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土壤盐渍化是影响区域生态环境稳定性以及制约农业生产发展的重要因素。对土壤特性进行研究是开展精细农业实践必要的基础研究。本文采用传统统计学方法、相关分析与主成分分析方法,分析新疆典型盐渍化区域渭-库绿洲的土壤含盐量、电导率、TDS、pH值、含水量及主要盐基离子的特征值以及相互之间的关系。结果显示,研究区土壤pH值相对稳定;土壤含盐量具有不均匀分布特征;土壤盐分的分布是有较强的表聚特征。绝大多数时间,矿化度与电导率,电导率与含盐量,SO_4~(2-)、Na~+、Cl~-等离子与表层土壤含盐量之间具有较好的正相关关系,而其他各指标之间的相关关系不太明显。研究区土壤中硫酸盐、氯化物在表层积聚相对强烈;土壤盐渍化类型是属于氯化物型,研究区土壤还在聚盐状态。
Soil salinization is an important factor affecting the stability of the regional ecological environment and restricting the development of agricultural production. Studying soil properties is a necessary basic research for fine-grained farming practices. In this paper, the soil salinity, electrical conductivity, TDS, pH value, water content and the characteristic values of main salt ions of soil in the Wei-reservoir oasis in the typical salinization area of Xinjiang were analyzed by traditional statistical methods, correlation analysis and principal component analysis And the relationship between each other. The results showed that the pH value of soil in the study area was relatively stable; the salinity of soil was unevenly distributed; and the distribution of soil salinity was characterized by strong surface aggregation. Most of the time, mineralization and conductivity, conductivity and salt content, SO_4 ~ (2 -), Na ~ +, Cl ~ - ions and surface soil salinity had a good positive correlation, The correlation between the other indicators is not obvious. In the study area, the accumulation of sulfate and chloride in the soil is relatively strong; the type of soil salinization belongs to the chloride type and the soil in the study area is still in the state of poly-salt.