土壤构造对毛细管水上升影响的研究  

Effect of Constitution of Soil on Upward Movement of Capillary Water

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,沈阳110044

出　　处：《水土保持研究》2011年第4期265-267,共3页Research of Soil and Water Conservation

基　　金：科技部资助项目"重大农业气象灾害对农业的影响研究"(2006BAD04B09)

摘　　要：研究土壤构造对毛细管水上升的影响及变化规律。通过观测并分析不同构造的土壤其毛细管水上升速度和高度,成层性构造土壤,当下部土壤层厚度小于该层毛细管水上升最大高度,毛细管水上升的最终高度取决于上部土壤层的性质;上部土壤层颗粒愈细,含水量愈大,毛细管水上升速度越慢,若上部绝对隔水,毛细管水不上升。The effect and changing regularity of constitution of soil on upward capillary water was studied in this paper.Capillary water in differences constitution of soil upward velocity and height was observed and analyzed.In soil layers,the low-story thickness is smaller than the height of the capillary water to reach the maximum height of the layer,the height of the capillary water to reach the final height will be concluded by upper-bed soil feature.When particles of the upper-bed soil are thinner and moisture content of the upper-bed soil is bigger,the consequence will lower the velocity of upward capillary water.When upper-bed is water-resisting layer,the capillary water cannot move upward.

关 键 词：土壤构造 毛细管水 土壤层 渗透系数 

分 类 号：S152.7[农业科学—土壤学]