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Based on the evaluative data of forest biodiversity changes in China from 1973 to 1998,the variation models of notonly the pressure index of forest biodiversity but also the forest ecosystem diversity and the forest species diversity as well as thegeneral index of forest biodiversity are computed using SPSS (Statistical Package for the Social Sciences) and are respectively y_1=86.856 3×1.166 8~t,y_2=131.918t-7.119t~2-4.938 8t~3,y_3=e~((5.606-0.981 4/1)),and y_4=e~((5.191 6-0.570 2/t)).Furthermore F-values,Sig.F,R~2,Q-Q plot are analyzed in these models.Then this paper points out that the variation of forest biodiversity can be molded,it possiblyshows the direction of variation control of forest biodiversity in China.
Based on the evaluative data of forest biodiversity changes in China from 1973 to 1998, the variation models of notonly the pressure index of forest biodiversity but also the forest ecosystem diversity and the forest species diversity as well as the general index of forest biodiversity are computed using SPSS (Statistical Package for the Social Sciences) and are respectively y_1 = 86.856 3 × 1.166 8 ~ t, y_2 = 131.918t-7.119t ~ 2-4.938 8t ~ 3, y_3 = e ~ (5.606-0.981 4/1) , and y_4 = e ~ ((5.191 6-0.570 2 / t)). Furthermore F-values, Sig.F, R ~ 2, QQ plot are analyzed in these models.Then this paper points out that the variation of forest biodiversity can be molded, it possiblyshows the direction of variation control of forest biodiversity in China.