Study on Response Process and Time Delay Effect of Groundwater Dynamic in Northeastern Margin of Tibetan Plateau
Under the background of drastic global climate change, the evolution law of groundwater resources in the northeastern margin of the Tibetan Plateau presents new characteristics, and the groundwater is gradually becoming more complicated, diversified and disordered. In this study, cross-correlation a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/15/2838 |
| _version_ | 1797585860443504640 |
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| author | Shuhong Song Huanhuan Li Mi Yang Zhao Gu Xiaohang Wang Wenting Zhang Yongzhi Liu |
| author_facet | Shuhong Song Huanhuan Li Mi Yang Zhao Gu Xiaohang Wang Wenting Zhang Yongzhi Liu |
| author_sort | Shuhong Song |
| collection | DOAJ |
| description | Under the background of drastic global climate change, the evolution law of groundwater resources in the northeastern margin of the Tibetan Plateau presents new characteristics, and the groundwater is gradually becoming more complicated, diversified and disordered. In this study, cross-correlation analysis, wavelet analysis and cross-wavelet transform were used to explore the response mechanism and time delay effect of groundwater, exploitation amount, rainfall and surface runoff in the northeastern margin of the Tibetan Plateau. The results show that the groundwater depth increased with the increase in the exploitation amount and decreased with the increase in the rainfall-to-exploitation ration and the surface runoff-to-exploitation ratio from 1980 to 2020. On the annual scale, groundwater, rainfall and surface runoff had a strong cohesiveness period of 12a. On the monthly scale, groundwater lagged behind rainfall and surface runoff for 3 months and 2 months, respectively. The above conclusions provide a scientific theoretical basis for deepening the characteristics of groundwater endowment, the evolution law of water cycle elements and the theory of the hydrological cycle in the northeastern margin of the Tibetan Plateau. |
| first_indexed | 2024-03-11T00:13:06Z |
| format | Article |
| id | doaj.art-0502c7f7d82b4607acad3ddd69d24a7d |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T00:13:06Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-0502c7f7d82b4607acad3ddd69d24a7d2023-11-18T23:48:25ZengMDPI AGWater2073-44412023-08-011515283810.3390/w15152838Study on Response Process and Time Delay Effect of Groundwater Dynamic in Northeastern Margin of Tibetan PlateauShuhong Song0Huanhuan Li1Mi Yang2Zhao Gu3Xiaohang Wang4Wenting Zhang5Yongzhi Liu6Hydrology and Water Resources Survey Center of Shaanxi Province, Xi’an 710068, ChinaSchool of Water and Environment, Chang’an University, Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of the Ministry of Education, Chang’an University, Xi’an 710054, ChinaHydrology and Water Resources Survey Center of Shaanxi Province, Xi’an 710068, ChinaHydrology and Water Resources Survey Center of Shaanxi Province, Xi’an 710068, ChinaNanjing Hydraulic Research Institute, Nanjing 210024, ChinaCollege of Hydrology and Water Resource, Hohai University, Nanjing 210098, ChinaNanjing Hydraulic Research Institute, Nanjing 210024, ChinaUnder the background of drastic global climate change, the evolution law of groundwater resources in the northeastern margin of the Tibetan Plateau presents new characteristics, and the groundwater is gradually becoming more complicated, diversified and disordered. In this study, cross-correlation analysis, wavelet analysis and cross-wavelet transform were used to explore the response mechanism and time delay effect of groundwater, exploitation amount, rainfall and surface runoff in the northeastern margin of the Tibetan Plateau. The results show that the groundwater depth increased with the increase in the exploitation amount and decreased with the increase in the rainfall-to-exploitation ration and the surface runoff-to-exploitation ratio from 1980 to 2020. On the annual scale, groundwater, rainfall and surface runoff had a strong cohesiveness period of 12a. On the monthly scale, groundwater lagged behind rainfall and surface runoff for 3 months and 2 months, respectively. The above conclusions provide a scientific theoretical basis for deepening the characteristics of groundwater endowment, the evolution law of water cycle elements and the theory of the hydrological cycle in the northeastern margin of the Tibetan Plateau.https://www.mdpi.com/2073-4441/15/15/2838cross-wavelet transformresponse processtime delay effectgroundwaterTibetan Plateau |
| spellingShingle | Shuhong Song Huanhuan Li Mi Yang Zhao Gu Xiaohang Wang Wenting Zhang Yongzhi Liu Study on Response Process and Time Delay Effect of Groundwater Dynamic in Northeastern Margin of Tibetan Plateau Water cross-wavelet transform response process time delay effect groundwater Tibetan Plateau |
| title | Study on Response Process and Time Delay Effect of Groundwater Dynamic in Northeastern Margin of Tibetan Plateau |
| title_full | Study on Response Process and Time Delay Effect of Groundwater Dynamic in Northeastern Margin of Tibetan Plateau |
| title_fullStr | Study on Response Process and Time Delay Effect of Groundwater Dynamic in Northeastern Margin of Tibetan Plateau |
| title_full_unstemmed | Study on Response Process and Time Delay Effect of Groundwater Dynamic in Northeastern Margin of Tibetan Plateau |
| title_short | Study on Response Process and Time Delay Effect of Groundwater Dynamic in Northeastern Margin of Tibetan Plateau |
| title_sort | study on response process and time delay effect of groundwater dynamic in northeastern margin of tibetan plateau |
| topic | cross-wavelet transform response process time delay effect groundwater Tibetan Plateau |
| url | https://www.mdpi.com/2073-4441/15/15/2838 |
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