A holistic assessment of spatiotemporal variation, driving factors, and risks influencing river water quality in the northeastern Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Wang, Xueping1,2; Liu, Xiaojie1; Wang, Lingqing1,2; Yang, Jun1; Wan, Xiaoming1; Liang, Tao1,2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2022-12-10 |
| 卷号 | 851页码:12 |
| 关键词 | Water quality index Driving factor Risk assessment Spatial-temporal patterns Qinghai-Tibet Plateau |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2022.157942 |
| 通讯作者 | Wang, Lingqing(wanglq@igsnrr.ac.cn) |
| 英文摘要 | The Qinghai-Tibet Plateau (QTP) is the source for many of the most important rivers in Asia. It is also an essential eco-logical barrier in China and has the characteristic of regional water conservation. Given this importance, we analyzed the spatiotemporal distribution patterns and trends of 10 water quality parameters. These measurements were taken monthly from 67 monitoring stations in the northeastern QTP from 2015 to 2019. To evaluate water quality trends, major factors influencing water quality, and water quality risks, we used a series of analytical approaches including Mann-Kendall test, Boruta algorithm, and interval fuzzy number-based set-pair analysis (IFN-SPA). The results re-vealed that almost all water monitoring stations in the northeastern QTP were alkaline. From 2015 to 2019, the water temperature and dissolved oxygen of most monitoring stations were significantly reduced. Chemical oxygen de-mand, permanganate index, five-day biochemical oxygen demand, total phosphorus, and fluoride all showed a down-ward trend across this same time frame. The annual average total nitrogen (TN) concentration fluctuation did not significantly decrease across the measured time frame. Water quality index (WQI-DET) indicated bad or poor water quality in the study area; however, water quality index without TN (WQI-DET ') reversed the water quality value. The difference between the two indexes suggested that TN was a significant parameter affecting river water quality in the northeastern QTP. Both Spearman correlation and Boruta algorithm show that elevation, urban land, cropland, temperature, and precipitation influence the overall water quality status in the northeastern QTP. The results showed that between 2015 and 2019, most rivers monitored had a relatively low risk of degradation in water quality. This study provides a new perspective on river water quality management, pollutant control, and risk assessment in an area like the QTP that has sensitive and fragile ecology. |
| WOS关键词 | CLIMATE-CHANGE IMPACTS ; LAND-USE ; MANN-KENDALL ; REGION ; CATCHMENT ; DYNAMICS ; BLOOMS ; COVER ; CHINA ; LAKES |
| 资助项目 | National Natural Science Foundation of China[42173064] ; National Science & Technology Infrastructure of China |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000861087300014 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Science & Technology Infrastructure of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/184899]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Lingqing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xueping,Liu, Xiaojie,Wang, Lingqing,et al. A holistic assessment of spatiotemporal variation, driving factors, and risks influencing river water quality in the northeastern Qinghai-Tibet Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,851:12. |
| APA | Wang, Xueping,Liu, Xiaojie,Wang, Lingqing,Yang, Jun,Wan, Xiaoming,&Liang, Tao.(2022).A holistic assessment of spatiotemporal variation, driving factors, and risks influencing river water quality in the northeastern Qinghai-Tibet Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,851,12. |
| MLA | Wang, Xueping,et al."A holistic assessment of spatiotemporal variation, driving factors, and risks influencing river water quality in the northeastern Qinghai-Tibet Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 851(2022):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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