Risk assessment method of level-induced water scarcity in the city located along rivers: Application in Nanchang, China
In the context of global environmental changes, the problem of low water levels (LWLs) is becoming increasingly prominent and posing a significant threat to urban water security. At the same time, there have been noticeable changes in basin hydrological conditions, leading to compromised consistency...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Ecological Indicators |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X23013985 |
| _version_ | 1797422667672846336 |
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| author | Ming Tang Yanlei Li Wenpeng Wang Wentao Xu Ziyu Guan Zhenyu Wen Xingzhong Guan |
| author_facet | Ming Tang Yanlei Li Wenpeng Wang Wentao Xu Ziyu Guan Zhenyu Wen Xingzhong Guan |
| author_sort | Ming Tang |
| collection | DOAJ |
| description | In the context of global environmental changes, the problem of low water levels (LWLs) is becoming increasingly prominent and posing a significant threat to urban water security. At the same time, there have been noticeable changes in basin hydrological conditions, leading to compromised consistency of water level data based on historical monitoring. Assessing the adaptability of urban water intake projects to water level changes has become a challenging problem currently. Firstly, we have designed a new indicator with good consistency - velocity of water level descending (VWD). Secondly, we have interpreted the connotation of the risk of urban level-induced water scarcity (LIWS) based on the perspective of the coupling system of “water source - water intake engineering - the subsystem of urban water demand” (CSWWU). Thirdly, we constructed a risk assessment model of urban LIWS to quantify the possibility and consequences of adverse scenarios, aiming to enhance the city’s ability to respond to extreme events. Taking Nanchang as an example, we generated 972 preset scenarios, calculated the probability of all scenarios, and drew the risk map of LIWS. The results showed that: (1) When the water level of Nanchang Station descends to 10.33, 10.14 and 10.04 m, the water supply deficit of the urban water plant can be balanced by the saved water volume, which is released by activating three types of emergency measures, respectively. (2) The city faces the greatest risk of LIWS in January and February of each year, which is the key period of risk management. (3) By drawing a risk map, we have comprehensively evaluated the important scenarios about urban LIWS in the future. The risk assessment method for urban LIWS is based on the new indicator, which can provide theoretical support for urban emergency water supply management and promote local governments to fully utilize the resilience of coupling systems to adapt to constantly changing society and environment. |
| first_indexed | 2024-03-09T07:35:44Z |
| format | Article |
| id | doaj.art-dd0e426c16d04f2ca6511199dca05fe2 |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-03-09T07:35:44Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-dd0e426c16d04f2ca6511199dca05fe22023-12-03T05:40:07ZengElsevierEcological Indicators1470-160X2023-12-01157111256Risk assessment method of level-induced water scarcity in the city located along rivers: Application in Nanchang, ChinaMing Tang0Yanlei Li1Wenpeng Wang2Wentao Xu3Ziyu Guan4Zhenyu Wen5Xingzhong Guan6School of Hydraulic & Ecological Engineering, Nanchang Institute of Technology, Nanchang, Jiangxi 330099, China; Jiangxi Key Laboratory of Hydrology-Water Resources and Water Environment, Nanchang, Jiangxi 330099, China; Corresponding author.School of Hydraulic & Ecological Engineering, Nanchang Institute of Technology, Nanchang, Jiangxi 330099, ChinaYaohu School, Nanchang Institute of Technology, Nanchang, Jiangxi 330099, ChinaSchool of Hydraulic & Ecological Engineering, Nanchang Institute of Technology, Nanchang, Jiangxi 330099, China; Institute of Water Science and Technology, Hohai University, Nanjing, Jiangsu 210024, ChinaYaohu School, Nanchang Institute of Technology, Nanchang, Jiangxi 330099, ChinaJiangxi Provincial Hydrological Monitoring Center, Nanchang, Jiangxi 330002, ChinaJiangxi Provincial Hydrological Monitoring Center, Nanchang, Jiangxi 330002, ChinaIn the context of global environmental changes, the problem of low water levels (LWLs) is becoming increasingly prominent and posing a significant threat to urban water security. At the same time, there have been noticeable changes in basin hydrological conditions, leading to compromised consistency of water level data based on historical monitoring. Assessing the adaptability of urban water intake projects to water level changes has become a challenging problem currently. Firstly, we have designed a new indicator with good consistency - velocity of water level descending (VWD). Secondly, we have interpreted the connotation of the risk of urban level-induced water scarcity (LIWS) based on the perspective of the coupling system of “water source - water intake engineering - the subsystem of urban water demand” (CSWWU). Thirdly, we constructed a risk assessment model of urban LIWS to quantify the possibility and consequences of adverse scenarios, aiming to enhance the city’s ability to respond to extreme events. Taking Nanchang as an example, we generated 972 preset scenarios, calculated the probability of all scenarios, and drew the risk map of LIWS. The results showed that: (1) When the water level of Nanchang Station descends to 10.33, 10.14 and 10.04 m, the water supply deficit of the urban water plant can be balanced by the saved water volume, which is released by activating three types of emergency measures, respectively. (2) The city faces the greatest risk of LIWS in January and February of each year, which is the key period of risk management. (3) By drawing a risk map, we have comprehensively evaluated the important scenarios about urban LIWS in the future. The risk assessment method for urban LIWS is based on the new indicator, which can provide theoretical support for urban emergency water supply management and promote local governments to fully utilize the resilience of coupling systems to adapt to constantly changing society and environment.http://www.sciencedirect.com/science/article/pii/S1470160X23013985Velocity of water level descending (VWD)level-induced water scarcity (LIWS)Risk assessmentRisk mapRisk management strategy |
| spellingShingle | Ming Tang Yanlei Li Wenpeng Wang Wentao Xu Ziyu Guan Zhenyu Wen Xingzhong Guan Risk assessment method of level-induced water scarcity in the city located along rivers: Application in Nanchang, China Ecological Indicators Velocity of water level descending (VWD) level-induced water scarcity (LIWS) Risk assessment Risk map Risk management strategy |
| title | Risk assessment method of level-induced water scarcity in the city located along rivers: Application in Nanchang, China |
| title_full | Risk assessment method of level-induced water scarcity in the city located along rivers: Application in Nanchang, China |
| title_fullStr | Risk assessment method of level-induced water scarcity in the city located along rivers: Application in Nanchang, China |
| title_full_unstemmed | Risk assessment method of level-induced water scarcity in the city located along rivers: Application in Nanchang, China |
| title_short | Risk assessment method of level-induced water scarcity in the city located along rivers: Application in Nanchang, China |
| title_sort | risk assessment method of level induced water scarcity in the city located along rivers application in nanchang china |
| topic | Velocity of water level descending (VWD) level-induced water scarcity (LIWS) Risk assessment Risk map Risk management strategy |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X23013985 |
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