Research on the Vulnerability of the Community to Flood: A Case Study at the Downstream of Gianh River, Quang Binh Province
Main Article Content
Abstract
Flood is a frequent natural disaster which has a negative impact on the socio-economic activities of the community in the lower Gianh river area - one of the most vulnerability areas under the flood in the North Central Region, Vietnam. The aim of this paper is to assess the risk of flooding in the study area as well as point out the factors that increase the vulnerability of the local community. The study applies UNESCO-IHE vulnerability approach, combining the flood risk assessment method by MIKE FLOOD model and sociological investigation, with 90 household questionnaires (selected randomly and door-to-door interview). The main results include flood risk level maps (by analyzing inundation depth and flood flow velocities); data on community resilience to flood (resilience capacity and local people's perceptions on flood risks). These results are the basis for not only raising awareness about flood risks but also propose non-structural flood protection solutions for managers and local communities in the research areas.
Keywords:
Vulnerability, flood, the downstream of Gianh River.
References
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[2] Center of Research on the Epidemiology of Disasters CRED – UCLouvain, USAID, Nature Disasters 2019.
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[4] Prime Minister, The National Strategy on Climate Change, No 2139/QD-TTg, Released on 05th December 2011, Available at: http://vanban.chinhphu.vn/ (assessed on: April 26th, 2021) (in Vietnamese).
[5] C. T. Van, N. T. Son, Research Setting Basic Methods of Flood Risk Assessment in the Mekong Delta, VNU Journal of Science: Earth and Environmental Sciences, Vol. 32, No. 3S, 2016, pp. 264-270,
https://doi.org/10.25073/2588-1094/vnuees.4085 (in Vietnamese).
[6] A. E. Kissi, G. A. Abbey, K. Agboka, A. Egbendewe, Quantitative Assessment of Vulnerability to Flood Hazards in Downstream Area of Mono Basin, South-Eastern Togo: Yoto District, Journal of Geographic Information System, Vol. 7, No. 6, 2015, pp. 607-619, http://dx.doi.org/10.4236/jgis.2015.76049.
[7] A. R. Hamidi, J. Wang, S. Guo, Z. Zeng, Flood Vulnerability Assessment Using MOVE Framework: A Case Study of the Northern Part of District Peshawar, Pakistan, Natural Hazards, Vol. 101, No. 2, 2020, pp. 385-408, https://doi.org/10.1007/s11069-020-03878-0.
[8] M. E. Pamela, N. Tuyen, L. Hue, V. Huong, Flood Vulnerability Among Rural Households in the Red River Delta of Vietnam: Implications for Future Climate Change Risk and Adaptation, Natural Hazards, Vol. 86, No. 1, 2017, pp. 465-492, https://doi.org/10.1007/s11069-016-2701-6.
[9] The People Committee of Quang Binh Province, The Situation of Socio-Economic Implementation in 2020, the Report No. 294/BC-UBND, Released on 26 November 2020, Available at: https://cucthongke.quangbinh.gov.vn/ (assessed on : April 26th, 2021) (in Vietnamese).
[10] UNESCO-IHE, Flood Vulnerability Indices, http://unihefvi.free.fr/indicators.php/ (accessed on: July 2nd, 2021).
[11] A. R. Irfan, K. R. Jayant, Multidimensional Model for Vulnerability Assessment of Urban Flooding: An Empirical Study in Pakistan, International Journal of Disaster Rick Science Vol. 9, No. 3, 2018, pp.359-375, https://doi.org/10.1007/s13753-018-0179-4.
[12] S. F. Balica, Development and Application of Flood Vulnerability Indices for Various Spatial Scales. UNESCO-IHE Institute for Water Education, 2007, pp. 4, https://ihedelftrepository.contentdm.oclc.org/digital/collection/masters2/id/43243/ (accessed on: July 2nd, 2021).
[13] Institute of Water Resources Planning, Reviewing, Updating and Supplementing the Planning for Development and Protection of Water Resources of Gianh River and Its Surroundings, Summary Report of the Project Planning for Development and Protection of Water Resources in the south of Gianh River – north of Nhat Le River in 2005 (in Vietnamese).
[14] N. V. Thang, V. V. Thang, Study on Current and Future Characteristics, Trends of Rainfall in Quang Binh Province, Vietnam Journal of Hydrometeorology, Vol. 5, 2017, pp. 14-22, http://tapchikttv.vn/article/289 (in Vietnamese).
[15] National Centre for Hydro-Meteorological Forecasting, Summary Report of the Project
Research and Development Technology Forecasting and Warning for Flood of Main Rivers in Quang Binh, Quang Tri, 2015.
[16] N. Y. Nguyen, I. Yutaka, I. Hiroshi, Establishing Flood Damage Functions for Agricultural Crops Using Estimated Inundation Depth and Flood Disaster Statistics in Data-Scarce Regions, Hydrological Research Letters, Vol. 11, No. 1, 2017, pp. 12-18, https://doi.org/10.3178/hrl.11.12.
[17] IMHEN & UNDP, Speical Report of Vietnam on Risk Management of Natural Disasters and Extreme Weather Events for Promoting the Resilience on Climate Change, Vietnam Publishing House of Natural Resources, Environment and Cartography, Hanoi, 2015 (in Vietnamese).
[18] Steering Committee of Flood and Storm Control, Search and Rescue – the People Committee of Quang Binh Province, Report on Assessment of Causes of Heavy Rain and Prolonged Flooding in March 2011
(in Vietnamese).
[19] N. T. Son, N. C. Tuan, N. Q. Hung, P. N, Thang, Mapping Vulnerable Properties and Solutions Limited Flood Damage on the Ben Hai – Thach Han River Basins, VNU Journal of Science: Earth and Environmental Sciences, Vol. 32, No. 3S, 2016, pp. 175-183, https://js.vnu.edu.vn/EES/article/view/3661 (in Vietnamese).
[20] D. D. Kha, T. N. Anh, N. T. Son, Flood Vulnerability Assessment of Downstream in Thach Han River Basin, Quang Tri Province, The Second International MAHASRI/HyARC Workshop, Nha Trang, Vietnam, 2011 (in Vietnamese).