Spatio-temporal variability and trend of blue-green water resources in the Kaidu River Basin, an arid region of China
Study region: Kaidu River Basin, an arid region of China Study focus: Water resources are scarce and unstable. Adverse changes in blue-green water resources can disrupt water balance and availability in arid regions. Therefore, it is crucial to effectively assess and predict future blue-green water...
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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 |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581823003270 |
| _version_ | 1797342214439829504 |
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| author | Yunfei Cai Fei Zhang Guang Gao Chi Yung Jim Mou Leong Tan Jingchao Shi Weiwei Wang Qi Zhao |
| author_facet | Yunfei Cai Fei Zhang Guang Gao Chi Yung Jim Mou Leong Tan Jingchao Shi Weiwei Wang Qi Zhao |
| author_sort | Yunfei Cai |
| collection | DOAJ |
| description | Study region: Kaidu River Basin, an arid region of China Study focus: Water resources are scarce and unstable. Adverse changes in blue-green water resources can disrupt water balance and availability in arid regions. Therefore, it is crucial to effectively assess and predict future blue-green water resources in arid areas. This study utilizes the Soil and Water Assessment Tool (SWAT), Patch-generating Land Use Simulation (PLUS), and Global Circulation Models (GCMs) to analyze the interactive impacts of climate and land use/cover changes (LUCC) on blue-green water in arid basin from 1990 to 2050. New hydrological insights for the region: This work identified key factors influencing blue-green water changes, including forests, grasslands, and snowmelt. In the historical scenarios, the Kaidu River basin exhibited significant interannual variations in blue water and precipitation. In the future scenarios, blue water increases (+3.6%), and green water decreases (−1.8%) under SSP245 (medium emissions). Under SSP585 (high emissions), blue water decreases (−2.4%), and green water increases (+1.8%). Under SSP126 (low emissions), both blue water (+8.5%) and green water (+0.73%) show an increasing trend. The change in snowmelt is the main reason for the first peak of blue water in April May. Under historical and future snowmelt conditions, blue water shows a significant upward or downward trend with the amount of snowmelt. The findings provided practical hints for the enhancement of the management and allocation of precious water resources. |
| first_indexed | 2024-03-08T10:30:03Z |
| format | Article |
| id | doaj.art-f76b027d2d1740968ad2da5424522c3d |
| institution | Directory Open Access Journal |
| issn | 2214-5818 |
| language | English |
| last_indexed | 2024-03-08T10:30:03Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj.art-f76b027d2d1740968ad2da5424522c3d2024-01-27T06:55:04ZengElsevierJournal of Hydrology: Regional Studies2214-58182024-02-0151101640Spatio-temporal variability and trend of blue-green water resources in the Kaidu River Basin, an arid region of ChinaYunfei Cai0Fei Zhang1Guang Gao2Chi Yung Jim3Mou Leong Tan4Jingchao Shi5Weiwei Wang6Qi Zhao7School of Atmospheric Sciences, Nanjing University, Nanjing 210008, China; College of Geographical and Remote sensing Science, Xinjiang University, Urumqi 830046, ChinaCollege of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China; Corresponding authors.Nanjing Institute of Geography and Limnology, Nanjing 210008, ChinaDepartment of Social Sciences, University of Hong Kong, 999077, Hong Kong, ChinaMalaysia Geography Section, School of Humanities, Universiti Sains Malaysia, Penang 11800, MalaysiaDepartments of Earth Sciences, the University of Memphis, Memphis, TN 38152, USACollege of Geographical and Remote sensing Science, Xinjiang University, Urumqi 830046, ChinaXinjiang Bayingolin Mongolian Autonomous Prefecture Environmental Monitoring Station, Korla 84100, China; Corresponding authors.Study region: Kaidu River Basin, an arid region of China Study focus: Water resources are scarce and unstable. Adverse changes in blue-green water resources can disrupt water balance and availability in arid regions. Therefore, it is crucial to effectively assess and predict future blue-green water resources in arid areas. This study utilizes the Soil and Water Assessment Tool (SWAT), Patch-generating Land Use Simulation (PLUS), and Global Circulation Models (GCMs) to analyze the interactive impacts of climate and land use/cover changes (LUCC) on blue-green water in arid basin from 1990 to 2050. New hydrological insights for the region: This work identified key factors influencing blue-green water changes, including forests, grasslands, and snowmelt. In the historical scenarios, the Kaidu River basin exhibited significant interannual variations in blue water and precipitation. In the future scenarios, blue water increases (+3.6%), and green water decreases (−1.8%) under SSP245 (medium emissions). Under SSP585 (high emissions), blue water decreases (−2.4%), and green water increases (+1.8%). Under SSP126 (low emissions), both blue water (+8.5%) and green water (+0.73%) show an increasing trend. The change in snowmelt is the main reason for the first peak of blue water in April May. Under historical and future snowmelt conditions, blue water shows a significant upward or downward trend with the amount of snowmelt. The findings provided practical hints for the enhancement of the management and allocation of precious water resources.http://www.sciencedirect.com/science/article/pii/S2214581823003270Blue-green waterSpatio-temporal variabilitySWATCMIP6LUCCWater resource management |
| spellingShingle | Yunfei Cai Fei Zhang Guang Gao Chi Yung Jim Mou Leong Tan Jingchao Shi Weiwei Wang Qi Zhao Spatio-temporal variability and trend of blue-green water resources in the Kaidu River Basin, an arid region of China Journal of Hydrology: Regional Studies Blue-green water Spatio-temporal variability SWAT CMIP6 LUCC Water resource management |
| title | Spatio-temporal variability and trend of blue-green water resources in the Kaidu River Basin, an arid region of China |
| title_full | Spatio-temporal variability and trend of blue-green water resources in the Kaidu River Basin, an arid region of China |
| title_fullStr | Spatio-temporal variability and trend of blue-green water resources in the Kaidu River Basin, an arid region of China |
| title_full_unstemmed | Spatio-temporal variability and trend of blue-green water resources in the Kaidu River Basin, an arid region of China |
| title_short | Spatio-temporal variability and trend of blue-green water resources in the Kaidu River Basin, an arid region of China |
| title_sort | spatio temporal variability and trend of blue green water resources in the kaidu river basin an arid region of china |
| topic | Blue-green water Spatio-temporal variability SWAT CMIP6 LUCC Water resource management |
| url | http://www.sciencedirect.com/science/article/pii/S2214581823003270 |
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