中文摘要：

喀斯特石漠化退化土地是目前西部地区经济发展、生态恢复与重建工作最为严重的问题之一。喀斯特石漠化是一种严重的土地退化，石漠化土地退化过程中存在社会经济反馈、动力反馈和生物原反馈等多层次反馈结构。由于喀斯特生态系统的独特性和脆弱性，喀斯特石漠化土地具有不同于其它生态脆弱区土地退化的特征。因而将其归纳为土地退化恢复过程的基岩差异性、退化恢复过程与土地利用方式的相关性、退化土地成因的地域差异性、石漠化土地的空间异质性与尺度相关性、恢复过程的土壤一地形决定性、土壤资源的不可再生性，石漠化土地退化的本质是喀斯特生态系统服务功能的下降和丧失，是一种功能性荒漠化。对石漠化土地的特征进行全面深入的探讨，有助于石漠化土地分类治理和生态恢复重建。

英文摘要：

The degradation land of karst rocky desertification is one of the most serious problems on economic development, eco-system restoration and reconstruction in Southwest China. Karst rocky desertification is a kind of serious land degradation, including social-economical feedback, dynamical feedback and original biology feedback in its degrading processes. Because of the unique eco-system characters and fragilities of karst eco-system, karst rocky desertification land has different land degradation characteristics differentiated from other fragile eco-region as follows： （1） the lithology types difference during the processes of land degradation and restoration; （2） the relativity among land use patterns and land degradation and restoration processes; （3） regional differences and artificial driving mechanism of formation and distribution; （4） the landscape spatial heterogeneity and scale of rocky desertification land; （5） the restoration depend upon soil and topography;（6） the non-renewable ability of soil resources. Karst land rocky desertification is a kind of functional desertification, and its genesis is the fall and decline of eco-system services. So, it is beneficial to probe into the characteristics of karst rocky desertification land for the taming as classifieations and ecological restoration and reconstruction of land rocky desertification.