土壤盐碱化的空间变异性研究进展

Research Progress on Spatial Variability of Soil Salinization

土壤盐碱化是制约农业生产的主要障碍之一,已经成为世界范围内的重要课题。不同地区的土壤盐碱化程度存在高度的空间变异性,这就加大了盐碱地治理与改良的难度。为了更好地服务于农业生产,本文初步探讨了在盐碱地的治理过程中,地统计学方法在土壤盐碱化的空间变异研究中的应用,研究结果表明,使用该方法既能降低土壤中硝酸根的含量、提高氮肥利用效率,又能改善土壤结构,进而从根本上解决土壤次生盐碱化问题。

Soil salinization is one of the main obstacles to agricultural production,and has become an important study topic in the worldwide.The degree of soil salinization in different areas has a high spatial variability,which makes it more difficult to control and improve the saline soil.In order to better serve the agricultural production,this paper preliminarily discusses the application of geostatistics in the study of spatial variability of soil salinization during the treatment of saline-alkali soil,which can reduce the content of nitrate in soil,and improve the efficiency of nitrogen fertilizer utilization.It also can improve the soil structure and fundamentally solve the problem of soil secondary salinization.