Abstract: This paper set 4 different degradation plots(removing trees,H>8 m; removing trees, H<8 m;removing all aboveground plant;removing all aboveground plant and 0～10 cm depth surface soil) with each size being 20 m×20 m in Tiantong National Forest Park,Zhejiang province in 2003,leaving one as the comparison in the same year.Each plot was divided into two halves, one for natural restoration and the other for factitious restoration.In each plot, the habitat factors are inspected, including air temperature, humidity at the height of 0.3 m,1.5 m and 8.0 m,soil temperature and humidity in the depth of 5 cm and 20 cm, light intension in different height. In the natural restoration part of each plot, the floristic compositions and community structures were investigated in every season. In the factitious restoration part of each plot, the seeds of the dominate species were sowed and/or planted in.The germination of seeds and the growth of seedlings were studied for three years.The resnlts show that different destroyed plots have different restoration dynamics with different compositions and structures.

Key words: ecological restoration, experimental ecology, long-term ecological study, evergreen broad-leaved forest, ecological restoration, experimental ecology, long-term ecological study