土层结构对毛细水上升高度和地下水蒸发影响的研究  

Research on Influence of Construction of Soil layer on Height of Capillary Water Upward Movement and Evaporation of Groundwater

作　　者：张平[1] 吴昊[1] 殷洪建[1] 李宝刚[1] 王海坤[1] 

机构地区：[1]沈阳大学建筑工程学院,辽宁沈阳110044

出　　处：《节水灌溉》2011年第3期6-8,共3页Water Saving Irrigation

基　　金：科技部资助项目(2006GB24160431)

摘　　要：通过观测成层性结构土毛细水上升高度和蒸发,研究土层结构对毛细水上升高度和地下水蒸发的影响,并对这些影响因素进行机理分析。研究结果表明,如果毛细水能透过下部土层迁移到上层,毛细水上升高度则由上层土性质所决定;土壤中夹层厚度如果大于该夹层土毛细水所能上升的最大高度,毛细水不能透过夹层迁移到上部土层参与蒸发。By observation on the height of capillary water upward movement and evaporation in layered structure soils,the effect of construction of soil on height of capillary water upward and groundwater evaporation is studied and these influencing factors are analyzed on mechanism.The results indicate that if capillary water can penetrate the lower layer soil and reach the upper bed,the height that the capillary water can reach is determined by the property of upper bed.If the interlayer thickness is bigger than the maximum height which the capillary water can reach in the interlayer,the capillary water can not penetrate the interlayer and reach the upper bed,it can not evaporate.

关 键 词：土层构造 毛细水 基模势 蒸发 

分 类 号：S152[农业科学—土壤学]