[关键词]
[摘要]
首次应用WET土壤水分温度电导率速测仪(以下简称WET)测试了银川平原北部地区(简称银北地区)土壤的电导率等参数,分析了银北地区土壤盐渍化分布特征,结果表明银北地区少部分地区土壤属于非盐渍土,其余均为盐渍土,其中惠农区中部、平罗的黄渠桥和灵沙均属于重盐渍化区,贺兰北部也属于重盐渍化区,但不及惠农区严重。与以往研究成果的对比分析发现在土壤含水率、土壤pH值等相关参数变化不大的情况下,基于WET的土壤盐渍化研究在技术上是准确可靠的。
[Key word]
[Abstract]
In this study, the WET soil moisture meter (hereinafter referred to as WET) was applied for the first time to investigate the ECp (pore water conductivity) of soils in the northern Yinchuan plain, and to evaluate the distribution characteristics of soil salinization in this area. The results showed that only a small part of the northern Yinchuan plain has non-saline soil and other parts have saline soils, especially in the central part of Huinong area, Huangquqiao and Lingsha of Pingluo area, and the north part of Helan area where the soil has very high salinity. The research results from this study were consistent with those from previous studies. Therefore, with little changes in the water contents and soil pH values, the application of WET-based method on the soil salinization is accurate and reliable technically.
[中图分类号]
[基金项目]
国家自然科学基金项目“银川平原地下水对变化条件的响应机制及合理开发利用研究”(41172212)