本文论述了霍、洮两河中下游地区土地盐碱化的自然背景．盐碱地的土壤类型与特征，该地区土地盐碱化每年以１-２％速度递增，不仅严重制约着该地区农牧业和农村经济的发展，而且已危及人民的生存问题．认为该地区盐碱化的形成有自然和人为两方面的原因．并提出该地区土地盐碱化综合治理应根据不同类型取用不同的实用技术． This paper discusses the natural background of land salinization in the middle and lower reaches of Huohe River and Shuhe River. The types and characteristics of soil in saline-alkali land are increasing by 1-2% each year, which not only seriously restricts the development of agriculture, animal husbandry and rural economy in this region, but also endangers people’s survival. It is believed that the formation of salinization in this area is both natural and man-made. And put forward that the comprehensive management of land salinization in the area should be based on different types of access to different practical technologies.