Based on 12 years（19942006） fields experiment, by analyzing the yearly variation of air temperature, soil temperature, moisture and salt and its statistic eigenvalue, the law of freezing-thawing soil water-heat-salt transfer under filed condition is the farther analyzed.
在12年（19942006年）田间试验的基础上,通过对多年冻融期间的气温、地温、水分和盐分之间的年际变化关系及其统计特征的分析,系统分析了自然条件下冻融土壤水热盐迁移规律。
参考来源 - 冻融土壤水热盐运移规律及其SHAW模型模拟研究·2,447,543篇论文数据，部分数据来源于NoteExpress
田间土壤水分、盐分和温度变化使水、盐、热耦合迁移的过程极其复杂。
The variation of soil water, salinity and temperature in the field makes the coupled transport processes of them very complicated.
土壤冻融特征曲线是反映土壤冻融过程中的水、热、盐迁移规律以及冻土强度、冻土的热性质的重要参数。
The characteristic curves of soil freezing and thawing reflect the strength, thermal properties and water and solute transport regularity.
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