半荒漠区土壤盐度指标换算关系研究  

Conversion Relationship of Salinity Indices of Salt-Affected Soils in Semi-Desert Areas

作　　者：刘旭[1] 迟春明[1] 

机构地区：[1]塔里木大学植物科学学院,新疆阿拉尔843300

出　　处：《安徽农业科学》2013年第28期11592-11594,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(41161037)

摘　　要：以78份土样数据对我国半荒漠地区土壤盐度指标的换算关系进行研究。结果表明,该区域土壤1∶5浸提液电导率(EC1∶5)与盐分摩尔总浓度(TEC1∶5)的换算关系为TEC1∶5=11.28×EC1∶5(r2=0.99,P<0.01),TEC1∶5与盐分质量总浓度(TDS1∶5)的关系方程为TDS1∶5=63.37×TEC1∶5(r2=0.99,P<0.01),由EC1∶5推算土壤全盐量(St)的经验方程为St=3.60×EC1∶5(r2=0.99,P<0.01)。Seventy-eight salt.affected soil samples in semi-desert areas were selected. Based on 1： 5 trical conductivity （EC1： 5 ）, total electrolyte Concentration （ TEC1：5 ）, total dissolved solids （ TDS1：5 ） The results showed that there were significant （r2 = 0. 99, P 〈 0.01 ） relationships between these TDS ：5 = 63.37 × TEC1：5 and S, =3.60 × EC1：5. Key words 1：5 soil-toLwater extract; Soil salt soil to water extract method, data of elee- and soil salt eontenv （St） were obtained. indices such as TECI：5 = 11.28 × EC1：5, TDS1：5 = 63.37 × TEC1：5 and S1 = 3.60 × EC1：5.

关 键 词：1:5浸提液 土壤全盐量 盐分摩尔总浓度 盐分质量总浓度 

分 类 号：S156.4[农业科学—土壤学]