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选择克里雅河流域于田绿洲为靶区,以灌漠土、棕漠土、盐土和风沙土4种不同土壤类型为对象,结合通径分析开展了土壤表层盐分特征及其影响因素研究。结果表明:4种土壤类型表层全盐含量以盐土最高(60.62 g·kg-1),并且显著高于其他3种土壤类型(盐土>棕漠土>风沙土>灌漠土);各类型土壤盐分离子组成主要为SO2-4、Cl-和Na+。地下水埋深是影响该区域各类型土壤表层全盐含量的主要因子;此外,灌漠土与土壤水分和总碱度、棕漠土与土壤容重、风沙土与总碱度对各类型土壤表层全盐含量均有直接的正效应。
Taking Yutian Oasis as the target area in the Kailian River Basin, four different soil types of desertified soil, brown desert soil, saline soil and aeolian sandy soil were selected for the study. Based on the path analysis, the salinity characteristics of soil surface and its influencing factors were studied. The results showed that the total salt content of surface soil of the four soil types was the highest (60.62 g · kg-1) and significantly higher than the other three soil types (saline soil> brown desert soil> aeolian sandy soil> desertified desert soil) Salt ions are mainly composed of SO2-4, Cl- and Na +. Groundwater depth is the main factor affecting the total salt content of various types of soils in the region. In addition, the water and total alkalinity of desert soil and soil, the content of brown desert soil and soil bulk density, sandy soil and total alkalinity Salt content has a direct positive effect.