A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Impact of Cascade Large Deep Reservoir on the Migration and Deposition of Cadmium in Lancang River
Metal pollution is a global environmental problem. In order to understand the effects of the cascade hydropower development on Cd in reservoir sediments, this study investigated the migration and deposition mechanisms of Cd in reservoir sediments by using the film diffusion gradient technique (DGT) for the cascade large deep reservoirs of the Lancang River (LCR), Nuozhadu (NZD) and Xiaowan (XW). The results show that: (1) Strong correlations amongst the deposition processes of Cd, Mn and S were found in the sediments of the NZD reservoir; weak correlations between the deposition processes of Cd and Mn were found in the sediments of the XW reservoir. (2) Part of labile Cd in the pore water of the NZD reservoir was supplemented by silt and sand, and another part was inherent in the pore water; most of labile Cd in the pore water of the XW reservoir was inherent in the pore water, and minimal replenishment of sediment was noted. (3) Mn is the main factor controlling the migration of Cd in the NZD reservoir. This paper provides an effective resource for understanding the migration and deposition of Cd in the sediments of large deep reservoirs along the LCR.
The Impact of Cascade Large Deep Reservoir on the Migration and Deposition of Cadmium in Lancang River
Metal pollution is a global environmental problem. In order to understand the effects of the cascade hydropower development on Cd in reservoir sediments, this study investigated the migration and deposition mechanisms of Cd in reservoir sediments by using the film diffusion gradient technique (DGT) for the cascade large deep reservoirs of the Lancang River (LCR), Nuozhadu (NZD) and Xiaowan (XW). The results show that: (1) Strong correlations amongst the deposition processes of Cd, Mn and S were found in the sediments of the NZD reservoir; weak correlations between the deposition processes of Cd and Mn were found in the sediments of the XW reservoir. (2) Part of labile Cd in the pore water of the NZD reservoir was supplemented by silt and sand, and another part was inherent in the pore water; most of labile Cd in the pore water of the XW reservoir was inherent in the pore water, and minimal replenishment of sediment was noted. (3) Mn is the main factor controlling the migration of Cd in the NZD reservoir. This paper provides an effective resource for understanding the migration and deposition of Cd in the sediments of large deep reservoirs along the LCR.
The Impact of Cascade Large Deep Reservoir on the Migration and Deposition of Cadmium in Lancang River
Yao Cheng (author) / Chenchen Chen (author) / Mingming Hu (author) / Yuchun Wang (author)
2021
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
Soil Disintegration Characteristics Around Huangdeng Hydropower Station Reservoir on Lancang River
| DOAJ | 2023
Analysis on the Characteristics of Bed Materials in the Jinghong Reservoir on the Lancang River
| DOAJ | 2021
Regional hydropolitics of the transboundary impacts of the Lancang cascade dams
| Online Contents | 2011
Regulation of Xiaoganlanba Sharp Shoal in the Lancang River
| British Library Conference Proceedings | 2004
Regional hydropolitics of the transboundary impacts of the Lancang cascade dams
| Taylor & Francis Verlag | 2011