群落物种多度的分形模型和一般性分布规律的验证与探讨

高俊峰, 苏强

Verification and Discussion on Fractal Model and the General Pattern on Species Abundance in Community

Junfeng GAO, Qiang SU

表1 以群落物种间生物个体数量降序排列，物种排序位数(r)、新增物种倍数(K_r)和第r个物种多度(N_r)之间的关系

Table 1 Ranking species abundance in descending order, the relationships of the rank (r), the multiple of new species (K_r) and the abundance of the r-th species (N_r) at each step of ecological succession were shown

排序位数r	新增物种倍数K_r	N_r与N_r_-1的计算关系	N_r与N₁的计算关系
1	-	N₁	N₁
2	2/1	N₁⋅（2）^-1/^d	N₁⋅（2）^-1/^d
3	3/2	N₂⋅（3/2）^-1/^d	N₁⋅（3）^-1/^d
$\dots$	$\dots$	$\dots$	$\dots$
r	r/（r-1）	N_r_-1⋅［r/（r-1）］^-1/^d	N₁⋅（r）^-1/^d