蓄水坑灌条件下土壤水氮运移的研究进展  

Research Advances of Water and Nitrogen Transportation in Soil under Water Storage Pit Irrigation

作　　者：李京玲[1] 孙西欢[1] 马娟娟[1] 李建文[1] 

机构地区：[1]太原理工大学水利科学与工程学院,山西太原030024

出　　处：《节水灌溉》2012年第7期50-52,共3页Water Saving Irrigation

基　　金：国家自然科学基金资助项目(50979065)

摘　　要：为了提高蓄水坑灌条件下土壤水氮的利用率,减少由于灌施不当造成的资源浪费和环境污染,综述了蓄水坑灌土壤水分入渗过程中的变水头入渗、土壤水分分布特性、土壤水分蒸发特性、影响因素以及肥液入渗过程中氮素的分布特性和数值模拟等方面的研究进展和存在问题,提出了蓄水坑灌法今后应亟需加强的研究方向,为蓄水坑灌理论与技术的进一步研究奠定基础。In order to improve water and nitrogen use efficiency in soil under water storage pit irrigation and reduce resource waste and environmental pollution caused by unsuitable fertigation, this paper summarizes the advance and existing problem of research on varying-head infiltration, the soil water distribution characteristic, soil water evaporation characteristic, influence factors and nitro gen distribution characteristics of fertilizer solution infiltration and numerical simulation. Also, the future research direction about water storage pit irrigation is proposed, which lays some foundation for the further research in theory and technology.

关 键 词：蓄水坑灌 土壤水分 氮素迁移转化 

分 类 号：S275.9[农业科学—农业水土工程]