Electric conductivity (. EC )、 Sodium Adsorption Ratio(SAR) ( SAR ), sodium, chloride, bicarbonate and sulphate increase variously in soils irrigated by treated water, the extent of variation is influenced by water quality and irrigation time. 实地调查发现,电导率(EC)、钠吸附比(SAR)(SAR)、碱化度(ESP)、氯化物、碳酸氢盐、硫酸盐等在再生水灌溉土壤中均有增加,增加程度和灌溉水质及灌溉年限有关。
Correlations between soil salt content and alkalization parameters including exchange sodium percentage ( ESP ), sodium adsorption ratio ( SAR ), total alkalinity, residual sodium carbonate ( RSC ) and pH are all significant. 土壤含盐量与各碱化参数(ESP、SAR、总碱度、RSC和pH)均为正相关。
Sodium adsorption ratio and its application to appraisement of alkali characteristics of water 钠吸附比(SAR)及其在水体碱化特征评价中的应用