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Hydrogeochemistry and dissolved inorganic carbon isotopic composition on karst groundwater in Maolan, southwest China
Guilin Han; Yang Tang; Qixin Wu
2010
Source PublicationEnvironmental Earth Sciences
Volume60Issue:4Pages:893–899
AbstractThe forest ecosystem in the Maolan karst forest, southwest China is the only concentrated, intact, and relatively stable karst forest ecosystem which has survived in the area at the same latitude in the world, and is a valuable karst forest plant resource as well. Groundwater samples from Maolan karst forest were collected from wells and springs during summer; and concentrations of major ions and dissolved inorganic carbon (DIC) isotopic compositions were measured. The pH values range from 7.2 to 8.3 results from the dissolution of carbonate, HCO3 is the dominant species of DIC in groundwater. Calcium and HCO3, followed by Mg2+and SO42− dominate the chemical composition of major ions in the groundwaters. Groundwater samples have δ13C values in the range from −8.1‰ to −16.6‰, which are lower than that of the other karst city groundwaters in the southwest China. Combining δ13CDICratios with measurements of HCO3 and pH clearly distinguishes the principal processes underlying the geochemical evolution of groundwater in Carboniferous carbonate aquifers, where processes can be both degradation of organic matters in the soil and the carbonate dissolution.
KeywordStable Carbon Isotope Dissolved Inorganic Carbon Karst Groundwater Southwest China
Subject Area环境地球化学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6831
Collection环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
Recommended Citation
GB/T 7714
Guilin Han,Yang Tang,Qixin Wu. Hydrogeochemistry and dissolved inorganic carbon isotopic composition on karst groundwater in Maolan, southwest China[J]. Environmental Earth Sciences,2010,60(4):893–899.
APA Guilin Han,Yang Tang,&Qixin Wu.(2010).Hydrogeochemistry and dissolved inorganic carbon isotopic composition on karst groundwater in Maolan, southwest China.Environmental Earth Sciences,60(4),893–899.
MLA Guilin Han,et al."Hydrogeochemistry and dissolved inorganic carbon isotopic composition on karst groundwater in Maolan, southwest China".Environmental Earth Sciences 60.4(2010):893–899.
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