华北农学报 ›› 2001, Vol. 16 ›› Issue (2): 75-82. doi: 10.3321/j.issn:1000-7091.2001.02.015

所属专题: 土壤肥料

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太行山前平原土壤水分特征曲线拟合参数的确定

张喜英1, 张橹2, 刘昌明1   

  1. 1. 中国科学院石家庄农业现代化研究所, 河北石家庄 050021;
    2. 澳大利亚科工组织水土资源研究所, CANBERRA, ACT2601
  • 收稿日期:1999-07-22 出版日期:2001-06-28
  • 作者简介:张喜英(1965- ),女,研究员,主要从事节水农业的研究工作。
  • 基金资助:
    中国科学院与澳大利亚ACIAR合作项目(LWR1/95/07)支持

On Describing the Hydraulic Properties of Unsaturated Soil in Piedmont of Mt.Taihang

ZHANG Xiying1, ZHANG Lu2, LIU Changming1   

  1. 1. Shijiazhuang Institute of Agricultural Modernization, CAS, shijiazhuang 050021, China;
    2. CSIRO Land and Water, Canberra, Australia,Beijing 100032, China;
    3. Crop Institute, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100089, China
  • Received:1999-07-22 Published:2001-06-28

摘要: 本文分别用BrooksandCorey,vanGenuchten和Broadbridge-White模型拟合了太行山山前平原不同层次土壤水分特征曲线(SWC),并用Mualem和Burdine模型计算了土壤非饱和导水率(K)和扩散率(D)。最能较好计算实验地点D和K的方法是用vanGenuchten模型拟和SWC(约束条件m=1-2/n),用Burdine方法计算K和D。

关键词: 土壤水分特征曲线, 模型, 拟合

Abstract: Seven sets of data from the piedmont of Mt. T aihang were used to evaluate three widely used equations: Brooks & Corey, van Genuchten and Broadbridge-White, on the descript ion of soil retention curves. The results showed that the all three equationsg ave relative good description of water content and water potent ial, but there were discrepancies betw een calculated K and D from the retention curves using Burdine and Mualem analy tical functions and the measured K and D values1The best model for calculation of K and D at the sampling site is using van Genuchten equation to describe the retent ion curves with the condition of m= 1-2/ n, then using Burdine analytical function to calculate K and D.

Key words: Model, Soil water retention curve, Parameters

中图分类号: 

引用本文

张喜英, 张橹, 刘昌明. 太行山前平原土壤水分特征曲线拟合参数的确定[J]. 华北农学报, 2001, 16(2): 75-82. doi: 10.3321/j.issn:1000-7091.2001.02.015.

ZHANG Xiying, ZHANG Lu, LIU Changming. On Describing the Hydraulic Properties of Unsaturated Soil in Piedmont of Mt.Taihang[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(2): 75-82. doi: 10.3321/j.issn:1000-7091.2001.02.015.

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