中国喀斯特脆弱生态环境石漠化风险评价方法

中国南方喀斯特生态脆弱区石漠化风险严重威胁区域生态安全。石漠化风险评价是喀斯特生态脆弱区石漠化灾害风险管理的重要手段, 可以为石漠化灾害风险防范提供技术支持和决策依据。文中在对石漠化及其风险评价相关概念及内涵进行分析界定的基础上, 基于石漠化风险评价研究现状, 从概念模型、评价方法与指标体系构建3个方面展开评述, 提出石漠化风险评价的主要方向是定量化、系统化和全球变化情景下的风险评价。

Rockification Risk Evaluation Method for Fragile Ecological Environment in China's Karst Region

The rockification risk at ecological fragile area in China's south karst region seriously threatens regional ecological security. Rockification risk evaluation is an important means for risk management in there, which can provide technical support and decision-making basis for the risk prevention. The paper analyzed and defined rockification and its risk evaluation, and discussed the definition model, evaluation methods and index system on the basis of research progress of rockification risk evaluation. Finally, the paper came up with the main directions of rockification risk evaluation, i.e., quantitative evaluation, systematic risk assessment and risk evaluation under global change.