STUDY ON THE SPECIES DIVERSITY OF ELAEAGNUS MOLLIS COMMUNITY IN SHANXI
山西翅果油树群落的多样性研究

The species diversity of Elaeagnus mollis communities was studied using species richness,evenness and species diversity indices.In addition,relationship between elevation and species richness,relationship between evenness and species diversity,and relationship among species richness,evenness and species diversity indices were studied by means of correlation analysis.The results are as follows: There were lower species richness,species diversity and evenness in E.mollis communities under intensive disturbance habitats.However,there were lower species richness and species diversity and higher evenness indices when E.mollis community approached to the climax stage.Moreover,there were higher species richness,evenness and species diversity under disturbance situation to a small extent.The species richness,evenness and species diversity indices of shrub layer and herb layer had various forms in E.mollis communities in Shanxi.Elevation had no significant effect on the diversities of E.mollis communities in Shanxi.