Integrated assessments of green infrastructure for flood mitigation to support robust decision-making for sponge city construction in an urbanized watershed

Mei, Chao; Liu, Jiahong; Wang, Hao; Yang, Zhiyong; Ding, Xiangyi; Shao, Weiwei

doi:10.1016/j.scitotenv.2018.05.199

Cited by 236 publications

(108 citation statements)

References 42 publications

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“…The benefits of these technologies on flood mitigation have been substantially documented in scientific literature (Damodaram et al, 2010 andGao et al, 2013), e.g. reduction in peak flow (Palanisamy and Chui, 2015), runoff (Baek et al, 2015), flood volume (Mei et al, 2018), inundation area (Hu et al, 2017b) and others. Palla and Gnecco (2015) found that the combinations of PP and green roof could reduce 23% of runoff and 45% of peak flow.…”

Section: Introductionmentioning

confidence: 99%

Flood mitigation performance of low impact development technologies under different storms for retrofitting an urbanized area

Zhang

Liu

et al. 2019

Journal of Cleaner Production

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Low impact development technologies (LIDs) have been reported as alternatives to mitigate urban water-related hazards, particularly for urban flooding. However, the effectiveness of LIDs on flood mitigation is still not well understood. This study assessed the mitigation extent of urban flooding by LIDs for retrofitting an urbanized area at a feasible level using a hydrological model. A range of storms with different rainfall durations and amounts from intensity-duration-frequency curves were used to evaluate the hydrological performances of LIDs. The results indicated that LIDs were effective alternatives to mitigate urban flooding in the urbanized area. Surface runoff and peak flow decreased by 18.6-59.2% and 8-71.4%, respectively. However, the flood mitigation performance decreased markedly with the increase of rainfall amount. Although LIDs were less effective in flood mitigation during shorter and heavier storms, the performance was better with the increase of rainfall duration. This research provides an insight into flood reduction capabilities of LIDs under different rainfall characteristics for retrofitting built up areas, which is useful for urban storm management.

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Section: Introductionmentioning

confidence: 99%

Flood mitigation performance of low impact development technologies under different storms for retrofitting an urbanized area

Zhang

Liu

et al. 2019

Journal of Cleaner Production

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“…Much attention is also paid to the importance of slow release and distributed rainwater in order to address urban road flooding rationally, and make full use of rainwater resources [15]. Adoption of the sponge urban facilities (such as pumps, storage tanks, wetlands, and a bioretention facilitity) is aimed at alleviating the urban flooding problem, which has always been a key issue in China [16].…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Characterization of Roadside Bioretention Systems

et al. 2019

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In the current study, three roadside bioretention systems with different configurations were constructed to investigate their pollutant removal efficiency in different rainfall recurrence intervals. The bioretention systems (referred as units) (unit A: 700 mm height material without submerged zone; unit B: 400 mm height material with 300 mm submerged zone; unit C: 400 mm height material without submerged zone) were used to conduct the rainfall events with uniform 120 min rainfall duration for 2-, 5-, 10-, 15-, and 30-year recurrence intervals. Results reveal that the gradual increase of rainfall return period would have negative effects on TN and NH 4 + -N removal. The higher filler layer may increase pollutant removal efficiency. Setting a submerged zone could improve the COD Mn and TN removal compared to TP and NH 4 + -N removal. The values for comprehensive reduction rate of pollutant load in the three bioretention systems were recorded as follows: 64% in SS, 50%~80% in TP, 69% in NH 4 + -N, and 28%~53% in NO 3 -N separately. These results provide greater understanding of the design and treatment performance of bioretention systems.

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“…We have addressed the study of the optimal SUDs combination to comply with both economic and hydrological goals. For this purpose, we have developed a Python code instead of using other models as SWMM [23,24]. It provided us with greater flexibility to perform specific studies such as the requirements for new developments to ensure the initial hydrological objectives are met.…”

Section: Discussionmentioning

confidence: 99%

Multi-Objective Approach for Determining Optimal Sustainable Urban Drainage Systems Combination at City Scale. The Case of San Luis Potosí (México)

Zubelzu

Rodríguez-Sinobas

Sordo‐Ward

et al. 2020

Water

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A method for determining the optimal Sustainable Urban Drainage Systems (SUDs) combination at city scale is presented in this paper. A comprehensive set of SUDs categories comprising infrastructures aimed at either detaining and locally reusing or infiltrating precipitation are considered. A volumetric water balance is proposed for modelling hydrological processes in urban catchments. A multi-criteria approach combining a cost function and aims for both recharging aquifers and limiting runoff contribution to water courses is proposed to find the optimal SUDs combination. The water balance was run with each possible SUDs combination and the optimal set of SUDs was found. The method was applied to the Metropolitan Area of San Luis Potosí (Mexico). The optimal solutions in this case clearly promoted surface runoff detention and reuse over porous pavements and green roofs but they were sensitive to the considered costs. The SUD requirements to potential new urban developments for each catchment to comply with the original hydrological aims were also studied. The method requires customizing the cost function and using representative climatic data.

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Integrated assessments of green infrastructure for flood mitigation to support robust decision-making for sponge city construction in an urbanized watershed

Cited by 236 publications

References 42 publications

Flood mitigation performance of low impact development technologies under different storms for retrofitting an urbanized area

Flood mitigation performance of low impact development technologies under different storms for retrofitting an urbanized area

Design and Performance Characterization of Roadside Bioretention Systems

Multi-Objective Approach for Determining Optimal Sustainable Urban Drainage Systems Combination at City Scale. The Case of San Luis Potosí (México)

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