用pNa度量土壤碱化程度的初探  

Study on Measuring the Degree of Alkalized Soils with pNa

作　　者：陈丹[1] 李志洪[1] 金研星[1] 

机构地区：[1]吉林农业大学,长春130118

出　　处：《吉林农业大学学报》1997年第S1期67-70,共4页Journal of Jilin Agricultural University

摘　　要：研究了14个不同碱化土壤pNa值同pH、ESP、交换性Na、全盐量、总碱度、CEC之间的关系.结果表明,pNa与ESP等指标呈幂函数极显著负相关.pNa值可以用来度量土壤碱化程度,作为碱化土壤分类指标之一,也可使碱化土壤研究的测定方法简化.The relation was studied among the pNa, pH, exchangeable sodium, water-soluble sodium, total salt, total alkalinity and cation exchangeable capacity(CEC) in 14 alkalized soils. The results showed that the relations among the pNa, ESP and the others are significant negative power correlation. pNa can indirect the degree of alkalized soils and take as the indexes of alkalized soils classification.

关 键 词：PNA ESP 碱化土壤 相关性 

分 类 号：S156.4[农业科学—土壤学]