Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China
Surface runoff from the Wei River basin, the largest tributary of the Yellow River in China, has dramatically decreased over last 51 years from 1958 to 2008. Climate change and human activities have been identified as the two main reasons for the decrease in runoff. The study period is split into tw...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2014-08-01
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| Series: | Hydrology and Earth System Sciences |
| Online Access: | http://www.hydrol-earth-syst-sci.net/18/3069/2014/hess-18-3069-2014.pdf |
| _version_ | 1819299053085655040 |
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| author | C. S. Zhan S. S. Jiang F. B. Sun Y. W. Jia C. W. Niu W. F. Yue |
| author_facet | C. S. Zhan S. S. Jiang F. B. Sun Y. W. Jia C. W. Niu W. F. Yue |
| author_sort | C. S. Zhan |
| collection | DOAJ |
| description | Surface runoff from the Wei River basin, the largest tributary of the Yellow
River in China, has dramatically decreased over last 51 years from 1958 to
2008. Climate change and human activities have been identified as the two
main reasons for the decrease in runoff. The study period is split into two
sub-periods (1958–1989 and 1990–2008) using the Mann–Kendall jump test.
This study develops an improved climate elasticity method based on the
original climate elasticity method, and conducts a quantitative assessment of
the impact of climate change and human activities on the runoff decrease in
the Wei River basin. The results from the original climate elasticity method
show that climatic impacts contribute
37–40% to the decrease
in runoff, while human impacts contribute 60–63%. In contrast,
the results from the improved climate elasticity method yield a climatic
contribution to runoff decrease of 22–29% and a human
contribution of 71–78%. A discussion of the simulation
reliability and uncertainty concludes that the improved climate elasticity
method has a better mechanism and can provide more reasonable results. |
| first_indexed | 2024-12-24T05:39:40Z |
| format | Article |
| id | doaj.art-4163cdd2f8054d1a8924161cbe11c4cb |
| institution | Directory Open Access Journal |
| issn | 1027-5606 1607-7938 |
| language | English |
| last_indexed | 2024-12-24T05:39:40Z |
| publishDate | 2014-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Hydrology and Earth System Sciences |
| spelling | doaj.art-4163cdd2f8054d1a8924161cbe11c4cb2022-12-21T17:12:51ZengCopernicus PublicationsHydrology and Earth System Sciences1027-56061607-79382014-08-011883069307710.5194/hess-18-3069-2014Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, ChinaC. S. Zhan0S. S. Jiang1F. B. Sun2Y. W. Jia3C. W. Niu4W. F. Yue5Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaCollege of Water Sciences, Beijing Normal University, 100875, Beijing, ChinaKey Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaCollege of Water Sciences, Beijing Normal University, 100875, Beijing, ChinaSurface runoff from the Wei River basin, the largest tributary of the Yellow River in China, has dramatically decreased over last 51 years from 1958 to 2008. Climate change and human activities have been identified as the two main reasons for the decrease in runoff. The study period is split into two sub-periods (1958–1989 and 1990–2008) using the Mann–Kendall jump test. This study develops an improved climate elasticity method based on the original climate elasticity method, and conducts a quantitative assessment of the impact of climate change and human activities on the runoff decrease in the Wei River basin. The results from the original climate elasticity method show that climatic impacts contribute 37–40% to the decrease in runoff, while human impacts contribute 60–63%. In contrast, the results from the improved climate elasticity method yield a climatic contribution to runoff decrease of 22–29% and a human contribution of 71–78%. A discussion of the simulation reliability and uncertainty concludes that the improved climate elasticity method has a better mechanism and can provide more reasonable results.http://www.hydrol-earth-syst-sci.net/18/3069/2014/hess-18-3069-2014.pdf |
| spellingShingle | C. S. Zhan S. S. Jiang F. B. Sun Y. W. Jia C. W. Niu W. F. Yue Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China Hydrology and Earth System Sciences |
| title | Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China |
| title_full | Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China |
| title_fullStr | Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China |
| title_full_unstemmed | Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China |
| title_short | Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China |
| title_sort | quantitative contribution of climate change and human activities to runoff changes in the wei river basin china |
| url | http://www.hydrol-earth-syst-sci.net/18/3069/2014/hess-18-3069-2014.pdf |
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