新时期石漠化治理正处在从抑制石漠化面积扩张为主转向石漠化生态系统恢复力提升为主的新阶段，喀斯特生态系统恢复力评估和生态修复机制研究势必成为当前石漠化综合治理的关键问题。依据石漠化治理工程的空间布置尺度及时间效益尺度，以植被生物量作为替代因子，选用遥感估测及历史实测数据可客观定量地评估生态系统恢复力，即使用高分多光谱Worldview和ALOS PALSAR雷达数据协同反演植被生物量，并用地面实测数据验证，实现石漠化生态系统恢复力定量评估，对比治理工程前后石漠化生态系统恢复力状况，分析其时空变化；据此再选取影响该系统修复的主要自然（气候、生境条件）和人为要素（人类活动强度、主要治理工程），利用灰色系统模型，定量分析喀斯特生态系统恢复力与修复因素之间的关系，识别和筛选影响生态系统修复的关键因素，揭示喀斯特石漠化生态系统修复机制，并识别优先恢复区域和风险区，为新时期石漠化综合治理提供科学依据。

The key emphasis of controls of karst rocky desertification has been transferred from inhibition of area expansion to the new stage of promoting the resilience of the ecosystem. And the assessment of karst ecosystem resilience and restoring mechanism are inevitably to be the key problems currently. On consideration of the spatial scale of the control engineering and the time scale of the engineering benefit, the above ground biomass was selected as the surrogate of the ecosystem resilience. By applying the high spatial resolution with multi-spectral Worldview and ALOS PALSAR data synergistically, the biomass was retrieved and the results were validated by the field data. The ecosystem resilience was assessed based on the above ground biomass. We compared the resilience before and after the implementation of rocky desertification comprehensive management projects. Then, the primary natural factors including climate and habitat and anthropogenic factors including human activities and main control projects that affect the restoring of the ecosystem were selected and quantified. The grey system model was used to identify and screen the key factors influencing the restoring power of karst ecosystem, in order to clarify the influence mechanism of karst ecosystem resilience and identify priority restoration area and risk area, which could provide scientific basis for the second rocky desertification comprehensive management projects.