Past and future river bank trend assessment of lower Cagayan River, Philippines.
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| Title: | Past and future river bank trend assessment of lower Cagayan River, Philippines. |
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| Authors: | Felipe, Alvin John B.1 (AUTHOR) alvinjohn316felipe@gmail.com, Alejo, Lanie A.1,2 (AUTHOR), Padre, Rafael J.1 (AUTHOR), Bareng, Jeoffrey Lloyd R.1,2 (AUTHOR) |
| Source: | Environment, Development & Sustainability. Feb2026, Vol. 28 Issue 2, p3363-3398. 36p. |
| Subject Terms: | *Stream restoration, *Shoreline monitoring, *Riparian areas, Geographic information systems, Remote sensing, Stream channelization, Soil granularity |
| Geographic Terms: | Philippines |
| Abstract: | In floodplain communities, river bank erosion is a catastrophic environmental hazard that can result in human migration and other consequences that could result in social, economic, and even health instability. Additionally, it may worsen the effects of flooding and related calamities. This study was conducted to investigate the spatial and temporal river bank changes of the Lower Cagayan River by assessing the current variability of the river channel in terms of erosion and accretion from 1991 to 2021 using Geographic Information System and Remote Sensing Techniques, in developing policy recommendations to address the adverse impacts of river erosion and accretion. It also utilizes the functionalities of the Digital Shoreline Analysis System in forecasting the future bank line positions for the next 10 and 20 years. Similarly, DSAS analysis revealed that the Left Bank has the highest erosion and accretion rate compared to the Right Bank. The River Bank Line Forecast estimated about-735.41 ha. Human settlements and infrastructure to be eroded in the next 20 years with corresponding uncertainty. Soil particle size distribution analysis indicates that the river banks are susceptible to erosion and have more than 95% of sand and silt content, and a very minimal portion of clay. The general findings of this study can serve as a basis for formulating policy recommendations and frameworks for more comprehensive riverbank restoration and rehabilitation projects and programs that integrate transdisciplinary principles of stream and floodplain restoration. [ABSTRACT FROM AUTHOR] |
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| Database: | GreenFILE |
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| Abstract: | In floodplain communities, river bank erosion is a catastrophic environmental hazard that can result in human migration and other consequences that could result in social, economic, and even health instability. Additionally, it may worsen the effects of flooding and related calamities. This study was conducted to investigate the spatial and temporal river bank changes of the Lower Cagayan River by assessing the current variability of the river channel in terms of erosion and accretion from 1991 to 2021 using Geographic Information System and Remote Sensing Techniques, in developing policy recommendations to address the adverse impacts of river erosion and accretion. It also utilizes the functionalities of the Digital Shoreline Analysis System in forecasting the future bank line positions for the next 10 and 20 years. Similarly, DSAS analysis revealed that the Left Bank has the highest erosion and accretion rate compared to the Right Bank. The River Bank Line Forecast estimated about-735.41 ha. Human settlements and infrastructure to be eroded in the next 20 years with corresponding uncertainty. Soil particle size distribution analysis indicates that the river banks are susceptible to erosion and have more than 95% of sand and silt content, and a very minimal portion of clay. The general findings of this study can serve as a basis for formulating policy recommendations and frameworks for more comprehensive riverbank restoration and rehabilitation projects and programs that integrate transdisciplinary principles of stream and floodplain restoration. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 1387585X |
| DOI: | 10.1007/s10668-024-05113-3 |
