THE EFFECT OF DIFFERENT AFFORESTATION TREE SPECIES ON PLANT DIVERSITY AFTER 50 YEARS ON MOUNT TAI, CHINA.

The degree of forest vegetation restoration and reconstruction and the impact of different afforestation tree species on plant diversity in Mount Tai, China were evaluated. We selected 6 kinds of 50-year-old plantations along Tianwai village, Hongmen, Tianzhu peak and Taohuayuan lines. The results show that: 1) Robinia pseudoacacia plantation has significantly lower tree layer richness, Shannon-Wiener diversity and Simpson diversity than other plantations; Pinus tabulaeformis and larch tree plantations have significantly lower shrub layer Shannon -Wiener and Simpson diversity than other plantations, Pinus tabulaeformis and Pinus densiflora have significantly lower Pielou evenness than the other four plantations; Pinus tabulaeformis plantation and Platycladus orientalis plantation have significantly lower herb layer richness than the other four plantations, while Pinus tabulaeformis plantation has significantly lower Shannon-Wiener diversity and Simpson diversity than the other five plantations. 2) Species richness, Shannon-Wiener diversity and Simpson diversity of tree and shrub layers are all presented from highest to lowest in the following order: Mount Meng > Mount Tai > Mount Yi, while Mount Tai plantation has the highest herb layer species richness, Shannon-Wiener diversity and Simpson diversity. These results provide basis for the regulation and prediction of regional forest vegetation restoration and reconstruction in the future. [ABSTRACT FROM AUTHOR]