Distribution of Pollutants in Nandu River Estuary in Different Environments
In view of the frequent tropical storm surge in Nandu River Estuary in recent years,the increasing population in Haikou City each year,severe pollution emissions,and increasing upstream water use year by year,this paper studies the pollutant distribution in Nandu River Estuary under the storm surge...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2022-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.04.008 |
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| author | FANG Mingyi SHI Haoran HAILAI Yibo LI Haisheng MING Rui |
| author_facet | FANG Mingyi SHI Haoran HAILAI Yibo LI Haisheng MING Rui |
| author_sort | FANG Mingyi |
| collection | DOAJ |
| description | In view of the frequent tropical storm surge in Nandu River Estuary in recent years,the increasing population in Haikou City each year,severe pollution emissions,and increasing upstream water use year by year,this paper studies the pollutant distribution in Nandu River Estuary under the storm surge and reduction of upstream water inflow on the basis of the hydrodynamic-water quality model.In addition,the changes of pollutants under different environments are analyzed.The results demonstrate that pollutants are mainly distributed on the left bank of the river and are mainly in striped shape due to the topography of the river.When the upstream flow is reduced by 20%,the effect of the tidal current is more significant,and pollutants are greatly affected by convection;the pollution zone becomes narrower,and the diffusion distance is the farthest.When the downstream tidal level is raised by 0.4 m,the interaction between the upstream inflow and tidal current is obvious;the flow rate decreases,and the pollutant retention is serious.In this case,pollutants mainly diffuse to the upstream by diffusion.Therefore,the upstream water resources should be effectively regulated and used,and the water surrounding the sewage outlet should be monitored with more efforts to provide a reference for the water environment management of the estuary section of Haikou City in the future. |
| format | Article |
| id | doaj-art-10eb16327447436aa97a8c3eb5e2090f |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-10eb16327447436aa97a8c3eb5e2090f2025-01-15T02:27:35ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352022-01-014347645386Distribution of Pollutants in Nandu River Estuary in Different EnvironmentsFANG MingyiSHI HaoranHAILAI YiboLI HaishengMING RuiIn view of the frequent tropical storm surge in Nandu River Estuary in recent years,the increasing population in Haikou City each year,severe pollution emissions,and increasing upstream water use year by year,this paper studies the pollutant distribution in Nandu River Estuary under the storm surge and reduction of upstream water inflow on the basis of the hydrodynamic-water quality model.In addition,the changes of pollutants under different environments are analyzed.The results demonstrate that pollutants are mainly distributed on the left bank of the river and are mainly in striped shape due to the topography of the river.When the upstream flow is reduced by 20%,the effect of the tidal current is more significant,and pollutants are greatly affected by convection;the pollution zone becomes narrower,and the diffusion distance is the farthest.When the downstream tidal level is raised by 0.4 m,the interaction between the upstream inflow and tidal current is obvious;the flow rate decreases,and the pollutant retention is serious.In this case,pollutants mainly diffuse to the upstream by diffusion.Therefore,the upstream water resources should be effectively regulated and used,and the water surrounding the sewage outlet should be monitored with more efforts to provide a reference for the water environment management of the estuary section of Haikou City in the future.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.04.008storm surgenumerical simulationconvective diffusionNandu River Estuary |
| spellingShingle | FANG Mingyi SHI Haoran HAILAI Yibo LI Haisheng MING Rui Distribution of Pollutants in Nandu River Estuary in Different Environments Renmin Zhujiang storm surge numerical simulation convective diffusion Nandu River Estuary |
| title | Distribution of Pollutants in Nandu River Estuary in Different Environments |
| title_full | Distribution of Pollutants in Nandu River Estuary in Different Environments |
| title_fullStr | Distribution of Pollutants in Nandu River Estuary in Different Environments |
| title_full_unstemmed | Distribution of Pollutants in Nandu River Estuary in Different Environments |
| title_short | Distribution of Pollutants in Nandu River Estuary in Different Environments |
| title_sort | distribution of pollutants in nandu river estuary in different environments |
| topic | storm surge numerical simulation convective diffusion Nandu River Estuary |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.04.008 |
| work_keys_str_mv | AT fangmingyi distributionofpollutantsinnanduriverestuaryindifferentenvironments AT shihaoran distributionofpollutantsinnanduriverestuaryindifferentenvironments AT hailaiyibo distributionofpollutantsinnanduriverestuaryindifferentenvironments AT lihaisheng distributionofpollutantsinnanduriverestuaryindifferentenvironments AT mingrui distributionofpollutantsinnanduriverestuaryindifferentenvironments |