Effectiveness of small- and large-scale Nature-Based Solutions for flood mitigation: The case of Ayutthaya, Thailand

Vojinović, Zoran; Alves, Alida; Gómez, Jose Patiño; Weesakul, Sutat; Keerakamolchai, Weeraya; Meesuk, Vorawit; Sánchez, Arlex

doi:10.1016/j.scitotenv.2021.147725

Cited by 65 publications

(30 citation statements)

References 34 publications

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“…Though large-scale NbS is similar to traditional engineering methods, large-scale NbS not only achieves disaster reduction by restoring the original appearance of the landscape or using natural materials, but increases biodiversity, improves environmental resilience, or provides added value such as an amenity-oriented environment to the general public. As a result, this study believes that grey measures combined with both small and large-scale NBS should be the future trend [12,13].…”

Section: Introductionmentioning

confidence: 80%

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Evaluation of Flood Mitigation Effectiveness of Nature-Based Solutions Potential Cases with an Assessment Model for Flood Mitigation

Huang

et al. 2021

Water

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In recent years, climate change has been widely discussed around the world. The Intergovernmental Panel on Climate Change (IPCC) published the Sixth Assessment Report (AR6) in 2021, which stated that with the intensification of global warming, heavy rainfalls are becoming more severe and frequent. Economic development in recent years has also caused the proportion of impervious areas in urban regions to increase with the advancement of urbanization. When the two aforementioned factors are coupled together, the result is faster surface runoff speeds and reduced infiltration rates, which in turn result in worse flooding. Thus, water disaster mitigation is becoming a topic of great importance to developed and developing countries. This study examined five Nature-based Solutions (NbS) cases (A, B C, D, E) for the Nangang river in Taiwan. Case A is to design levees with a 100-year return period flood design standard. Under steady flow conditions, floods can be smoothly discharged downstream without any significant inundation in most situations. Case B and C used gabions with a 10-year return period flood design standard and discontinuous levees with a 25-year return period flood design standard, respectively. Though neither case is as effective in flood mitigation, both cases B and C can still reduce inundation from the flooding disaster relatively well. Case D is to dredge local areas of the main channel, but the steady flow simulation showed little flood mitigation effect. Case E is the implementation of “Room for the River”, and employs main channel dredging and floodplain land grading to increase flood conveyance capacity. Case E provides good flood mitigation.

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Section: Introductionmentioning

confidence: 80%

“…The literature to date shows that various social challenges can be addressed through NbS. Reducing flood risk [14], reducing surface runoff [13], reducing exposure to soil erosion and landslides [15], and limiting coastal erosion [16] are a few examples of such challenges. Such benefits help in reaching sustainable water management.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Flood Mitigation Effectiveness of Nature-Based Solutions Potential Cases with an Assessment Model for Flood Mitigation

Huang

et al. 2021

Water

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“…In terms of the scale of implementation, NBSs can be divided into small-and largescale solutions. Small-scale NBSs are implemented on an urban or local scale [237], whereas large-scale ones are implemented at the regional level in rural and mountainous areas and/or river basins and coastal zones [236,238]. Typical examples of small-scale NBSs are green roofs, rain gardens, rainwater harvesting, dry detention ponds, permeable pavements, bio-retention, vegetated swales, and trees.…”

Section: Nature-based Solutionsmentioning

confidence: 99%

“…Although several studies address the usefulness and potential of NBSs in water management and flood mitigation [163,238], very limited information is available regarding their effectiveness in flood mitigation [250]. The effects of NBSs on flood extent, water depth, and flow velocity are still poorly known [251], yet are crucial for implementing NBSs [252].…”

Section: Nature-based Solutionsmentioning

confidence: 99%

Flood Risk in Urban Areas: Modelling, Management and Adaptation to Climate Change. A Review

2022

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The modelling and management of flood risk in urban areas are increasingly recognized as global challenges. The complexity of these issues is a consequence of the existence of several distinct sources of risk, including not only fluvial, tidal and coastal flooding, but also exposure to urban runoff and local drainage failure, and the various management strategies that can be proposed. The high degree of vulnerability that characterizes such areas is expected to increase in the future due to the effects of climate change, the growth of the population living in cities, and urban densification. An increasing awareness of the socio-economic losses and environmental impact of urban flooding is clearly reflected in the recent expansion of the number of studies related to the modelling and management of urban flooding, sometimes within the framework of adaptation to climate change. The goal of the current paper is to provide a general review of the recent advances in flood-risk modelling and management, while also exploring future perspectives in these fields of research.

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“…Researchers and practitioners have recommended that Nature-Based Solution (NBS), a novel approach toward catastrophe risk reduction, water security, and climate change resilience, is more effective and sustainable than traditional strategies [68]. Both urban and rural areas can benefit from ecosystem flood management services.…”

Section: Ecosystem-based Approaches For Flood Managementmentioning

confidence: 99%

Flood Management Issues in Hilly Regions of Uttarakhand (India) under Changing Climatic Conditions

Kansal

Singh

2022

Water

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Uttarakhand, an Indian Himalayan state in India, is famous for its natural environment, health rejuvenation, adventure, and a pilgrimage centre for various religions. It is categorised into two major regions, i.e., the Garhwal and the Kumaon, and geographically, the Bhabar and the Terai. Floods, cloudbursts, glacier lake outbursts, and landslides are the major natural hazards that cause the highest number of mortalities and property damage in this state. After becoming a full 27th state of India in 2000, the developmental activities have increased many folds, which has added to such calamities. This study briefly summarises the major incidents of flood damage, describes the fragile geology of this Himalayan state, and identifies the natural as well as the anthropogenic causes of the flood as a disaster. It also highlights the issue of climate change in the state and its adverse impact in the form of extreme precipitation. Besides these, it reviews the challenges involved in flood management and highlights the effective flood risk management plan that may be adopted to alleviate its adverse impacts.

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Effectiveness of small- and large-scale Nature-Based Solutions for flood mitigation: The case of Ayutthaya, Thailand

Cited by 65 publications

References 34 publications

Evaluation of Flood Mitigation Effectiveness of Nature-Based Solutions Potential Cases with an Assessment Model for Flood Mitigation

Evaluation of Flood Mitigation Effectiveness of Nature-Based Solutions Potential Cases with an Assessment Model for Flood Mitigation

Flood Risk in Urban Areas: Modelling, Management and Adaptation to Climate Change. A Review

Flood Management Issues in Hilly Regions of Uttarakhand (India) under Changing Climatic Conditions

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