封丘地区土壤传递函数的研究
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* 国家重点基础研究发展规划项目(G1999011803);ACIAR项目(LWR1/96/164)资助


STUDY ON PEDO-TRANSFER FUNCTION IN FENGQIU
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    摘要:

    以黄淮海平原封丘地区的潮土和风沙土为研究对象,试图寻求解决土壤水动力学特性参数问题的更加实用可行的方法。根据大量的土壤基本物理性质和土壤持水数据,利用多元逐步回归分析方法,分别建立了van Genuchten模型的参数θr、θsa、n的土壤传递函数模型,并通过统计分析和数学模拟进行模型验证。研究结果表明,van Genuchten模型参数与土壤的质地、有机质含量及容重等基本物理性质有一定的线性相关性。van Genuchten模型的参数估计模型对粘性土壤的拟合效果较好,而拟合砂性土壤时误差较大。

    Abstract:

    In this paper,we have studied the fluvo-aqic and eolian sandy soil in Fengqiu County,Huanghuaihai plain area and tried to find the practical and feasible ways to solve problems of the parameter of soil hydraulic properties.Based on a great many of fundamental soil physical properties and soil water-retention data in Fengqiu county,pedo-transfer function models of van Genuchten model parameters(θrs,a, n)were established by the use of multivariate stepwise regression analysis respectively and verified by means of statistics analysis and numerical simulation.The results showed that parameters of van Genuchten model had some linear correlation with basic soil physical properties.The fitted effect of parameter est imation model of van Genuchten model on clay soil was very well but the effect on sandy soil was not good because of big errors.

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朱安宁,张佳宝,陈效民,陈德立.封丘地区土壤传递函数的研究[J].土壤学报,2003,40(1):53-58. DOI:10.11766/trxb200012280107 Zhu An-ning, Zhang Jia-bao, Chen Xiao-min, Chen De-li. STUDY ON PEDO-TRANSFER FUNCTION IN FENGQIU[J]. Acta Pedologica Sinica,2003,40(1):53-58.

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  • 收稿日期:2000-12-28
  • 最后修改日期:2002-03-24
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  • 在线发布日期: 2013-02-25
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