沧州泥质海岸土壤含盐量与电导率关系

Cangzhou Muddy Coast of Soil Salt Content and Electric Conductivity

摘要: 为了得出沧州泥质海岸土壤含盐量与电导率的关系，抽样调查河北省沧州市泥质海岸土壤含盐量，采用烘干残渣法和电率法测样本土壤含盐量，测定出的土壤拟合含盐量和残渣含盐量做对比并建立电导率与残渣之间拟合模型y = 3.2186x + 50.755、R2 = 0.9968并检验拟合模型的准确性。为了检验拟合模型y = 3.2186x + 50.755、R2 = 0.9968是否对其他地区有参考价值，与以前经验公式对比。结果证明：沧州泥质海岸土壤含盐量率的拟合模型为：y = 3.2186x + 50.755, R2 = 0.996，在一定范围内，公式求算的含盐量与烘干残渣法的平均误差为−0.30114，可以在沧州地区使用。经过对经验公的对比及分析，发现该拟合关系式对盐渍区均有很大的参考价值。

Abstract: To arrive at Cangzhou muddy coast the relationship between soil salt content and electric conduc-tivity, off the coast of Hebei Cangzhou argillaceous soil salinity of sampling, sample drying residue method and electric rate method is used to test the soil salt content, determine the residue of soil salt content and salt content compare and established between electrical conductivity and residue fitting model y = 3.2186x + 50.755, R2 = 50.755 and verify the accuracy of the fitting model. To test the fitting model y =3.2186x + 50.755, R2 = 50.755 whether has reference value to other regions, compared with previous empirical formula. Results show that: Cangzhou muddy coast fitting model of soil salt content rate are as follows: y = 3.2186x + 50.755, R2 = 0.996, within a certain range, the formula to calculate the salinity and drying residue method’s average error is 0.30114, can be used in Cangzhou region. After % through comparison and analysis of the experience and, found that the fitting relation of saline area all have great reference value.