| Climate change and hydrologic process response in the Tarim River Basin over the past 50 years |
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| 引用本文： | XU Changchun CHEN Yaning LI Weihong CHEN Yapeng. Climate change and hydrologic process response in the Tarim River Basin over the past 50 years[J]. 科学通报(英文版), 2006, 51(A01): 25-36 |
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| 作者姓名： | XU Changchun CHEN Yaning LI Weihong CHEN Yapeng |
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| 作者单位： | Xinjiang Institute of Ecology and Geography, Chinese Academy Of Sci ences, Urumqi 830011, China |
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| 基金项目： | Acknowledgements This work was financially supported by the Knowledge Innovation Project of the Chinese Academy of Sciences （＂Water Resources Utilization and Integrated Management Demonstration in Tarim River Basin＂） and National Natural Science Foundation of China （Grant Nos. 90502004 ＆ 30500081）. The authors would like to acknowledge the help of them. |
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| 摘 要： | ![]()
Climate change and hydrologic process response in the Tarim River Basin over the past 50 years are the focus of more and more researchers＇ attention. In this paper, both temperature and precipitation time series were found to present a monotonic increasing trend using nonparametric tests. Noticeably, a significant step change in both temperature and precipitation time series occurred in 1986. By contrasting the trends of natural water process in headstream and mainstream, we found that it was anthropogenic activities not climate change that caused the river dried up and vegetation degenerated in the lower reaches of Tarim River. The results of gray correlation analysis show that the runoff of higher latitude distributing river is more closely associated with winter snow stocking, while that of lower latitude is more closely related to summer temperature. Runoff in the headstream is more sensitive to precipitation, while that in the mainstream is more sensitive to evaporation. The strong evaporation caused by increasing temperature weakened runoff to some extent in spite of the fact that precipitation increased over the past 50 years.
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| 关 键 词： | 气候变化 水资源 非参数检验 水文过程响应 灵敏度 |
| 收稿时间： | 2005-07-20 |
| 修稿时间： | 2005-07-202006-01-16 |
Climate change and hydrologic process response in the Tarim River Basin over the past 50 years |
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| XU;Changchun;CHEN;Yaning;LI;Weihong;CHEN;Yapeng. Climate change and hydrologic process response in the Tarim River Basin over the past 50 years[J]. Chinese science bulletin, 2006, 51(A01): 25-36 |
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| Authors: | XU Changchun CHEN Yaning LI Weihong CHEN Yapeng |
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| Abstract: | ![]()
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| Keywords: | climate change water resources nonparametric test hydrologic process response sensitivity. |
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