Coordination of Flood Control under Urbanization on the Taihu Plain: Basin, City and Region Perspectives

Floods have become increasingly frequent and pose more significant risks in delta plains due to rapid urbanization. While previous studies have primarily focused on urban flood management, there has been a limited exploration of coordinated flood control strategies that encompass cities, regions, an...

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Main Authors: Miao Lu, Congxuan Kang, Zhihui Yu, Xiuhong Zhang
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/15/21/3723
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author Miao Lu
Congxuan Kang
Zhihui Yu
Xiuhong Zhang
author_facet Miao Lu
Congxuan Kang
Zhihui Yu
Xiuhong Zhang
author_sort Miao Lu
collection DOAJ
description Floods have become increasingly frequent and pose more significant risks in delta plains due to rapid urbanization. While previous studies have primarily focused on urban flood management, there has been a limited exploration of coordinated flood control strategies that encompass cities, regions, and basins holistically. In response to this gap, our research aims to quantitatively assess flood control coordination under various scheduling rules and propose optimized strategies to enhance this coordination. Using the Wu-Cheng-Xi-Yu region as our case study, we observed that flood characteristics under different flood control coordination schemes varied slightly, especially the FI. Moreover, the effectiveness of different scheduling optimization schemes varied across different levels. Specifically, at the basin–region, basin–city, and region–city levels, Schemes S8, S7, and S5 demonstrated the highest coordination coefficients, with values of 0.80, 0.67, and 0.68, respectively. In comparison to the current scheduling Scheme (S0), these schemes resulted in significant improvements in flood coordination, with enhancements of 0.68, 0.37, and 0.22, respectively. Furthermore, our findings indicate that the most effective approach to strengthening flood control coordination involves implementing scheduling measures that reduce urban drainage while simultaneously improving the discharge capacity of the basin. Our results could help to alleviate the contradictions of flood control at different levels and provide a solid guarantee for water security.
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spelling doaj.art-87304f65990e4e3e9bf782c1cb53e6692023-11-10T15:15:07ZengMDPI AGWater2073-44412023-10-011521372310.3390/w15213723Coordination of Flood Control under Urbanization on the Taihu Plain: Basin, City and Region PerspectivesMiao Lu0Congxuan Kang1Zhihui Yu2Xiuhong Zhang3College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225000, ChinaNanjing Geological Survey Center, China Geological Survey, Nanjing 210000, ChinaSchool of Geography and Ocean Science, Nanjing University, Nanjing 210023, ChinaSchool of Geomatics and Municipal Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, ChinaFloods have become increasingly frequent and pose more significant risks in delta plains due to rapid urbanization. While previous studies have primarily focused on urban flood management, there has been a limited exploration of coordinated flood control strategies that encompass cities, regions, and basins holistically. In response to this gap, our research aims to quantitatively assess flood control coordination under various scheduling rules and propose optimized strategies to enhance this coordination. Using the Wu-Cheng-Xi-Yu region as our case study, we observed that flood characteristics under different flood control coordination schemes varied slightly, especially the FI. Moreover, the effectiveness of different scheduling optimization schemes varied across different levels. Specifically, at the basin–region, basin–city, and region–city levels, Schemes S8, S7, and S5 demonstrated the highest coordination coefficients, with values of 0.80, 0.67, and 0.68, respectively. In comparison to the current scheduling Scheme (S0), these schemes resulted in significant improvements in flood coordination, with enhancements of 0.68, 0.37, and 0.22, respectively. Furthermore, our findings indicate that the most effective approach to strengthening flood control coordination involves implementing scheduling measures that reduce urban drainage while simultaneously improving the discharge capacity of the basin. Our results could help to alleviate the contradictions of flood control at different levels and provide a solid guarantee for water security.https://www.mdpi.com/2073-4441/15/21/3723flood control coordinationoptimal schedulingbasinregioncityurbanization
spellingShingle Miao Lu
Congxuan Kang
Zhihui Yu
Xiuhong Zhang
Coordination of Flood Control under Urbanization on the Taihu Plain: Basin, City and Region Perspectives
Water
flood control coordination
optimal scheduling
basin
region
city
urbanization
title Coordination of Flood Control under Urbanization on the Taihu Plain: Basin, City and Region Perspectives
title_full Coordination of Flood Control under Urbanization on the Taihu Plain: Basin, City and Region Perspectives
title_fullStr Coordination of Flood Control under Urbanization on the Taihu Plain: Basin, City and Region Perspectives
title_full_unstemmed Coordination of Flood Control under Urbanization on the Taihu Plain: Basin, City and Region Perspectives
title_short Coordination of Flood Control under Urbanization on the Taihu Plain: Basin, City and Region Perspectives
title_sort coordination of flood control under urbanization on the taihu plain basin city and region perspectives
topic flood control coordination
optimal scheduling
basin
region
city
urbanization
url https://www.mdpi.com/2073-4441/15/21/3723
work_keys_str_mv AT miaolu coordinationoffloodcontrolunderurbanizationonthetaihuplainbasincityandregionperspectives
AT congxuankang coordinationoffloodcontrolunderurbanizationonthetaihuplainbasincityandregionperspectives
AT zhihuiyu coordinationoffloodcontrolunderurbanizationonthetaihuplainbasincityandregionperspectives
AT xiuhongzhang coordinationoffloodcontrolunderurbanizationonthetaihuplainbasincityandregionperspectives