IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)
Assessment of the sources of nitrate in the Chaohu Lake, China, using a nitrogen and oxygen isotopic approach
Xi, Shanshan1,2; Liu, Guijian1,2; Zhou, Chuncai1,2; Wu, Lei1; Liu, Rongqiong1
2015-07-01
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
Volume74Issue:2Pages:1647-1655
SubtypeArticle
Abstract

Nitrate pollution is an increasingly serious problem in Chaohu Lake, China, with the rapid development of urbanization and industrialization surrounding the lake. The dual isotopic approach was employed to determine the sources of nitrate. Thirty-five and thirty-one water samples were collected in summer and winter, respectively. The concentrations of nitrate in the surface waters and lake waters were lower in summer than that in winter, due to the dilution of the wet deposition in summer. The concentrations of nitrate in the western part of the Chaohu Lake are higher than that in the eastern part, due to the inflow river discharge. The delta N-15 values of nitrate in winter are higher than that in summer, which is consistent with the seasonal variation of nitrate. The primary nitrate sources in northwestern part of the Chaohu Lake are the input of soil organic nitrogen and sewage/manure effluents, while the soil organic nitrogen is the main source in the southwestern and eastern part of the Chaohu Lake. Meanwhile, the data concerning delta O-18-NO3 (-) values in this study indicate that the nitrification process is one important source for the variability of nitrate in Chaohu Lake. This study can provide useful scientific guidance for the remediation and management of Chaohu Lake.

KeywordEutrophication Nitrate Source Distribution Dual Isotopes Chaohu Lake
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s12665-015-4170-8
WOS KeywordHeavy-metals ; Ground-water ; Surface Sediments ; Taihu Lake ; River ; O-18 ; N-15 ; Denitrification ; Aquifer ; Identification
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000356871500066
PublisherSPRINGER
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9294
Collection黄土与第四纪地质国家重点实验室(2010~)
Corresponding AuthorLiu, Guijian
Affiliation1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Xi, Shanshan,Liu, Guijian,Zhou, Chuncai,et al. Assessment of the sources of nitrate in the Chaohu Lake, China, using a nitrogen and oxygen isotopic approach[J]. ENVIRONMENTAL EARTH SCIENCES,2015,74(2):1647-1655.
APA Xi, Shanshan,Liu, Guijian,Zhou, Chuncai,Wu, Lei,&Liu, Rongqiong.(2015).Assessment of the sources of nitrate in the Chaohu Lake, China, using a nitrogen and oxygen isotopic approach.ENVIRONMENTAL EARTH SCIENCES,74(2),1647-1655.
MLA Xi, Shanshan,et al."Assessment of the sources of nitrate in the Chaohu Lake, China, using a nitrogen and oxygen isotopic approach".ENVIRONMENTAL EARTH SCIENCES 74.2(2015):1647-1655.
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