| Autor: |
WANG Yuefeng, CUI Tingting, XU Youpeng, WANG Qiang |
| Jazyk: |
čínština |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Renmin Zhujiang, Vol 44 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1001-9235 |
| DOI: |
10.3969/j.issn.1001-9235.2023.07.003 |
| Popis: |
The construction of polders in plain water network areas has changed the pattern of flood control and drainage,and the transfer of urban flood risks caused by it is still unclear.By comprehensively applying urban flood coupling simulation and risk assessment method,this paper quantitatively revealed the urban flood risk transfer caused by polders for flood control in Changzhou City and put forward the flood risk coordination scheme through typical flood simulation analysis.The results show that:① The use of polders for flood control reduces the inundated area by 56%~64% and the severely inundated area (>1.0 m) by 70.2% and aggravates the flood disaster in the southern and eastern parts of the enclosure;② the implementation of polders for flood control accelerates the transfer of flood risks from urban areas to suburbs,which can reduce the flood risk of 4~5 subcatchment areas within the enclosure by more than 50%,while the flood risk increases significantly in the three subcatchment areas in the southern and eastern parts of the enclosure;③ according to the principle of risk sharing,the water level of polders for flood control is increased by 0~0.10 m,which can be used as an alternative scheme for Changzhou flood control dispatching in the future.The research results can provide a reference for urban flood control and disaster reduction and flood optimal dispatching in plain water network areas. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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