新疆开都河流域下游绿洲盐渍化土壤特征

目的]探究新疆开都河流域下游绿洲盐渍化土壤特征。方法]采用传统统计学方法,分析开都河流域下游绿洲的土壤含盐量及主要盐基离子的特征值。结果]研究区0~10 cm土层土壤属于重度盐渍化土壤,10~30和30~50 cm土层土壤属于中度盐渍化土壤,土壤盐分具有一定的表聚性。各层的盐渍化类型主要是以氯化物-硫酸盐型盐渍化土为主,其次是硫酸盐渍土,其他类型盐渍土比例极小。不同采样深度内,各层盐基离子含量呈自上而下变小趋势。结论]该研究可为精细农业研究提供基础数据。

The Characteristics of Soil Salinization in the Downstream Oasis of Kaidu River Basin in Xinjiang

Objective] The characteristics of soil salinization in downstream oasis of Kaidu River Basin in Xinjiang was explored.Method] The soil salt content and the characteristic values of the main base cations in the downstream oasis of Kaidu River were analyzed by using the methods of traditional statistics.Result] The results showed that the surface soil type in study area was serious salinization,and soils with 10-30 cm depth and 30-50 cm depth were moderately saline soil,the distribution of soil salinity had certain cohesion property.The main salinity type of each layer soil was chloride-sulfuric acid saline soil,and the second salinity type was sulfuric acid saline soil,the proportion of other types of saline soil was very small.The main base cations content of soils with different sampling depths showed decreasing trend from top to bottom.Conclusion] This study provides basic data for the study of precision agriculture.