贵州省石漠化敏感性的动态演变与模拟预测

石漠化可以定义为：在亚热带脆弱的喀斯特环境背景下，受人类不合理社会经济活动的干扰破坏，造成土壤严重侵蚀、基岩大面积裸露、土地生产力严重下降、地表出现类似荒漠景观的土地退化过程1]。石漠化敏感性评价是为了识别容易发生石漠化的区域，评价石漠化对人类活动的敏感程度。石漠化敏感性评价应根据石漠化问题的形成机制，分析石漠化敏感性的区域分异规律，明确石漠化问题可能发生的地区范围与可能程度。本文从采取定性和定量相结合的方法来研究1962年和2000年的贵州省的石漠化敏感性。

The dynamic change and simulation and prediction of sensitivity of the Karst rocky desertification of Guizhou

Abstract: Karst rocky desertification can be defined as follows: it is the process of land degradation involving serious soil erosion, extensive exposure of basement rocks, drastic decrease of land productivity and the appearance of a desert-like landscape of land surface which is under irrational social economic activitis of human beings in the fragile Karst environment in Subtropical Zone. The sensitivity evaluation of rocky desertification is for the purpose of the recognition of the region which is liable to cause rocky desertification and evaluating the sensitive degree of rocky desertification upon human activitis. And it is to analyze the regional distributive laws of the sensitivity of rocky desertification and explicit the regional area which is liable to cause and the possible degree according to the formation mechanism of rocky desertification. In this study, the combined qualitative and quantitative meathod is selected to investigate the sensitivity of rocky desertification of Guizhou Province in 1962 and 2000.