“soil electrical conductivity”的概念、定义、翻译、参考文献-科学参考

单词	soil electrical conductivity
释义	soil electrical conductivity Encyclopedia 农学土壤电导释 soil electrical conductivity土壤电导由土壤溶液中的盐分引起的电导。电导率用来描述物质中电荷流动难易程度的参数。由于土粒和离子都能导电，土壤电导是两者的综合表现。前者称为胶粒电导，后者称为离子电导。胶体电导是悬液电导与自由溶液电导之差。不含游离电解质的胶体的电导与胶粒电导之差，称为表面电导，是双电层总的离子对胶体电导的贡献。
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