1.Department of Soil and Water Conservation,Shandong Agricultural University,271018;2.Water Conservancy Bureau of Daiyue District,271000:Taian,Shandong,China
Abstract：In order to offer a scientific theory for the further management of the artificial forest communities in Huangqian watershed,the flora composing and the geography ingredient of four typical forests are analyzed,and the characteristics of species diversity are quantitatively researched by normal investigating method.The results showed that: Firstly,the flora of the watershed was richer which accounts of 13.02% of Tai Mountain flora.Secondly,the difference of simpson index,Shannon-Wienner index and evenness index of shrub and herb layer in four soil and water conservation forest communities was non-significant.But the richness index was significant.The development of herb was better than shrub obviously.Thirdly,each artificial forest community was still in primary stage of succession.The vegetation under artificial mixed forest was mainly shady species and under other forests was mainly sunny species as Herbaceae.Fourthly,the analysis on total species diversity characteristic of four manmade communities showed that the total species richness of Castanea mouissima was the lowest,the evenness index was the largest and the diversity index was smaller,while the total species richness of the man-made mixed forest of Pinus densiflora and Acer truncatum was the largest,it's diversity index was also the largest,but it's evenness index was smaller.The total diversity of artificial mixed forest was larger,while single forest was smaller.Artificial mixed forest was advantageous to development and renewal of vegetation under woody layer.
2006, Vol. 4 
