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冻融土水盐运动的研究对于揭示河套灌区次生盐渍化发生发展的规律、寻求调控土壤水盐动态的措施,促进农业生产十分重要。由于土壤冻结和消融过程中的水、热、溶质的互相作用和迁移十分复杂,因此也是国内外学术界十分关注的问题。内蒙水科所在巴音试验场和所内实验室,从1981年至1986年对河套灌区冻融土的水盐运动规律开展了研究。通过六年的试验研究,提出了土壤冻结深度和负积温(气温)的定量关系及经验表达式;为进行水盐动态分析,将土壤
The study of water and salt movement in frozen-thawed soil is of great importance to reveal the occurrence and development of secondary salinization in Hetao Irrigation District and to seek measures to control soil water and salinity dynamics and promote agricultural production. Due to the complexity of interaction and migration of water, heat and solute in soil freezing and thawing process, it is also a very important issue in academia at home and abroad. Nei Mengshui Institute of Bayin test site and the laboratory, from 1981 to 1986 on the Hetao irrigation freeze-thaw soil water and salt movement carried out a study. Through six years of experimental research, the quantitative relationships between soil freezing depth and negative accumulated temperature (temperature) and empirical expressions were proposed. For the dynamic analysis of water and salt, soil