Deciphering Hulun lake level dynamics and periodical response to climate change during 1961–2020
Study Region:: Hulun Lake, the fifth largest lake in China. Study Focus:: The notable decline in water level (WL) caused by climate change is the primary challenge faced by Hulun Lake. However, the contribution of climate to water loss and its driving mechanisms remain unclear. The impact of climate...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Journal of Hydrology: Regional Studies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581823000393 |
| _version_ | 1797867633505206272 |
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| author | Yuqi Huang Bo Yao Yu Li Hao Zhang Shengrui Wang |
| author_facet | Yuqi Huang Bo Yao Yu Li Hao Zhang Shengrui Wang |
| author_sort | Yuqi Huang |
| collection | DOAJ |
| description | Study Region:: Hulun Lake, the fifth largest lake in China. Study Focus:: The notable decline in water level (WL) caused by climate change is the primary challenge faced by Hulun Lake. However, the contribution of climate to water loss and its driving mechanisms remain unclear. The impact of climate on WL change was investigated using wavelet analysis and structural equation models. New Hydrological Insights for the Region:: In the past 60 years, the increasing potential evapotranspiration (ETp) caused by warming climate was the main reason for the WL decline (r=−0.67). For period I (1961–1997), reduced runoff due to increasing ETp caused an overall decrease in WL (r = 0.41). During the mid-1980s, the increase in rainfall driven by ENSO (r = −0.66) caused a slight increase in WL (r = 0.31). For period II (1998–2020), deforestation, farmland and urban area expansion were the main drivers behind the significant increase of ETp in the watershed (r = −0.22), which leads to reduced runoff and, consequently, a significant decrease in WL. The influence of climate on WL change weakened compared with that in the first period due to land use change (r = −1.08). |
| first_indexed | 2024-04-09T23:44:21Z |
| format | Article |
| id | doaj.art-fa7a40d4e05d420db9d2cf79d12dd928 |
| institution | Directory Open Access Journal |
| issn | 2214-5818 |
| language | English |
| last_indexed | 2024-04-09T23:44:21Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj.art-fa7a40d4e05d420db9d2cf79d12dd9282023-03-18T04:41:19ZengElsevierJournal of Hydrology: Regional Studies2214-58182023-04-0146101352Deciphering Hulun lake level dynamics and periodical response to climate change during 1961–2020Yuqi Huang0Bo Yao1Yu Li2Hao Zhang3Shengrui Wang4College of Water Sciences, Beijing Normal University, Beijing 100875, China; Guangdong-Hong Kong Joint Laboratory for Water Security, Center for Water Research, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, 519087, China; Engineering Research Center of Ministry of Education on Groundwater Pollution Control and Remediation, College of Water Sciences, Beijing Normal University, Beijing, 100875, ChinaKey Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, ChinaCollege of Water Sciences, Beijing Normal University, Beijing 100875, China; Guangdong-Hong Kong Joint Laboratory for Water Security, Center for Water Research, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, 519087, China; Engineering Research Center of Ministry of Education on Groundwater Pollution Control and Remediation, College of Water Sciences, Beijing Normal University, Beijing, 100875, ChinaCollege of Water Sciences, Beijing Normal University, Beijing 100875, China; Guangdong-Hong Kong Joint Laboratory for Water Security, Center for Water Research, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, 519087, China; Engineering Research Center of Ministry of Education on Groundwater Pollution Control and Remediation, College of Water Sciences, Beijing Normal University, Beijing, 100875, ChinaCollege of Water Sciences, Beijing Normal University, Beijing 100875, China; Guangdong-Hong Kong Joint Laboratory for Water Security, Center for Water Research, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, 519087, China; Engineering Research Center of Ministry of Education on Groundwater Pollution Control and Remediation, College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Corresponding author.Study Region:: Hulun Lake, the fifth largest lake in China. Study Focus:: The notable decline in water level (WL) caused by climate change is the primary challenge faced by Hulun Lake. However, the contribution of climate to water loss and its driving mechanisms remain unclear. The impact of climate on WL change was investigated using wavelet analysis and structural equation models. New Hydrological Insights for the Region:: In the past 60 years, the increasing potential evapotranspiration (ETp) caused by warming climate was the main reason for the WL decline (r=−0.67). For period I (1961–1997), reduced runoff due to increasing ETp caused an overall decrease in WL (r = 0.41). During the mid-1980s, the increase in rainfall driven by ENSO (r = −0.66) caused a slight increase in WL (r = 0.31). For period II (1998–2020), deforestation, farmland and urban area expansion were the main drivers behind the significant increase of ETp in the watershed (r = −0.22), which leads to reduced runoff and, consequently, a significant decrease in WL. The influence of climate on WL change weakened compared with that in the first period due to land use change (r = −1.08).http://www.sciencedirect.com/science/article/pii/S2214581823000393LakeWater resourcesClimate changeSEMLanduse |
| spellingShingle | Yuqi Huang Bo Yao Yu Li Hao Zhang Shengrui Wang Deciphering Hulun lake level dynamics and periodical response to climate change during 1961–2020 Journal of Hydrology: Regional Studies Lake Water resources Climate change SEM Landuse |
| title | Deciphering Hulun lake level dynamics and periodical response to climate change during 1961–2020 |
| title_full | Deciphering Hulun lake level dynamics and periodical response to climate change during 1961–2020 |
| title_fullStr | Deciphering Hulun lake level dynamics and periodical response to climate change during 1961–2020 |
| title_full_unstemmed | Deciphering Hulun lake level dynamics and periodical response to climate change during 1961–2020 |
| title_short | Deciphering Hulun lake level dynamics and periodical response to climate change during 1961–2020 |
| title_sort | deciphering hulun lake level dynamics and periodical response to climate change during 1961 2020 |
| topic | Lake Water resources Climate change SEM Landuse |
| url | http://www.sciencedirect.com/science/article/pii/S2214581823000393 |
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