汶川地震灾区不同植被恢复模式评价与筛选

Evaluation and Selection of Different Vegetation Restoration Models in Wenchuan Earthquake Areas

摘要: 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。

Abstract: Because disturbances from the Wenchuan earthquake to the regional environment are very huge and continuous,disaster controlling and recovery of ecological environment in disaster areas is an important task of rehabitation.By means of expert scoring method,the evaluation index system of vegetation restoration was set up in the Wenchuan earthquake zone.And studies were made of recovery characteristics of community,biomass and soil from typical damage forest of representative 9 counties in Wenchuan earthquake areas through the way of sample plot.On this basis,the disaster types and the degree of forest land damaging caused by the earthquake were evaluated,and some vegetation restoration models were screened out in view of different disaster types and at different degree of forest land damaging.