Parameters and characteristics of saline soils around Ulansuhai Nur.
乌梁素海湖滨带盐碱土碱化参数与特征分析

In order to find out the law of the saline soil around Ulansuhai Nur. ESP,SAR,the total alkalinity,pH and salinity of the saline soil which come from Ulansuhai Nur. were mesasured. The analysis results reveal the type of the soils feature and distribution in vertical condation. The Ulansuhai Nur. Soil-soluble content is mainly composed of Na+,SO2-4 and Cl-, which Na+ is achieving up to 63.6% and the SO2-4 is nearly between 33.24%~88.96%, the Na+ is the principle cause to aggravate soil alkalinization. The high ESP comes out in different position which becomes higher when the salt content and the total alkalinity are high. It can be seen that the associative relationship between the ESP and the SAR is in significant correlation which R2=0.955, and n=16. The formation reason with the salts distribution of the soil cross section is analysed with the groundwater and the precipitation which comes from the study area.