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Coastal Ecosystem Influence on Phytoremediation of Water Quality: Case Study of the Bangpakong River Estuary |
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| รหัสดีโอไอ | |
| Creator | Suchanad Boonyachai |
| Title | Coastal Ecosystem Influence on Phytoremediation of Water Quality: Case Study of the Bangpakong River Estuary |
| Contributor | Suchanad Boonyachai |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2569 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 19 |
| Journal No. | 1 |
| Page no. | 150-156 |
| Keyword | Coastal Ecosystem, Estuarine Ecosystems, Phytoremediation, Water Quality Index (WQI), Normalized Difference Vegetation Index (NDVI) |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | The Bangpakong River Estuary in Thailand is a coastal ecosystem that provides vital services, including natural phytoremediation processes supporting water quality. However, ongoing anthropogenic pressures have disrupted ecological dynamics, triggered pollution, and accelerated degradation. This study investigates how coastal ecosystems influence water quality through phytoremediation across upstream to downstream zones. Water sampling was conducted at nine locations over three time periods, testing Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Total Coliform Bacteria (TCB), Fecal Coliform Bacteria (FCB), and Ammonia (NH₃) using the Water Quality Index (WQI) from Thailand’s Pollution Control Department. Land use and Normalized Difference Vegetation Index (NDVI) data from satellite imagery were used to classify land into ecosystem service areas, anthropogenic farming, and urban development. GIS shapefiles from the Land Development Department supported interpretation of land use change and vegetation cover. Most sampling sites fell into the ‘poor’ (31–61/100) to ‘very poor’ (0–30/100) WQI range, primarily due to serious concerns with BOD and NH₃ levels, which were strongly associated with upstream flow controls and land conversion. In contrast, areas with greater natural ecosystem cover showed improved phytoremediation performance. Findings support integrating Nature-Based Solutions (NbS) into estuarine governance by prioritizing natural rewilding, hydrological recovery, and ecosystem-led purification, positioning coastal ecosystems as core elements of regional planning in their dynamic and functional state. |
