 01.11.2009
Subjects
China
Environmental Monitoring - methods
Fresh Water - analysis
Geologic Sediments - analysis
Particle Size
Rain - chemistry
Rivers
Water Movements
Water Pollutants, Chemical - analysis
China
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Summary:Hydrologic process, turbidity, suspended particles matters (SPM), major cations and TOC concentrations during two storm events in late April 2008 were monitored at Jiangjia Spring which is the outlet of Qingmu Guan underground river system. Scanning electron microscopy (SEM) and energy disperse spectroscopy (EDS) analyses of SPM were also performed in order to investigate the transport characteristics of substances, such as SPM, turbidity and major cations in the underground river of typical karst watershed. The results show that at a single and well-developed karst conduit of Jiangjia Spring, discharge, turbidity, and concentrations of SPM, major cations and TOC respond promptly to the rainfall. The carbonate-derived cations including Ca2+, Mg2+ and Sr2+ are subject to dilution effect during the rising limb of discharge. The elevation in turbidity and SPM concentration is a result of the gradual increase of allochthonous substances (soil) flux input from the surface. Al3+, Fe, Mn, Ba2+ and TOC are concomitan
ISSN:0250-3301