土壤介电常数的多因素模型研究

发布时间：2018-03-07 19:35

  本文选题：介电常数　切入点：影响因素　出处：《江苏农业科学》2017年07期 　论文类型：期刊论文

【摘要】：利用LCR数字电桥测量仪及自制加持平行电极板,测量10、100、1 000 k Hz条件下土壤的相对介电常数与3种主要影响因素之间的变化规律。采用多元线性回归分析原理及模型,结合土壤相对介电常数的实测数据,运用SPSS软件对3种主要影响因素进行多元回归分析,得到了各因素与相对介电常数之间的相关关系及权重。结果表明,含水率、容重和温度与土壤相对介电常数显著相关(P0.05),其中含水率和温度与土壤相对介电常数极显著相关(P0.01);利用多元线性回归建立不同测试频率下土壤相对介电常数与含水率、容重、温度3因素的回归方程,且权重的大小顺序始终为容重温度含水率。
[Abstract]:The use of LCR digital measuring instrument bridge and self-made blessing parallel plate electrodes, the variation between the factors of relative dielectric constant of the soil and the 3 main influencing measurement of 10100,1 000 K Hz. Under the condition of regression analysis and principle of using multiple linear model, combined with soil relative dielectric constant of the measured data, using the SPSS software regression analysis on the factors the 3 main effects, the relationship between the various factors and the relative dielectric constant and weight. The results showed that the moisture content, temperature and bulk density were significantly correlated with the soil relative dielectric constant (P0.05), in which the temperature and soil moisture content and relative dielectric constant were significantly correlated (P0.01); different regression the test frequency of soil permittivity and moisture content, using the multiple linear regression equation of density, temperature of the 3 factors, and the weights of the order is always the temperature moisture content. Soil bulk density

【作者单位】： 塔里木大学信息工程学院;塔里木大学机械电气化工程学院;
【基金】：塔里木大学校长基金青年创新项目(编号:TDZKQN201608)
【分类号】：S151.9
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本文编号：1580692