| 干旱寒冷地区冻融期土壤水分和盐分的时空变异分析 |
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| 引用本文： | 李瑞平,史海滨,付小军,李正中.干旱寒冷地区冻融期土壤水分和盐分的时空变异分析[J].灌溉排水学报,2012(1):86-90. |
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| 作者姓名： | 李瑞平 史海滨 付小军 李正中 |
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| 作者单位： | 内蒙古农业大学水利与土木建筑工程学院;内蒙古河套灌区解放闸管理局沙壕渠试验站 |
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| 基金项目： | 农业科技成果转化资金项目(2010A40060873);内蒙古农业大学科技创新团队基金(NDTD2010-7);内蒙古自然科学基金项目(2011BS0301) |
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| 摘 要： | 在我国西北干旱、寒冷地区,降雨稀少、土壤蒸发强烈、土壤母质含盐、地下水位较高,冻融作用是土壤盐碱化独特的形成机制。利用经典统计分析方法对内蒙古河套灌区1994—2006年度冻融期不同土层(0～200cm)水分、盐分的均值、方差、标准差、峰度、偏度、变异系数等统计特征值进行计算,分析其时间、空间变异特征。
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| 关 键 词： | 冻融土壤 土壤水盐 统计分析 |
Temporal and Spatial Variation Analysis of Freezing Thawing Soil Moisture and Salinity on Arid and Cold Region |
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| LI Rui-ping,SHI Hai-bin,FU Xiao-jun,LI Zheng-zhong.Temporal and Spatial Variation Analysis of Freezing Thawing Soil Moisture and Salinity on Arid and Cold Region[J].Journal of Irrigation and Drainage,2012(1):86-90. |
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| Authors: | LI Rui-ping SHI Hai-bin FU Xiao-jun LI Zheng-zhong |
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| Institution: | 1.College of Water Conservation and Civil Engineering, Inner Mongolia Agricultural University,Huhhot 010018,China; 2.Inner Mongolia Hetao Irrigation Region Jiefangzha Department,Hangjin Houqi 015400,China) |
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| Abstract: | Freeze and thaw action is a particular mechanism of soil salinization in the northwestern arid and cold area with rare precipitation,high potential evaporation,shallow groundwater table and high mineral concentration.Using classical statistical analysis method,different soil layer(0~200 cm) moisture and salt mean,variance,standard deviation,kurtosis,skewness,coefficient of variation was calculated and temporal and spatial variation characteristics was analyzed in Inner Mongolia Hetao irrigation during 1994—2006 year freeze thawing period. |
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| Keywords: | freezing-thawing soil water-salt characteristics statistical analysis |
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