IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Riverine Hydrochemical Characteristics of a Typical Karst Urban Watershed: Major Ion Compositions, Sources, Assessment, and Historical Evolution
Han, Ruiyin1,2; Xu, Zhifang1,2,3
2022-06-16
Source PublicationACS EARTH AND SPACE CHEMISTRY
ISSN2472-3452
Volume6Issue:6Pages:1495-1505
AbstractUrban watersheds suffer from great pressure concern-ing poor water carrying capacity in the karst area with a fragile ecology system and urbanization disturbance. The hydrochemistry of karst urban rivers plays a vital role in the maintenance of water ecology. This study determined the sources of major ions (Na+, K+, Mg2+, Ca2+, F-, Cl-, NO3-, SO42-, and HCO3-) in the Nanming urban watershed. The ion concentrations were dominated by the HCO3--Ca2+center dot Mg2+ type and complied with the component characteristics of major ions in karst rivers with the order of Ca2+ (mean: 83.1 mg/L) > Mg2+ (mean: 17.6 mg/L) > Na2+ (mean: 15.2 mg/L) > K+ (mean: 6.7 mg/L) and HCO3- (mean: 252.7 mg/L) > SO42- (mean: 101.5 mg/L) > Cl- (mean: 17.8 mg/L) > NO3- (mean: 17.7 mg/L). The chemical composition of the Nanming River was possibly affected by carbonate weathering (Ca2+, Mg2+, and HCO3-) and anthropogenic inputs (SO42-, NO3-, Cl-, Na+, and K+) through methods of principal component analysis (PCA) and ion ratios. The irrigation water quality and health risk were evaluated by the calculation of sodium adsorption ratio (SAR), soluble sodium percentage (Na%), residual sodium carbonate (RSC), and hazard quotient (HQ) and the comparison of corresponding guidelines. The results showed that the Nanming River was marginally suitable for agricultural irrigation but dangerous for direct drinking intake, and the non-carcinogenic health risk of riverine ions should also be of concern. The control of urban wastewater discharge should be paid more attention to improve the water quality in such an urban watershed.
Keywordhydrochemical characteristics karst area source identification risk assessment urban watershed
DOI10.1021/acsearthspacechem.2c00002
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences
WOS KeywordRARE-EARTH-ELEMENTS ; HUMAN HEALTH-RISK ; SHALLOW GROUNDWATER ; GUIZHOU PROVINCE ; TRACE-ELEMENTS ; XIJIANG RIVER ; CHEMISTRY ; QUALITY ; GEOCHEMISTRY ; CARBON
Language英语
Funding ProjectNational Natural Science Foundation of China[91747202] ; National Natural Science Foundation of China[41730857] ; National Key Research and Development Program of China[2020YFA0607700] ; Chinese Academy of Sciences[XDB26000000]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences
WOS Research AreaChemistry ; Geochemistry & Geophysics
WOS SubjectChemistry, Multidisciplinary ; Geochemistry & Geophysics
WOS IDWOS:000813433900001
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105897
Collection新生代地质与环境院重点实验室
Corresponding AuthorXu, Zhifang
Affiliation1.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
Recommended Citation
GB/T 7714
Han, Ruiyin,Xu, Zhifang. Riverine Hydrochemical Characteristics of a Typical Karst Urban Watershed: Major Ion Compositions, Sources, Assessment, and Historical Evolution[J]. ACS EARTH AND SPACE CHEMISTRY,2022,6(6):1495-1505.
APA Han, Ruiyin,&Xu, Zhifang.(2022).Riverine Hydrochemical Characteristics of a Typical Karst Urban Watershed: Major Ion Compositions, Sources, Assessment, and Historical Evolution.ACS EARTH AND SPACE CHEMISTRY,6(6),1495-1505.
MLA Han, Ruiyin,et al."Riverine Hydrochemical Characteristics of a Typical Karst Urban Watershed: Major Ion Compositions, Sources, Assessment, and Historical Evolution".ACS EARTH AND SPACE CHEMISTRY 6.6(2022):1495-1505.
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