Knowledge Management System Of Qinghai Institute of Salt Lakes,CAS
| Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model | |
Wen, Xiaohu; Feng, Qi; Lu, Jian; Wu, Jun ; Wu, Min; Guo, Xiaoyan
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| 第一作者 | Wen, Xiaohu |
| 2018 | |
| 发表期刊 | HUMAN AND ECOLOGICAL RISK ASSESSMENT
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| ISSN | 1080-7039 |
| 卷号 | 24期号:4页码:1043-1057 |
| 关键词 | Groundwater Nitrate Pollution Source Identification Dual Nitrate Isotopes Hierarchical Cluster Analysis Stable Isotope Analysis In r Model |
| 摘要 | Due to the intensive and complicated human activities, the identification of nitrate pollution source of coastal aquifer is usually a challenge. This study firstly adopted stable isotope technique and stable isotope analysis in R (SIAR) model to identify the nitrate sources and contribution proportions of different sources in typical coastal groundwater of northern China. The results showed that about 91.5% of the groundwater samples illustrated significantly high nitrate concentrations exceeding the maximum WHO drinking water standard (50mg/l), reflecting the high risk of groundwater nitrate pollution in the coastal area. A total of 57 sampling sites were classified into three groups according to hierarchical cluster analysis (HCA). The N-15-NO3- and O-18-NO3- values of groundwater samples from Group C (including nine samples) were much higher than those from Group A (including 40 samples) and Group B (including 8 samples). SIAR results showed that NH4+ fertilizer was the dominant nitrate source for groundwater samples of Groups A and B while manure and sewage (M&S) served as dominant source for Group C. This study provided essential information on the high risk and pollution sources of coastal groundwater nitrate of northern China. |
| DOI | 10.1080/10807039.2017.1405722 |
| 语种 | 英语 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/6433 |
| 专题 | 青海盐湖研究所知识仓储 盐湖地质与环境实验室 |
| 推荐引用方式 GB/T 7714 | Wen, Xiaohu,Feng, Qi,Lu, Jian,et al. Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model[J]. HUMAN AND ECOLOGICAL RISK ASSESSMENT,2018,24(4):1043-1057. |
| APA | Wen, Xiaohu,Feng, Qi,Lu, Jian,Wu, Jun,Wu, Min,&Guo, Xiaoyan.(2018).Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model.HUMAN AND ECOLOGICAL RISK ASSESSMENT,24(4),1043-1057. |
| MLA | Wen, Xiaohu,et al."Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model".HUMAN AND ECOLOGICAL RISK ASSESSMENT 24.4(2018):1043-1057. |
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| Risk assessment and （4361KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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