| 李彬,王志春,迟春明.吉林省大安市苏打碱土含盐量与电导率的关系[J].干旱地区农业研究,2006,(4):168~171 |
| 吉林省大安市苏打碱土含盐量与电导率的关系 |
| The relationship between salt content and electric conductivity of soda solonetz in Da’an City |
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| DOI：10.7606/j.issn.1000-7601.2006.04.36 |
| 中文关键词: 苏打碱土 含盐量 电导率 大安市 |
| 英文关键词:soda solonetz salt content electrical conductivity Da'an City |
| 基金项目:中国科学院知识创新工程项目(KZCX1-SW-19-5-01)； 东北地理所领域前沿项目(KZCX3-SW-NA-06) |
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| 中文摘要: |
| 分别测定了吉林省大安市苏打碱土含盐量与电导率以及地下水含盐量与电导率,分析了含盐量与电导率的关系。结果表明,土壤含盐量与电导率、地下水含盐量与电导率之间具有良好的线性相关性,土壤浸出液电导率(y)与土壤含盐量(x)之间的回归方程为:y=0.201+0.092x(r=0.991,n=50,p<0.0001);地下水电导率(y)与含盐量(x)之间的回归方程为:y=-0.393+1.523x(r=0.997,n=18,p<0.0001)。利用方程计算的土壤含盐量与实测值之间符合较好,相对误差大多在7%以下;根据电导率计算的地下水含盐量与实际测量值之间的相对误差一般在5%以下。说明在数据统计分析基础上建立的这两个经验公式适用性较好,可以用于该区苏打碱土土壤及地下水电导率与含盐量之间的换算。 |
| 英文摘要: |
| Based on the measurement of salt content and electrical conductivity in soda solonetz soil as well as in groundwater in Da'an City,Jilin Province,the relationship between the salt content and electric conductivity was determined.The results show: 1) Both the EC of soil extract and groundwater were linearly related to their respective salt contents.2) The regression equation between the electrical conductivity(y) and the soil salt content(g/kg) (x) was y=0.201+0.092x (r=0.991,n=50,p<0.0001).3) The regression equation between the electrical conductivity(y) and the salt content(g/L)(x) of groundwater was y=-0.393+(1.523)x(r=0.997,n=18,p<0.0001).4) The soil salt content calculated based on the electrical conductivity agreed well with the measured values,and the relative error was less than 7% mostly.5) The relative error of the salt content calculated based on the electrical conductivity to the actual salt content of ground water was less than 5% generally.It was concluded that the regression equations based on statistical analysis could be used to estimate the electrical conductivity and salt content of soda solonetz. |
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