Deciphering the influence of climate change and human activities on the drought propagation
Study region: The Yiluo River Basin (YLRB), China Study focus: Understanding the alterations in drought propagation under evolving environmental conditions is crucial for the efficient management of water resources. In this study, the 'simulation-observation' comparison method was employed...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581824000028 |
| _version_ | 1797342200931024896 |
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| author | Weiru Zhao Jiefeng Wu Erhu Du Xiyuan Deng Gaoxia Sun Guoqing Wang |
| author_facet | Weiru Zhao Jiefeng Wu Erhu Du Xiyuan Deng Gaoxia Sun Guoqing Wang |
| author_sort | Weiru Zhao |
| collection | DOAJ |
| description | Study region: The Yiluo River Basin (YLRB), China Study focus: Understanding the alterations in drought propagation under evolving environmental conditions is crucial for the efficient management of water resources. In this study, the 'simulation-observation' comparison method was employed to analyze the drought propagation in distinct periods: baseline, simulated, and disturbed periods. This facilitated the quantification of the impact of climate change and human activities on drought propagation characteristics, such as the response time of the Standardized Streamflow Index (SSI) to the Standardized Precipitation Index (SPI) and the propagation threshold. New hydrological insights for the region: The response times of the SSI to the SPI has been prolonged at monthly and seasonal scales due to climate change, while it has been reduced at the annual scale. The impact of human activities on the lengthening of response time is only evident at longer temporal scales. Human activities have contributed to higher thresholds for severe and extreme droughts on monthly and annual scales, increasing the probability of extreme droughts. Meanwhile, climate change has partially offset the negative impacts of human activities. However, at the seasonal scale, climate change is the main cause of the increasing propagation thresholds. The conclusions drawn from this research provide valuable insights for the development of policies aimed at managing drought in a changing environment. |
| first_indexed | 2024-03-08T10:29:51Z |
| format | Article |
| id | doaj.art-c692538585144b6db21cc89745e91537 |
| institution | Directory Open Access Journal |
| issn | 2214-5818 |
| language | English |
| last_indexed | 2024-03-08T10:29:51Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj.art-c692538585144b6db21cc89745e915372024-01-27T06:55:07ZengElsevierJournal of Hydrology: Regional Studies2214-58182024-02-0151101654Deciphering the influence of climate change and human activities on the drought propagationWeiru Zhao0Jiefeng Wu1Erhu Du2Xiyuan Deng3Gaoxia Sun4Guoqing Wang5The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210098, China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, China; Cooperative Innovation Center for Water Safety and Hydro Science, Hohai University, Nanjing 210098, ChinaSchool of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing 210044, China; The National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaYangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, ChinaThe National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaThe National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaThe National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210098, China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, China; Cooperative Innovation Center for Water Safety and Hydro Science, Hohai University, Nanjing 210098, China; The National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, China; Corresponding author at: The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210098, China.Study region: The Yiluo River Basin (YLRB), China Study focus: Understanding the alterations in drought propagation under evolving environmental conditions is crucial for the efficient management of water resources. In this study, the 'simulation-observation' comparison method was employed to analyze the drought propagation in distinct periods: baseline, simulated, and disturbed periods. This facilitated the quantification of the impact of climate change and human activities on drought propagation characteristics, such as the response time of the Standardized Streamflow Index (SSI) to the Standardized Precipitation Index (SPI) and the propagation threshold. New hydrological insights for the region: The response times of the SSI to the SPI has been prolonged at monthly and seasonal scales due to climate change, while it has been reduced at the annual scale. The impact of human activities on the lengthening of response time is only evident at longer temporal scales. Human activities have contributed to higher thresholds for severe and extreme droughts on monthly and annual scales, increasing the probability of extreme droughts. Meanwhile, climate change has partially offset the negative impacts of human activities. However, at the seasonal scale, climate change is the main cause of the increasing propagation thresholds. The conclusions drawn from this research provide valuable insights for the development of policies aimed at managing drought in a changing environment.http://www.sciencedirect.com/science/article/pii/S2214581824000028Drought propagationHydrological droughtMeteorological droughtClimate changeHuman activities |
| spellingShingle | Weiru Zhao Jiefeng Wu Erhu Du Xiyuan Deng Gaoxia Sun Guoqing Wang Deciphering the influence of climate change and human activities on the drought propagation Journal of Hydrology: Regional Studies Drought propagation Hydrological drought Meteorological drought Climate change Human activities |
| title | Deciphering the influence of climate change and human activities on the drought propagation |
| title_full | Deciphering the influence of climate change and human activities on the drought propagation |
| title_fullStr | Deciphering the influence of climate change and human activities on the drought propagation |
| title_full_unstemmed | Deciphering the influence of climate change and human activities on the drought propagation |
| title_short | Deciphering the influence of climate change and human activities on the drought propagation |
| title_sort | deciphering the influence of climate change and human activities on the drought propagation |
| topic | Drought propagation Hydrological drought Meteorological drought Climate change Human activities |
| url | http://www.sciencedirect.com/science/article/pii/S2214581824000028 |
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