中文摘要：

采集具有次生盐渍化特征的大棚土壤,对土壤浸提液电导率和盐分化学性质进行相关性分析。结果表明,土壤浸提液总盐含量（SSC）、Clˉ和Ca^2＋是影响土壤浸提液电导率的主要因素,NO3ˉ、K^＋和Na^＋对土壤浸提液电导率直接效应并不明显,而主要通过其它各化学性质要素的影响产生间接效应,使其与土壤浸提液电导率间仍有较大的相关系数;土壤浸提液离子强度与其电导率亦显著相关,并可表示为I=0.0176EC。

英文摘要：

Relationship between electrical conductivity and chemical properties with characteristics of soil salt accumulation of soil extract （EC5：1） in plastic greenhouse were sudied. The results indicated that the total soluble salt concentration（SSC） ,Clˉand Ca^2＋ ions were the primary factors of EC2, 1. The direct effect of NO3ˉ, K^＋ and Na^＋ on EC5：1 was not significant, but they were enhanced by the influence of other chemical factors with relatively high correlation coefficients between EC5：1 and these factors. The ionic strength was significantly correlated with EC5： 1 which could be estimated by I=0. 017 6EC.