Heavy Metals Enrichment Associated with Water-Level Fluctuations in the Riparian Soils of the Xiaowan Reservoir, Lancang River
Bibliographic Data
| ID | 15475387 |
|---|---|
| Authors | Ronghua Zhong (0000-0002-0570-2998, Yunnan University, corresponding author), Yun Zhang (0000-0002-0960-7445, Yunnan University), Xingwu Duan (0000-0002-1719-6674, Yunnan University), Fei Wang (0000-0003-0860-6317, Chinese Academy of Sciences), Raheel Anjum (0000-0003-0752-0415, Abdul Wali Khan University Mardan) |
| Year | 2022 |
| Volume | 19 |
| Issue | 19 |
| Pages | 12902-12902 |
| Publication date | 2022-10-08 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph191912902 |
| PMID | 36232199 |
| OpenAlex | W4303699441 |
| Language | EN |
| References cited | 52 |
The cascade hydropower development in the Lancang River has significantly modified the hydrologic regime and is consequently responsible for many local environmental changes. The influence of the altered hydrological regime on heavy metals accumulation in the soils of the riparian zone was evaluated for the Xiaowan Reservoir (XWR). Specifically, this study focused on investigating the trace metals As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn and their concentrations in the riparian soils. Furthermore, this research aimed to examine the contamination levels of heavy metals by employing the geoaccumulation index ( I geo ) and the ecological risk index ( RI ), respectively. Additionally, the relationship between heavy metals and water level fluctuations as caused by the dam operation was explored. The results showed that heavy metals deposits occurred in relatively low levels in the riparian soils of XWR, even though several of these metals were revealed to occur in higher concentrations than the local background value. The I geo assessment indicated that the riparian soils exhibited slight pollution by Hg at the Zhujie wharf (ZJW) and Cr at the transect of the Heihui River (HHR), and moderate contamination by As at ZJW. Moreover, the RI revealed that As in riparian soils is moderately hazardous while Hg poses a high risk at ZJW. The polluted water and sediments from upstream and upland of the riparian zone may be contributing to the changed concentrations of heavy metal in the riparian soils. The present study inferred that the WLFs due to reservoir impoundment play a vital role in the accumulation of trace metals in the riparian zone. However, more exhaustive investigations are necessary for verification
Contamination · Geotechnical engineering · Heavy metals · Hydrology (agriculture · Riparian zone · Soil water · Chemistry · Environmental Science · Groundwater and Watershed Analysis · Heavy metals in environment · Soil erosion and sediment transport · Ecology · Environmental Chemistry · Geology · Pollution · Soil Science
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| Citation velocity | historical |
|---|---|
| Highly cited | No |