Plant Diversity During Recovery Process of Vegetation in Eroded Red Soil Region,South China

The severely eroded land,four artificial forest( 2,7,13,30 years) and native forest were chosen for the research subjects in the area of Changting county of Fujian province.The vegetation community diversity at different recovery period were studied based on the richness index,diversity index,evenness index and dominance index.The results show: With the increase of vegetation management period,Plant species shows an overall increasing trend.Native forest plot reaches the maximum,which holds 31 families,55 genera and 60 species.But the restoration and succession of plant is a long process.In the process of vegetation restoration and succession,The Patrick richness index,Shannon-wiener diversity index,Sheldon evenness index and Simpson dominance index in the tree layer,shrub layer and herb layer change are not the same.Patrick richness index and Shannon-wiener diversity index vary spatially in the following order: shrub layer tree layer,herb layer,while Sheldon evenness index and Simpson dominance index show the opposite trend.