河西走廊所处地理位置的自然环境复杂,盐渍土面积大,分布广,其形成,积盐形式和盐类成分具有明显的特征。盐渍土类型以硫酸盐为主。土壤含盐量高,造成生理性干旱,是生产力水平低下的主要原因。盐故化土地有不断发展趋势。作者根据前人的研究成果和多年实践,提出一套改治盐碱土壤的技术路线和原则措施,可供各地匹配选用。 The natural environment of the Hexi Corridor is complex. The saline soil is large in area and widely distributed. Its formation, salt accumulation and salt composition have obvious characteristics. Salty soil type sulfate-based. Soil salinity, resulting in physiological drought, is the main reason for the low level of productivity. Salt soils have a growing trend of land. According to the previous research results and years of practice, the author put forward a set of technical routes and principles and measures for remediation of saline-alkali soil, which can be used for matching all over the world.