【摘要】 荒漠化已成为全球性社会环境问题，它与脆弱的生态环境有密切关系。山地系统在景观上为农林交错带，生态系统的脆弱性表现在具有内生型脆弱性、对植被的依附性、景观过渡性以及落后的生产力等方面，荒漠化较严重。作者通过对坡面级联系统以及系统内部的反馈机制分析，讨论了山地荒漠化的运行机制，并进一步就荒漠化的防治提出几点想法。更多还原

【Abstract】 Desertification has become a global social environmental problem and is closely related to fragile ecoenvironment. From the viewpoint of landscape, mountain system lies in the agriculture forest cross zone. The fragility of its ecosystem shows on many hands, such as inner fragility, dependence on vegetation, transition of landscape, backward productive force, etc. Desertification is relatively severe. In this paper, by analyzing the hillside cascade system and the inner feedback mechanism of the system, the operating mechanism of mountain desertification is discussed and furthermore some thoughts about the prevention and control of desertification are raised.更多还原