对石漠化概念及其治理的再思考

Rethinking the concept and restoration of Karst rocky desertification

进一步厘定喀斯特石漠化形成因素对西南喀斯特退化土地生态治理、恢复具有重要意义。梳理当前对石漠化认识有关理论的研究进展,提出喀斯特石漠化是岩溶山地人口增加打破了低土地承载力和低生产力背景下维系的脆弱平衡,而发生的土地退化。当前中国农户正经历着生计转型与多样化生计,对农业生产与农村土地依赖性逐渐减弱,岩溶山地人地关系模型出现了新变化,未来岩溶山地石漠化将呈现由扩展转向收缩的新态势。

In-depth study on the formation and management of Karst rocky desertification is of great significance to the ecological restoration of degraded land in Southwest area,China.On the basis of summarizing the theoretical progress of the current understanding of rocky desertification,this paper puts forward that Karst rocky desertification is a kind of land degradation occurred in the Karst mountains resulted from the increase of the populations of Karst mountains,which breaks down the fragile balance of low land carrying capacity productivity.The current farmer＇s livehood is experiencing the transformation and diversification,therefore,the dependence of local farmers on agricultural production and rural land gradually weakened,which will inevitably lead to new changes of relationship model between man and environment in the Karst mountains and form the new evolving trend of Karst rocky desertification in Karst mountains.