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由于大地震对区域环境的干扰强烈且是一个持续的过程,灾区灾害的治理和生态环境的恢复是灾后重建的重要任务。本文采用专家打分法,构建了汶川地震区植被恢复评价指标体系;采用样地法,对汶川地震区具有代表性的9个县典型损毁林地群落恢复特征、生物量恢复特征以及土壤恢复特征等进行了研究,在此基础上对地震形成的不同灾害类型以及不同程度损毁林地类型进行了评价,筛选出了针对各自然地理区的不同灾害类型、不同程度损毁林地的植被恢复模式。
Due to the strong disturbance of the large earthquakes to the regional environment and a continuous process, the disaster disaster management and the restoration of the ecological environment are important tasks for post-disaster reconstruction. In this paper, the expert scoring method was used to construct the evaluation index system of vegetation restoration in Wenchuan earthquake area. By using plots method, the restoration characteristics, biomass recovery characteristics and soil recovery characteristics of typical damaged forest land in 9 counties in Wenchuan earthquake area were studied Based on this, different types of disasters and different types of damaged forest land are evaluated, and the vegetation recovery models are selected for different types of natural disasters in different natural geographical areas and different degrees of damaged forest land.