Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats
Anthropogenic development can strongly influence natural river processes, leading to environmental changes that negatively affect important habitats and biodiversity and consequently reduce economically important natural resources. This study investigated the effects of salinity intrusion on the hab...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-04-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/16/7/1035 |
| _version_ | 1797211882228023296 |
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| author | Chunggil Jung Gayeong Lee Jongyoon Park |
| author_facet | Chunggil Jung Gayeong Lee Jongyoon Park |
| author_sort | Chunggil Jung |
| collection | DOAJ |
| description | Anthropogenic development can strongly influence natural river processes, leading to environmental changes that negatively affect important habitats and biodiversity and consequently reduce economically important natural resources. This study investigated the effects of salinity intrusion on the habitat of the clam <i>Corbicula japonica</i> in the Seomjin River estuarine zone. We employed the Environmental Fluid Dynamics Code (EFDC) model, which incorporates topographic data and hydrological changes, to simulate salinity. Two salinity measurement facilities were installed in Seomjin River estuarine and operated to optimize the EFDC model. The results show that reduced flow rates due to intake have a negligible impact on the increased salinity. Maintaining optimal salinity (15–20 psu) during neap tides at the Seomjin River Bridge requires constant high flow rates, which poses significant challenges. Saltwater stratification is identified as the primary cause of pronounced salinity stratification, particularly during neap tides. Addressing this issue through river discharge and intake facility operation is challenging. Structural measures, including riverbed restoration and underwater barriers, are recommended to improve resistance to seawater intrusion. Future research should aim to develop scenarios to reduce salinity, quantify the reduction efficiency, and propose region-specific measures. |
| first_indexed | 2024-04-24T10:33:33Z |
| format | Article |
| id | doaj.art-6b170b883a8348e78a1a3b722d2a4640 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-04-24T10:33:33Z |
| publishDate | 2024-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-6b170b883a8348e78a1a3b722d2a46402024-04-12T13:27:15ZengMDPI AGWater2073-44412024-04-01167103510.3390/w16071035Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula HabitatsChunggil Jung0Gayeong Lee1Jongyoon Park2Forecast and Control Division, Han River Flood Control Office, 328 Dongjakdaero Seocho-gu, Seoul 06501, Republic of KoreaResearch Center for Water, ECOLABS 50, Daehak-ro, Yeosu-si 59626, Republic of KoreaEnvironmental Assessment Group, Korea Environment Institute, Sejong 30147, Republic of KoreaAnthropogenic development can strongly influence natural river processes, leading to environmental changes that negatively affect important habitats and biodiversity and consequently reduce economically important natural resources. This study investigated the effects of salinity intrusion on the habitat of the clam <i>Corbicula japonica</i> in the Seomjin River estuarine zone. We employed the Environmental Fluid Dynamics Code (EFDC) model, which incorporates topographic data and hydrological changes, to simulate salinity. Two salinity measurement facilities were installed in Seomjin River estuarine and operated to optimize the EFDC model. The results show that reduced flow rates due to intake have a negligible impact on the increased salinity. Maintaining optimal salinity (15–20 psu) during neap tides at the Seomjin River Bridge requires constant high flow rates, which poses significant challenges. Saltwater stratification is identified as the primary cause of pronounced salinity stratification, particularly during neap tides. Addressing this issue through river discharge and intake facility operation is challenging. Structural measures, including riverbed restoration and underwater barriers, are recommended to improve resistance to seawater intrusion. Future research should aim to develop scenarios to reduce salinity, quantify the reduction efficiency, and propose region-specific measures.https://www.mdpi.com/2073-4441/16/7/1035Seomjin Riversalinity intrusionEFDCsaltwater stratificationestuarine environmental challengescorbicula |
| spellingShingle | Chunggil Jung Gayeong Lee Jongyoon Park Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats Water Seomjin River salinity intrusion EFDC saltwater stratification estuarine environmental challenges corbicula |
| title | Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats |
| title_full | Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats |
| title_fullStr | Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats |
| title_full_unstemmed | Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats |
| title_short | Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats |
| title_sort | cause analysis of salinity intrusion by environmental changes considering water intake and sand mining on seomjin river estuary using model for maintaining corbicula habitats |
| topic | Seomjin River salinity intrusion EFDC saltwater stratification estuarine environmental challenges corbicula |
| url | https://www.mdpi.com/2073-4441/16/7/1035 |
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