the clustering analysis of least distance method was applied, the results showed that types of the phytocoenosium are 4: high function, commonly function, low function and degenerative function type.
liu x z, fu q. scientific survey and study of rare phytocoenosium on the matoushan nature reserve in jiangxi province[m]. beijing:china forestry publishing house, 2006.
redundancies of a phytocoenosium consist of organ redundancy in a plant, redundancy of genetic structure(or individuals)in a population, and species redundancy and layer redundancy at community level.