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Spatial and Seasonal Variability of Soil Water in Road Slopes
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AN Gui-xiang1,2,3,ZENG Fan-jiang1,SUN Xu-wei1,LIU Bo1,LIU Zhen1,ZHANG Xiao-lei1,3(1.Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi,Xinjiang 830011,China,2.Graduate University of the Chinese Academy of Sciences,Beijing 100049,3.Cele National Field Science Observation and Research Station of Desert Grassland Ecosystem,Xinjiang 848300,China)

Clc Number:

S152.7

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    Abstract:

    The research objects of this study are the railway slopes which were treated with pressure spraying in the construction of Suiming-Chongqing railway.The variations of soil water of the road-slopes were monitored in different slope positions,various slope aspects during four seas-ons.The results show that soil water content peaked at the upper slope position in October,as high as 18.3%.For the other three seasons, the water contents were significant higher at the foot slope than at the upper and middle slopes.No significant difference of soil water were found among four slope aspects in January and October,while in April and July,soil water contents on shady slopes were significant higher than those on the sunny slopes.Soil water contents peaked in October on all the three slope positions.On all four slope aspects,soil water contents in January and October were significantly higher than those in April and July.Significant relationships were identified between soil moisture contents of different slope positions,slope aspects and seasons,except that soil moisture on foot slopes were affected by season changes only.All relationships were positive except between seasonal variations and slope aspects.Seasonal variations of soil moisture were related closely with slope positions rather than with slope aspects.

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答竹君,艾应伟,宋婷,郭培俊,王倩,李伟.道路边坡土壤水分空间和季节变异性分析[J].水土保持通报英文版,2011,(1):72-75

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History
  • Received:May 27,2010
  • Revised:August 05,2010
  • Online: October 25,2012

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