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通过测量土壤电导率(Eca)来确定田间土壤含盐量的方法,由于证实了它的实用性和有效性以及所用仪器的改进,因而得到了公认。Rhoades等(1976)发展和证实了测量的原理,并提出了精确而简便的校准土壤含盐量与土壤电导率测定的方法。现在这种方法已成功地在测量、绘图、监测田间含盐量和地下水位深度以及探测盐分渗出的侵入等方面得到应用,这种方法已可推荐用于土壤含盐量的诊断。
The method of determining the salinity of soil in the field by measuring soil conductivity (Eca) has been well-established because of its utility and effectiveness as well as the instrumentation used to improve it. Rhoades et al. (1976) developed and validated the principle of measurement and proposed an accurate and simple method for the calibration of soil salinity and soil conductivity. Now this method has been successfully applied in the fields of measuring, mapping, monitoring the salinity of the ground and the depth of the groundwater table, as well as detecting the invasion of salt exudation. This method has been recommended for the diagnosis of soil salinity.