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充分供水条件下点源入渗特性及其影响因素
Infiltration Character and Influential Factor of Point SourceUnder Adequate Water Supply
【摘要】 通过大量充分供水点源入渗试验资料,分析了充分供水条件下点源入渗特性及其影响因素,研究了点源面积、土壤质地、土壤初始含水量及容重等因素对点源入渗的影响,在此基础上,探讨了充分供水单点源入渗的湿润体形状及其湿润锋运移规律。这些研究成果为进一步研究点源入渗和膜上灌技术奠定了基础。
【Abstract】 Using the experiment data,the infiltration character and main influential factors of point source under adequate water supply were analysed, the main influential factors such as soil texture, antecedent soil moisture, soil density and area of point source are researched, on the basis of these, the movement law of surface wetting peak and shape of wetted soil are discussed. These research results have laid a foundation for further research of point source infiltration and film hole irrigation.
【关键词】 充分供水;
点源入渗特性;
影响因素;
湿润体形状;
【Key words】 adequate water supply; point source infiltration character; influential factor; shape of wetting soil;
【Key words】 adequate water supply; point source infiltration character; influential factor; shape of wetting soil;
【基金】 国家自然科学基金
- 【文献出处】 土壤侵蚀与水土保持学报 , 编辑部邮箱 ,1999年02期
- 【分类号】S152.72
- 【被引频次】122
- 【下载频次】379