土壤水动力学参数及其影响因素研究进展  

Research Progress on Hydrodynamic Parameters and Its Affecting Factors

作　　者：杨欣坤 王宇[1] 赵兰坡[1] 张志丹[1] 

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《中国农学通报》2014年第3期38-43,共6页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金"松辽平原玉米带高产土壤的肥力特征及形成过程和机理研究"(31071862)

摘　　要：土壤水是作物生长所需要的直接水源,是农业生产的必要条件。研究土壤水的动力学参数及其影响因素,对于农业土壤的水分调控与高效利用、水土保持工程设计等具有重要指导意义。笔者在综述了国内外土壤水研究概况的基础上,重点论述了土壤水分常数、水分特征曲线、比水容量及饱和导水率等主要动力学参数及其影响因素的研究进展,明确了土壤孔隙度、质地、结构和有机质含量是土壤水动力学参数的主导影响因素,并提出了未来土壤水分研究的重点方向。As the direct water supply for the growth of plants, soil water is the necessary condition for agricultural production. Researching soil water’s hydrodynamic parameter and its affecting factors has instructive meaning for farmland soil water’s regulation and high-efficient utilization, as same as water and soil conservation and so on. Based on current research achievements on soil water home and abroad, the author especially discussed recently researching progress of some main hydrodynamic parameters, such as soil water constant, characteristic curve, soil moisture and so on. The author clarified the porosity, quality, instructor and levels of organic material in the soil are key elements of soil water’s hydrodynamic parameter. In this article, the author also showed opinion on what direction soil water’s research would incline to in the future.

关 键 词：土壤水 土壤水分常数 土壤水分特征曲线 

分 类 号：S152.74[农业科学—土壤学]