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间歇供水条件下考虑土壤水滞后作用的水分入渗数值模拟 被引量:1

Numerical Simulation of Soil Infiltration Considering the Effect of Hysteresis under Intermittent Water Application
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摘要 本文对间歇供水条件下土壤入渗过程进行了试验研究,采用数值模拟方法描述了考虑土壤水滞后的水分入渗过程。结果表明文中使用的确定性模型虽能较好地模拟土壤水分状况改变对入渗率的影响,却无法反映表层土壤物理性能变化对入渗的作用。当利用一维垂向非饱和土壤水运动模型来描述间歇供水条件下的土壤入渗分布过程时,应改进模拟技术使之能包容后者的影响。 A laboratory experiment on columns of disturbed soil was conducted to describe the distribution of soil intake under intermittent water application and the process of surface soil infiltration considering tile effect of hysteresis was modeled by means of numerical simulation technique. The results indicate that although the deterministic model employed in the paper can be used to simulate fairly the effect of changes of soil moisture on infiltration rates,but not for the influence of changes of surface soil physical characteristics as affected by intermittent saturating and draining of soil columns on infiltration for this reason,an improvement to simulation technique would be necessary to solve the problem mentioned above.
出处 《灌溉排水》 CSCD 1996年第2期8-13,共6页 Irrigation and Drainage
关键词 间歇供水 水分滞后 数值模拟 入渗率 畦灌 Intermittent water applicateon Hysteresis Numerical simulation Infiltrationrate Dryin wetling
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同被引文献13

  • 1郭庆荣,张秉刚.土壤水分有效性研究综述[J].热带亚热带土壤科学,1995,4(2):119-124. 被引量:18
  • 2张玉龙,庄杰,刘鸣达.田间持水量含水状态下土水势的研究[J].沈阳农业大学学报,1996,27(2):154-157. 被引量:21
  • 3Scott H D.Soil Physics:agricultural and environmental applications[M].Iowa:Iowa State University Press,2000:350-352. 被引量:1
  • 4Alway F L,McDole G R.Relation of the water-retaining capacity of a soil to its hygroscopic coefficient[J].J.Agr.Res.,1917,9:27-71. 被引量:1
  • 5Veihmeyer F J.Some factors affecting the irrigation requirements of deciduous orchards[J].Hilgardia,1927,2:125-290. 被引量:1
  • 6Veihmeyer F J,Hendrickson A H.The relation of soil moisture to cultivation and plant growth[C].Proceeding and Papers of the First International Congress of Soil Science,1928,3:498-513. 被引量:1
  • 7Hillel D.Environmental Soil Physics[M].New York:Academic Press,1998:464-468. 被引量:1
  • 8Richards L A.Advances in soil physics[C]."Trans.7th Int.Congr.Soil Sci.," Madison,WI,1960,1:67-69. 被引量:1
  • 9Hillel D,C H M van Bavel.Dependence of profile water storage on soil hydraulic properties:A simulation model[J].Soil Sci.Soc.Am.J.,1976,40:807-815. 被引量:1
  • 10Colman E A.A laboratory procedure for determining the field capacity of soils[J].Soil Sci.,1947,63:277-283. 被引量:1

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