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[1]ZHANG Rui-fang,FAN Hao-ming,WANG Xuan,et al.Climatic Environmental Condition of the Freeze-thaw Erosion in Liaoning Province[J].Research of Soil and Water Conservation,2008,15(02):8-12.

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Climatic Environmental Condition of the Freeze-thaw Erosion in Liaoning Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 15 Number of periods: 2008 02 Page number: 8-12 Column: Public date: 2008-04-20

Title:: Climatic Environmental Condition of the Freeze-thaw Erosion in Liaoning Province

Author(s):: ZHANG Rui-fang, FAN Hao-ming, WANG Xuan, ZHOU Li-li, Wu Min, LIU Yan-hua; College of Water Conservancy, Shenyang Agriculture University, Shenyang 110161, China

Keywords:: environmental condition; freeze-thaw erosion; Liaoning Province

CLC:: S157

DOI:: -

Abstract:: In this paper,the material of temperature and precipitation in Liaoning province during the period of 1961-2006 was used to analyze the impact of the variation of temperature and precipitation on the freeze-thaw function and freeze-thaw erosion.The results show that the annual mean temperature has increased distinctly,together with a decreasing precipitation.Temperature mainly rises in spring and winter,especially from February to April.Meanwhile,in the area,the variation of precipitation in winter is stable,while other seasons all have decreased respectively.With the variation of temperature and precipitation in Liaoning province,the frozen date of soil has a postponed trend and the thaw date of soil has an advanced trend.Therefore,the frozen duration of soil become short and the thaw duration of soil also become short.In addition,the decreasing of the frozen soil depth is in accordance with the climate change.With the rising of air temperature in the spring(rising of the air temperature in March),the freeze-thaw erosion has an aggravated trend.

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