摘要
本文根据80年代以来,在新疆科研工作积累的苏打盐渍土大量剖面资料,应用主组元分析方法,对苏打盐渍土分级,取得了主组元方程。提出了新疆苏打盐渍土分级的主要性质指标。这有利于确定苏打盐渍土改良的难易程度,为苏打盐渍土分级实现指标化和数量化提供依据。
This paper deals with the elassification of the 52 fypical probiles of soda sa line soils data got in Xinjiang in 80's ly means of pricipal component analysis. The resulls showed that the soils could be distinguished into four types.
The indexes of interclass delimitation for soda saline soils in Xinjiang are discussed. Five indexes including total sails, pH, total alkalinity, residual sodium carbonate and(CO_3^(2-)+HCO_3^-)/(Cl^-+SO_4^(2-) were used as the indexss in which soda saline soils in whole profile (0～60cm), tolal alkalinity and residual sodium carbonate are considered as the more important indexes.
关键词
盐清土
主组元
苏打
分级
principal component
analysis
soda
saline soil
