摘要
土壤盐渍化是目前众多交叉学科研究的一个热点问题,涉及到土壤学、环境科学、岩土工程等学科知识.科学认识土壤中水盐迁移模式及运移机理,对农业工程治理土壤盐渍化以及路基工程预防路基盐渍化具有重要意义.介绍了国内外农业工程领域比较认同的水分迁移模式(毛细管作用假说、薄膜水迁移理论、结晶力理论与吸附—薄膜理论)、盐渍土离子迁移方式(渗流迁移、扩散迁移与渗流—扩散混合迁移)与土壤中水-热、水-盐、水-热-盐运移机理与模型,以及公路工程领域相关的研究进展,并对相关模型原理、异同点、优缺点、适用性及应用状况进行了分析评价.
Soil salinization is one hot issue of numerous interdisciplinary research which involves soil science, environmental science and geotechnical engineering, etc. Scientific understanding of water-salt migration model and mechanism in soil has a great signification for solving soii salinity in agricultural engineering and preventing subgrade salinization in subgrade engineering. Water migra- tion model （capillarity force hypothesis, film water migration hypothesis, crystallization force hypothesis and adsorption-film capillarity）, migration mode of ions in saline soil （seepage flow migration, diffusive migration and seepage-diffusive migration） and water-heat, water-salt, water- heat-salt migration model and mechanism in soil are introduced. And the research progress in the area of road engineering is also introduced. Then, principle, similarities and differences, advantages and disadvantages, applicability and application status of correlation model are analyzed and evaluated.
出处
《内蒙古大学学报（自然科学版）》
CAS
北大核心
2017年第1期106-111,共6页
Journal of Inner Mongolia University：Natural Science Edition
基金
国家自然科学基金(51468047)
内蒙古自然科学基金面上项目(2015MS523
2016MS0531)
内蒙古交通运输厅交通科技项目(NJ2012-10)
关键词
土壤
盐渍化
运移机理
模型
soil
salinization
migration mechanism
model
