Knowledge Management System Of Institute of Earth Environment, CAS
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 | |
发表期刊 | ENVIRONMENTAL EARTH SCIENCES |
ISSN | 1866-6280 |
卷号 | 74期号:2页码:1647-1655 |
文章类型 | Article |
摘要 | 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. |
关键词 | Eutrophication Nitrate Source Distribution Dual Isotopes Chaohu Lake |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
DOI | 10.1007/s12665-015-4170-8 |
关键词[WOS] | Heavy-metals ; Ground-water ; Surface Sediments ; Taihu Lake ; River ; O-18 ; N-15 ; Denitrification ; Aquifer ; Identification |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
WOS记录号 | WOS:000356871500066 |
出版者 | SPRINGER |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9294 |
专题 | 黄土与第四纪地质国家重点实验室(2010~) |
通讯作者 | Liu, Guijian |
作者单位 | 1.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 |
推荐引用方式 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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