4SON Y. Nitrogen and phosphorous distribution for five planta- tion species in southwestern Wisconsin[J]. Forest Ecology and Management,1992,53(1) :67- 75.
5GILLMAN G P, SINCLAIR D F, KNOWLTON R, et al. The effect on some soil chemical properties of the selective logging of a north Queensland rainforest[J]. Forest Ecology and Man- agement,1985,12:195 -214.
6CROME. The effects on vegetation of logging virgin upland rainforest in north Queensland[J]. Forest Ecology and Man- agement, 1992,49:1 -29.
7VANCLY J K. Effects of selection logging on rainforest pro- ductivhyEJ]. Aust. For. , 1990,53:200 -214.
8IWAN W. Damages and growth effects after selective me- chanical cleaning[J]. Scand. For. Res. , 1992,3;259- 272.
