烟台高新区沿海土壤理化分析
Analysis on Physical and Chemical Properties of Coastal Soil in Yantai Hi-tech Zone
刘文光 1李云芝 1刘惠芬 1衣葵花 1郭洪恩1
作者信息
- 1. 山东省蚕业研究所,山东烟台 264002
- 折叠
摘要
为给沿海区土壤高效、合理地利用与管理提供参考依据,针对烟台高新区沿海土壤理化性质进行分析.结果表明:烟台高新区土壤pH均在6.3~7.0,呈弱酸性到中性;全盐量在0.049%~0.460%,大部分土壤样品全盐量小于0.200%,属于轻度盐渍化;全盐量(Y)与电导率(X)的二次曲线回归方程:Y=0.052X2+0.186X+0.048,两者决定系数R2=0.999,根据二次曲线方程用电导率值计算所得的土壤全盐量与质量法实测的全盐量之间的相对误差多在5%以下;钠离子含量是钾离子的2~10倍,经SPSS 20.0相关性分析,钾、钠离子含量及两者总量与全盐量之间均呈现极显著正相关.
Abstract
In order to provide a reference for the efficient and rational use and management of soil in the coastal area,the physical and chemical properties of soil in Yantai Hi-tech Zone were analyzed.The results showed: the soil pH value of Yantai high-tech zone was between 6.3 and 7.0,which was weak acid to neutral;the total soil soluble salt was between 0.049% and 0.460%,and the total soil soluble salt of most soil samples was less than 0.200%,which belonged to the slightly salted soil;The curve equation between the total soil soluble salt(Y) and the soil electrical conductivity(X) was the quadratic curve equation:Y=0.052X2+0.186X+0.048,the R2 of the power curve equation was 0.999,the relative error between the total soil soluble salt calculated from the soil electrical conductivity according to the quadratic curve equation and the total soil soluble salt measured by the mass method was less than 5%;Content of sodium ions was 2 to 10 times the potassium ion content, the SPSS 20.0 correlation analysis showed that the content of potassium and sodium ions and the total amount of two ions showed a significant positive correlation with the total salt content.
关键词
土壤/pH/全盐量/电导率/离子含量Key words
Soil/pH value/Total salt content/Electrical conductivity/Ion content引用本文复制引用
基金项目
山东省农业科学院农业科技创新工程(CXGC2016B10)
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据