Suzhou City,located in the Yangtze River Delta in China,is prone to flooding due to a complex combination of natural factors,including its monsoon climate,low elevation,and tidally influenced position,as well as inten...Suzhou City,located in the Yangtze River Delta in China,is prone to flooding due to a complex combination of natural factors,including its monsoon climate,low elevation,and tidally influenced position,as well as intensive human activities.The Large Encirclement Flood Control Project(LEFCP)was launched to cope with serious floods in the urban area.This project changed the spatiotemporal pattern of flood processes and caused spatial diversion of floods from the urban area to the outskirts of the city.Therefore,this study developed a distributed flood simulation model in order to understand this transition of flood processes.The results revealed that the LEFCP effectively protected the urban areas from floods,but the present scheduling schemes resulted in the spatial diversion of floods to the outskirts of the city.With rainstorm frequencies of 10.0%to 0.5%,the water level differences between two representative water level stations(Miduqiao(MDQ)and Fengqiao(FQ))located inside and outside the LEFCP area,ranged from 0.75 m to 0.24 m and from 1.80 m to 1.58 m,respectively.In addition,the flood safety margin at MDQ and the duration with the water level exceeding the warning water level at FQ ranged from 0.95 m to 0.43 m and from 4 h to 22 h,respectively.Rational scheduling schemes for the hydraulic facilities of the LEFCP in extreme precipitation cases were developed ac-cording to food simulations under seven scheduling scenarios.This helps to regulate the spatial flood diversion caused by the LEFCP during extreme precipitation.展开更多
ON the fifth day of the fifth month on the lunar calendar,most parts of China commemorate Qu Yuan(340-278 BC),the great Chinese poet who lived in the State of Chu during the Warring States period,by celebrating the Dr...ON the fifth day of the fifth month on the lunar calendar,most parts of China commemorate Qu Yuan(340-278 BC),the great Chinese poet who lived in the State of Chu during the Warring States period,by celebrating the Dragon Boat Festival.In Suzhou,a prosperous city in east China,local people’s folk customs during the festival differ from other regions.Here,the origin of the festival can be traced back to the commemoration of Wu Zixu(559-484 BC),a prestigious general of the State of Wu during the Spring and Autumn Period.Over time,the Dragon Boat Festival has gradually evolved into a grand event that is celebrated in Suzhou every year,featuring distinctive local cultural traditions and folk activities that attract large turnouts of people.The custom was included in the first batch of China’s national intangible cultural heritage items in 2006.展开更多
基金supported by the National Natural Science Foundation of China(Grants No.42001025 and 42001014)the Belt and Road Special Foundation of the State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering(Grant No.2021491211)the Natural Science Foundation of Ningbo Municipality(Grant No.2023J133).
文摘Suzhou City,located in the Yangtze River Delta in China,is prone to flooding due to a complex combination of natural factors,including its monsoon climate,low elevation,and tidally influenced position,as well as intensive human activities.The Large Encirclement Flood Control Project(LEFCP)was launched to cope with serious floods in the urban area.This project changed the spatiotemporal pattern of flood processes and caused spatial diversion of floods from the urban area to the outskirts of the city.Therefore,this study developed a distributed flood simulation model in order to understand this transition of flood processes.The results revealed that the LEFCP effectively protected the urban areas from floods,but the present scheduling schemes resulted in the spatial diversion of floods to the outskirts of the city.With rainstorm frequencies of 10.0%to 0.5%,the water level differences between two representative water level stations(Miduqiao(MDQ)and Fengqiao(FQ))located inside and outside the LEFCP area,ranged from 0.75 m to 0.24 m and from 1.80 m to 1.58 m,respectively.In addition,the flood safety margin at MDQ and the duration with the water level exceeding the warning water level at FQ ranged from 0.95 m to 0.43 m and from 4 h to 22 h,respectively.Rational scheduling schemes for the hydraulic facilities of the LEFCP in extreme precipitation cases were developed ac-cording to food simulations under seven scheduling scenarios.This helps to regulate the spatial flood diversion caused by the LEFCP during extreme precipitation.
文摘ON the fifth day of the fifth month on the lunar calendar,most parts of China commemorate Qu Yuan(340-278 BC),the great Chinese poet who lived in the State of Chu during the Warring States period,by celebrating the Dragon Boat Festival.In Suzhou,a prosperous city in east China,local people’s folk customs during the festival differ from other regions.Here,the origin of the festival can be traced back to the commemoration of Wu Zixu(559-484 BC),a prestigious general of the State of Wu during the Spring and Autumn Period.Over time,the Dragon Boat Festival has gradually evolved into a grand event that is celebrated in Suzhou every year,featuring distinctive local cultural traditions and folk activities that attract large turnouts of people.The custom was included in the first batch of China’s national intangible cultural heritage items in 2006.
