Flood-related risks in Ho Chi Minh City and ways of mitigation

JOURNAL OF HYDROLOGY

卷:573

Article

Vachaud, Georges¹  Quertamp, Fanny²  Phan Thi San Ha³  Tran Ngoc Tien Dung³  Nguyen Thong⁴  Luu Xuan Loc⁴  Nguyen Anh Tuan⁵  Gratiot, Nicolas^1,3 

[1] Univ Grenoble Alpes, CNRS, IRD, ICE, F-38000 Grenoble, France

[2] Ctr Propect & Etud Urbaines, PADDI, Hcmc, Vietnam

[3] Ho Chi Minh City Univ Technol, CARE, Hcmc, Vietnam

[4] Ho Chi Minh City Univ Technol, Fac Civil Engnrg, Ho Chi Minh City, Vietnam

[5] Architectural Res Ctr, Hcmc, Vietnam

关键词: Adaptation to urban inundation;    Tropical rain;    Wave set-up by tides;    Tsunamis;    Dam failure;    Climate change;    Subsidence;    Urban planning strategy;   

DOI  :  10.1016/j.jhydrol.2018.02.044

来源: Elsevier

【 摘 要 】

With an ever-growing population of around 10 million inhabitants (officially 7.9 in 2013), Ho Chi Minh City (HCMC) is set to become one of the largest cities in South East Asia and already occupies a major economic role in the area. To accommodate the increasing population, the megacity now stretches out in an urban continuum covering more than 800 square kilometers and is currently growing at a rate of 3.2% per year. If the neighboring provinces around HCMC are included, the total population reaches nearly 18 million people. This paper attempts to describe the interplay between HCMC and flood-related risks and offer some guidelines to deal with inundations. The potential risks of flooding by rain, tsunami and/or dam failure upstream of the city are evaluated and contextualized within the perspective of climate and human induced environmental changes. The region is highly vulnerable to the combined effects of subsidence and rising sea levels and has already led to serious flooding that may extend spatially before the end of the century. We propose possible preventative solutions to urban flooding using a multi-pronged approach to issues regarding urban development and suggest a redevelopment strategy for major infrastructure projects. (C) 2018 Elsevier B.V. All rights reserved.

【 授权许可】

Free