Abstract:
The overall association of 28 dominant species in the arbor layer of
Cyclobalanopsis elevatiocostata natural forest located in Mount Zhitishan, Ningde Municipality, was analyzed by applying a series of techniques including variance analysis, x
2-test, association coefficient calculated based on a 2×2 contingency table.And a fuzzy clustering was done to determine the overall association of all species, and the association of each species-pair.It was showed by the results that the overall association of all species was not significantly positive in the natural forest.By AC values analyzed, 152 species-pairs were positively associated and 170 species-pairs were negatively associated. By x
2-test, 12 species-pairs appeared to be significantly negative association at
ρ=0.01, and 93 species-pairs was negative association at
ρ=0.05.