吉林省大安市苏打碱土碱化参数之间的关系

Interrelationship between the Primary Alkalization Parameters of Sodic Soil in the Da'an City,Jilin Province,China

选择典型苏打碱化土壤,对土壤碱化度(ESP)、钠吸附比(SAR)、残余碳酸钠(RSC)、总碱度和pH等进行了测定计算,分析了各碱化参数之间的关系,得出了各参数之间的相关方程。结果表明,除pH外,苏打碱土各碱化参数之间均具有极显著的相关性,各参数之间关系密切。土壤pH与ESP和SAR之间的关系变异性较大,利用pH推算该区苏打碱土碱化状况将会产生很大的不确定性。

Interrelationships between primary alkalization parameters including exchange sodium percentage （ESP）, sodium adsorption ratio （SAR）, total alkalinity, residual sodium carbonate （RSC） and pH of sodic soil in the Da＇an City were analyzed. Results show ： （ 1 ） Correlations between these alkalization parameters are very significant except for the parameter pH. （2） Correlations between soil pH and ESP, SAR are not significant, and therefore relafionships between soil pH and ESP, SAR are indeterminate, For the sodic soil in experimental area, soil pH can＇t reflect soil degree of alkalisation well.