Hydrochemical indications of human impact on karst groundwater in a subtropical karst area, Chongqing, China

doi:10.1007/s12665-014-3073-4

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质科学院岩溶地质研究所

	Hydrochemical indications of human impact on karst groundwater in a subtropical karst area, Chongqing, China
	Pu, Junbing 1; Cao, Min 2; Zhang, Yuanzhu 2; Yuan, Daoxian 1,2; Zhao, Heping
刊名	ENVIRONMENTAL EARTH SCIENCES
	2014
卷号	72 期号:5 页码:1683-1695
关键词	Hydrochemistry Multiple isotopes Anthropogenic activities Karst groundwater SW China
ISSN号	1866-6280
DOI	10.1007/s12665-014-3073-4
英文摘要	The application of combined isotopic and hydrochemical compositions may be useful for evaluating water quality problems in karst aquifers in which it is difficult to distinguish the sources of solutes from the natural background of those due to human activities. Multiple isotopes (delta C-13-DIC, delta S-34-SO42-) and chemical parameters were measured in rainwater, groundwater and sewage in order to elucidate the solute sources and impacts from human activities and natural background in the Laolongdong karst catchment in Chongqing Municipality, SW China. Overall, the dissolution of carbonate rock controls Ca2+, Mg2+ and HCO3- content in rainwater and karst groundwater. SO42- originated mainly from gypsum dissolution in karst groundwater. Carbonate rocks in the studied site could be dissolved jointly by H2CO3 from the natural CO2-H2O reaction and other acids (organic acids and HNO3) from sewage and soils. Sewage discharge from urban areas and agriculture activities lead to the increase of NO3-, PO43- and Cl- in karst groundwater. To protect and sustainably utilize the karst aquifer, sewage originating from urban areas must be controlled and treated and the use of fertilizer should be limited.
学科主题	环境地质学
WOS关键词	SOUTHWEST CHINA ; SW CHINA ; SULFUR ; ISOTOPE ; WATERS ; CARBON ; RIVER ; CATCHMENTS ; EVOLUTION ; SULFATE
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000341085400032
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40256]
专题	中国地质科学院岩溶地质研究所
作者单位	1.Chinese Acad Geol Sci, Inst Karst Geol, Key Lab Karst Dynam MLR & Guangxi, Guilin 541004, Peoples R China 2.Int Res Ctr Karst Auspices UNESCO, Guilin 541004, Peoples R China 3.Southwest Univ, Sch Geog Sci, Inst Karst Environm & Rock Desertificat Control, Chongqing 400715, Peoples R China
推荐引用方式 GB/T 7714	Pu, Junbing,Cao, Min,Zhang, Yuanzhu,et al. Hydrochemical indications of human impact on karst groundwater in a subtropical karst area, Chongqing, China[J]. ENVIRONMENTAL EARTH SCIENCES,2014,72(5):1683-1695.
APA	Pu, Junbing,Cao, Min,Zhang, Yuanzhu,Yuan, Daoxian,&Zhao, Heping.(2014).Hydrochemical indications of human impact on karst groundwater in a subtropical karst area, Chongqing, China.ENVIRONMENTAL EARTH SCIENCES,72(5),1683-1695.
MLA	Pu, Junbing,et al."Hydrochemical indications of human impact on karst groundwater in a subtropical karst area, Chongqing, China".ENVIRONMENTAL EARTH SCIENCES 72.5(2014):1683-1695.