Journal of Geographical Sciences >
Impact of climate change on the surface water of Kaidu River Basin
Received date: 2004-10-09
Revised date: 2004-11-27
Online published: 2005-03-25
Supported by
China Desert Meteorological Science Research Fund, No.SQJ2004014; The Special Fund for Commonweal Project of the Ministry of Science and Technology: Research on the Monitoring and Prediction of Snow Storm Disasters in Northern China Rangelands
To reveal the changing trend and annual distribution of the surface water hydrology and the local climate in the Bayanbuluk alpine-cold wetlands in the past 50 years, we used temperature, precipitation, different rank precipitation days, evaporation, water vapor pressure, relative humidity, dust storm days and snow depth to analyze their temporal variations. We conclude that there were no distinct changes in annual mean temperature, and no obvious changes in the maximum or minimum temperatures. Precipitation in warm season was the main water source in the wetlands of the study area and accounted for 92.0% of the annual total. Precipitation dropped to the lowest in the mid-1980s in the past 50 years and then increased gradually. The runoff of the Kaidu River has increased since 1987 which has a good linear response to the annual precipitation and mean temperature in Bayanbuluk alpine-cold wetland. Climate change also affected ecosystems in this area due to its direct relations to the surface water environment.
Key words： climate change; Kaidu River; surface water; wetland; Bayanbuluk
YANG Qing, CUI Caixia, . Impact of climate change on the surface water of Kaidu River Basin[J]. Journal of Geographical Sciences, 2005 , 15(1) : 20 -28 . DOI: 10.1360/gs050103
[1] Cui Caixia, 2001. Analysis of climate change and dust storms trend in recent 40a in Xinjiang. Meteorological Monthly, 27(12): 38-41. (in Chinese)
[2] Ding Yihui (ed.), 2002. Prediction of environmental change in western China. In: Qin Dahe, Assessment on Environment of Western China, Vol.2. Beijing: Science Press, 16-46. (in Chinese)
[3] He Qing, Yang Qing, Li Hongjun, 2003. Variations of air temperature, precipitation and sand dust weather in Xinjiang in past 40 years. Journal of Glaciology and Geocryology, 25(4): 423-427. (in Chinese)
[4] Li Zhongqin, Han Tianding, Jin Zhefan et al., 2003. A summary of 40 year observed variation facts of climate and Glacier No.1 at head water of Urumqi River, Tianshan, China. Journal of Glaciology and Geocryology, 25(2): 117-123. (in Chinese)
[5] Protection of China Wetlands, The Administrative Center for China's Agenda21.
[6] http://www.acca21.org.cn/news/2002/news02-01.html
[7] Prior Projects of China Wetlands Actions Plan. Protection and Rational Utilization of Bayanbuluk Wetlands Ecosystems in Xinjiang. http://www.wetland.gov.cn
[8] Yang Qing, Wei Wenshou, 2004. The climate change and the analysis on the trend in Xinjiang since recent 40 years. Proceedings of the Symposium on Climate Change and Ecological Environment. Beijing: China Meteorological Press, 202-209. (in Chinese)
[9] Zhang Baiping, Chen Xiaodong, Erdowletislamkhan et al., 2002. A study of the general development model for mountains in West China: taking the Bayanbulak region of the Mts. Tianshan as an example. Journal of Mountain Science, 20(4): 394-400. (in Chinese)
[10] Wang Run, Ernst Giese, Gao Qianzhao, 2003. The recent change of water level in the Bosten Lake and analysis of its causes. Journal of Glaciology and Geocryology, 25(1): 60-64. (in Chinese)
/
| 〈 |
|
〉 |