| 天气与气候 |
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| Spatial-Temporal Variation of the Precipitation in Xinjiang and its Abrupt Change in Recent 50 Years |
| ZHANG Sheng-jun1, WANG Tian-ming1, WANG Tao 2, L Ai-gang 3, GE Jiang-ping1 |
| 1.Centre for Landscape Ecology and Sustainability Science, Beijing Normal University, Beijing 100875, China; 2.Collegeof Resources and Environment Science, Xinjiang University, Urumqi 830046, China; 3.Department of Environment and Life Sciences, Weinan Teachers University, Weinan 714000, Shaanxi, China |
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Abstract The spatial-temporal variation of the annual and monthly precipitation and the abrupt change of the annual precipitation were analyzed with Mann-Kendall trend test and sequential Mann-Kendall test based on monthly precipitation data of 53 climatic stations from 1960 to 2005. The results indicated: (1) The precipitation significantly increased in recent 50 years, especially in Northern and Southern part of Xinjiang. (2) The precipitation increased remarkably in January, February, November and December, contributing more to the total annual precipitation. (3) The abrupt changes of the annual precipitation for the most of 27 stations took place after 1980s. Over all, a abrupt change in the trend of the annual precipitation for the whole study area took place in 1986.
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Received: 08 August 2009
Published: 20 May 2010
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2010, Vol. 30 
