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本文根据土地退化的成因与特点，将我国土地退化分为水土流失、土地沙化、土壤盐碱化、土地贫瘠化、土地损毁６大类，并总结出我国土地退化的３大特点：①发生广，类型复杂，区域差异明显。②发展快，并具有一定的阶段性。③强度大，生态、社会后果严重。在此基础上提出了防治土地退化的有效对策。
According to the causes and characteristics of land degradation, this paper divides land degradation in China into six major categories: soil erosion, desertification, salinization of soil, impoverishment of land and destruction of land, and summarizes three major features of land degradation in China: The types are complex and the regional differences are obvious. ② rapid development, and has a certain stage. ③ intensity, ecological and social consequences. On this basis, put forward effective countermeasures to prevent and control land degradation.