Making use of PSR conceptual model of ecological security and hierarchy analysis method,evaluation system of ecological security of Qusum county,Tibet Autonomous Region is established.

• 用生态安全的PSR(压力-状态-响应)概念模型和层次分析法,建立了西藏曲松县生态安全评价体系,综合评价了曲松县生态安全现状。