| 天气与气候 |
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| Climate Change and Its Impact on Land Desertification in Northwestern Shanxi Province |
| MA Yi-juan1, QIAN Jin-xia2, SU Zhi-zhu3 |
| 1.Taiyuan Normal University, Taiyuan 030012, China; 2.Shanxi Meteorological Service Center for Decision Making, Taiyuan 030006, China; 3.College of Tourism Shanxi University, Taiyuan 030006, China |
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Abstract Based on data of monthly temperature and precipitation from 5 representative meteorological stations in northwestern Shanxi province during the period of 1957—2006, the series of average temperature and precipitation of the whole year, winter half year and summer half year were established, and the changing features of temperature and precipitation and their impact on land desertification were analyzed. Results showed that climate tends to become warmer and arider in the area. The linear trend rates of average temperature for the whole year, winter half year and summer half year were 0.202 ℃/(10a), 0.2 ℃/(10a) and 0.132 ℃/(10a), respectively; It had gradual and periodical features for average temperature in the summer half year. The linear trend rates of precipitation for the whole year, winter half year and summer half year were -16.68 mm/(10a), 0.404 mm/(10a) and -14.95 mm/(10a), respectively. The reduction of annual precipitation resulted mainly from reduction of precipitation in summer; precipitation in winter increased in comparison with that in summer. The condition of precipitation reduces in summer and increases in winter can certainly slow the process of land desertification.
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Received: 03 May 2011
Published: 20 November 2011
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2011, Vol. 31 
