Abstract:The dispersal of Rhus typhina into the natural and semi-natural vegetation types in areas of Beijing and the impact of Rhus typhina on natural regeneration of native tree species were studied in order to answer some of the debated questions about planting Rhus typhina in areas of Beijing. Studies on the dispersal of both single trees and of stands were carried out by measuring the number and growth of new trees and their distance from the parent tree or stand edge. Small sample plots were used to investigat...