排灌机械工程学报2016，Vol.34Issue(3)：251-259,264,10.DOI:10.3969/j.issn.1674-8530.15.0145
土壤水分再分布特性研究进展
Progress in research on soil water redistribution
摘要
Abstract
Soil water redistribution has significant effects on local ecosystem and agriculture in arid and semi-arid farmlands in the Loess Plateau.In a redistribution process,soil water moves in unsaturated soil under the potential gradient.The theories and models in soil water redistribution achived in home and abroad from point of view of both physics and biology were reviewed and summarized.It is found out that the progress is mainly affected by cultivation measures,rainfall intensity,initial moisture con-tent and irrigation method from point of view of physics.The developed mathematical models based on soil water characteristic curve and its hysteresis,soil water flux method,and soil water motion equa-tions are clarified.It is also identified that the soil water redistribution can effectively regulate soil moisture condition in root layer and enrich community structure and improve soil nutrient;but the process can be influenced by soil moisture,species and soil properties.Through the review of past re-search in this field,we clarify the research present situation and also propose some constructive opi-nions for the further study of the theory.关键词
土壤水分再分布/影响因素/基本理论/分布模型/根土界面Key words
soil water redistributions/influence factor/basic theory/distribution models/soil root interface zone分类
农业科技引用本文复制引用
金世杰,费良军,傅渝亮..土壤水分再分布特性研究进展[J].排灌机械工程学报,2016,34(3):251-259,264,10.基金项目
国家自然科学基金资助项目（51479161，51279157）；农业部公益性行业（农业）科研专项 （）
