Mechanisms of vegetation change following burial by volcanic tephra

This project continues detailed study of forest understory vegetation change after burial by tephra from Mount St. Helens in 1980. Objectives are to provide a detailed record of pathways of change; to record spatial and temporal variation in soil properties; to determine species characteristics important for recovery from burial; and to use these data to determine the mechanisms of succession. Data will be analyzed to compare responses of different growth forms, species and communities in different conditions of tephra depth, seral age, and time of tephra removal. This study will provide a long-term set of consistent, detailed data about vegetation recovery from an important, widespread disturbance.


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