Water quality evaluation and characterization of its spatio-temporal variability in the Western Route of South-to-North Water Diversion Project in China
文献类型：期刊论文
| 作者 | Zhao, Anbang3,4; Li, Wenyu4,5; Xie, Jun4,5; Cao, Juan2; Wu, Jinhui1; Tang, Zhiqing3; Liu, Kai4,5; Wang, Ming4,5 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 181页码:114439 |
| 关键词 | WR-SNWDP Water quality evaluation Water Quality Index Spatio-temporal variability Driving mechanism |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2025.114439 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | As a critical national strategy for water resource allocation currently under planning in China, the implementation of the Western Route of South-to-North Water Diversion Project (WR-SNWDP) prioritize water quality safety as a core consideration. Given the vast areas potentially affected by this project and pronounced spatiotemporal variability in natural and cultural environment, it is imperative to elucidate the evolutionary dynamics of water quality and their driving mechanisms within this area. However, comprehensive water quality assessments for critical regions crosses the two largest river basins of China remain scarce. In this study, we utilized continuous water quality data from 245 national monitoring stations to conduct a multi-faceted assessment of the water quality across the source area (R1) - downstream of the source area (R2) - transfer area (R3) - intake area (R4) of the WR-SNWDP. Spatio-temporal evolution of water quality and their driving mechanisms was then evaluated by integrating the multiple statistical analysis methods and Structural Equation Modeling (SEM). Results indicate that the overall water quality in the study area ranged from good to excellent, with a gradual improvement trend during the study period. It exhibited significant annual cyclical variations temporally, primarily driven by precipitation and temperature. Spatially, it was significantly influenced by anthropogenic activities, with moderate water quality predominantly distributed in R4 and excellent water quality concentrated in R2. Total nitrogen (TN) was the primary pollutant in the study area, with concentrations exceeding 2.0 mg/L in all regions except R1. Water quality in each sub-region (R1-R4) was most significantly influenced by TN, Chemical Oxygen Demand by Potassium Permanganate (CODMn), CODMn, and total phosphorus (TP), respectively. These indicators were identified as key parameters for targeted monitoring. The weighted WQImin model outperform the unweighted version with both models exhibit coefficient of determination exceeding 0.9. These findings contribute to a deep understanding of spatiotemporal water quality pattern and its driving mechanism within the WR-SNWDP, providing evidence-based guidance for optimizing operational plans and adaptive ecological management strategies. |
| URL标识 | 查看原文 |
| WOS关键词 | CORDOBA CITY ARGENTINA ; 3 GORGES RESERVOIR ; YANGTZE-RIVER ; INDEXES ; TEMPERATURE ; NUTRIENTS ; VERIFY ; IMPACT ; BASIN |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001621915200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217653]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Xie, Jun |
| 作者单位 | 1.China Geol Survey, China Inst Geoenvironm Monitoring, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China; 3.Second Surveying & Mapping Inst Hunan Prov, Changsha 410000, Peoples R China; 4.Beijing Normal Univ, Sch Natl Safety & Emergency Management, Beijing 100875, Peoples R China; 5.Beijing Normal Univ Zhuhai, Joint Int Res Lab Catastrophe Simulat & Syst Risk, Zhuhai 519087, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhao, Anbang,Li, Wenyu,Xie, Jun,et al. Water quality evaluation and characterization of its spatio-temporal variability in the Western Route of South-to-North Water Diversion Project in China[J]. ECOLOGICAL INDICATORS,2025,181:114439. |
| APA | Zhao, Anbang.,Li, Wenyu.,Xie, Jun.,Cao, Juan.,Wu, Jinhui.,...&Wang, Ming.(2025).Water quality evaluation and characterization of its spatio-temporal variability in the Western Route of South-to-North Water Diversion Project in China.ECOLOGICAL INDICATORS,181,114439. |
| MLA | Zhao, Anbang,et al."Water quality evaluation and characterization of its spatio-temporal variability in the Western Route of South-to-North Water Diversion Project in China".ECOLOGICAL INDICATORS 181(2025):114439. |
入库方式： OAI收割
来源：地理科学与资源研究所
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