Effects of urbanization on the ephemeral lake flood risks under subtropical humid monsoon climate
Study region: Poyang Lake region, China. Study focus: This study focuses on addressing severe summer monsoon floods in the Poyang Lake region under subtropical monsoon climate conditions. Employing the Seasonal Water Yield analysis within the Integrated Valuation of Ecosystem Services and Tradeoffs...
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Elsevier
2025-02-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581824004439 |
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| author | Biqing Tian Chaojun Gu Hao Jia Peng Gao Liping Guo Xingmin Mu |
| author_facet | Biqing Tian Chaojun Gu Hao Jia Peng Gao Liping Guo Xingmin Mu |
| author_sort | Biqing Tian |
| collection | DOAJ |
| description | Study region: Poyang Lake region, China. Study focus: This study focuses on addressing severe summer monsoon floods in the Poyang Lake region under subtropical monsoon climate conditions. Employing the Seasonal Water Yield analysis within the Integrated Valuation of Ecosystem Services and Tradeoffs framework to investigate and assess the impacts of subtropical monsoon climate and urban dynamics on regional flood risk. By combining simulation results with analysis of regional urban distribution, the study aims to identify sensitive changes in flood hazard characteristics. Ultimately, the research seeks to enhance regional flood resilience to address climate change and urban development challenges. New hydrological insights for the region: Upon analyzing the model simulation results, we discovered that the subtropical humid monsoon climate contributes significantly, accounting for 35.98 % of surface runoff variability during the ephemeral lake region's flood season. Rapid urbanization amplifies the negative impact of land use change on surface runoff (with a contribution rate of 26.00 %). In urban agglomeration areas, surface runoff increased by 30 mm, and the area with surface runoff production of 60–90 mm increased by 120.33 km2. Implementing proactive ecological management measures around lakes and riverbanks has mitigated flood risks across 22 administrative regions, reducing high-risk flood areas by 92.15 km². Restoration of lake flood storage capacity has significantly bolstered resilience against flood disasters. |
| format | Article |
| id | doaj-art-2df375e2917447649b0625325c63299e |
| institution | Kabale University |
| issn | 2214-5818 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-2df375e2917447649b0625325c63299e2025-01-22T05:41:59ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102094Effects of urbanization on the ephemeral lake flood risks under subtropical humid monsoon climateBiqing Tian0Chaojun Gu1Hao Jia2Peng Gao3Liping Guo4Xingmin Mu5State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, ChinaYangtze River Basin Monitoring Center Station for Soil and Water Conservation, Changjiang Water Resources Commission, Wuhan, Hubei 430012, ChinaState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, ChinaState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China; Corresponding author at: State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, China.Jiangxi Provincial Key Laboratory of Silviculture, College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China; Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed, Jiangxi Agricultural University, Nanchang 330045, China; Corresponding author at: Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed, Jiangxi Agricultural University, Nanchang 330045, China.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, ChinaStudy region: Poyang Lake region, China. Study focus: This study focuses on addressing severe summer monsoon floods in the Poyang Lake region under subtropical monsoon climate conditions. Employing the Seasonal Water Yield analysis within the Integrated Valuation of Ecosystem Services and Tradeoffs framework to investigate and assess the impacts of subtropical monsoon climate and urban dynamics on regional flood risk. By combining simulation results with analysis of regional urban distribution, the study aims to identify sensitive changes in flood hazard characteristics. Ultimately, the research seeks to enhance regional flood resilience to address climate change and urban development challenges. New hydrological insights for the region: Upon analyzing the model simulation results, we discovered that the subtropical humid monsoon climate contributes significantly, accounting for 35.98 % of surface runoff variability during the ephemeral lake region's flood season. Rapid urbanization amplifies the negative impact of land use change on surface runoff (with a contribution rate of 26.00 %). In urban agglomeration areas, surface runoff increased by 30 mm, and the area with surface runoff production of 60–90 mm increased by 120.33 km2. Implementing proactive ecological management measures around lakes and riverbanks has mitigated flood risks across 22 administrative regions, reducing high-risk flood areas by 92.15 km². Restoration of lake flood storage capacity has significantly bolstered resilience against flood disasters.http://www.sciencedirect.com/science/article/pii/S2214581824004439LakeFlood disaster riskSurface runoffUrbanization |
| spellingShingle | Biqing Tian Chaojun Gu Hao Jia Peng Gao Liping Guo Xingmin Mu Effects of urbanization on the ephemeral lake flood risks under subtropical humid monsoon climate Journal of Hydrology: Regional Studies Lake Flood disaster risk Surface runoff Urbanization |
| title | Effects of urbanization on the ephemeral lake flood risks under subtropical humid monsoon climate |
| title_full | Effects of urbanization on the ephemeral lake flood risks under subtropical humid monsoon climate |
| title_fullStr | Effects of urbanization on the ephemeral lake flood risks under subtropical humid monsoon climate |
| title_full_unstemmed | Effects of urbanization on the ephemeral lake flood risks under subtropical humid monsoon climate |
| title_short | Effects of urbanization on the ephemeral lake flood risks under subtropical humid monsoon climate |
| title_sort | effects of urbanization on the ephemeral lake flood risks under subtropical humid monsoon climate |
| topic | Lake Flood disaster risk Surface runoff Urbanization |
| url | http://www.sciencedirect.com/science/article/pii/S2214581824004439 |
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