abundance of species

Effects of species richness on colony biomass and tests of sampling-and complementary effect.;

物种丰富度对集群生物量的影响及抽样、互补效应的检验

Effects of altitudinal range on species richness patterns and mid-domain-effect along the altitudinal gradients;

物种分布宽度对种子植物物种丰富度垂直分布格局及“中间膨胀效应”的影响

Study on the species richness and minimum sampling area in both natural and artificial Pinus tabulaeformis forests;

油松天然林与人工林物种丰富度及最小面积的比较研究

Based on the research results, the space pattern of the species abundance were analyzed.

本文调查了上海城市园林植物群落的物种丰富度 ,按区域类型、功能目标类型和不同面积等级进行了统计 ,分析其格局和变化规律 ,并根据调查研究结果提出了适于充分利用植物资源的城市园林植物群落面积 ,供园林实践参考借

The main results were as follows: In 1350 m2 the plots,vegetation species abundance of industrial plantation of Eucalyptus were in the order of herb layer>shrub layer,species abundance of shrub layer were 4～16,and herb layer were 10～22.

通过群落学调查,根据30块样地的调查资料,采用物种丰富度、Simpson指数、Shannon-Winner指数和均匀度指数,分析了桉树工业原料林林下植物物种多样性特征。

The results showed that the order of the species abundance in 1200m2 sample plot with different regeneration modes was natural regeneration (159 species)＞artificial promoting regeneration (130 species)＞man-made forest (94 species).

结果表明，1 200m2样地物种丰富度为：天然更新159种，人促更新130种，人工造林94种；多样性指数(Dsh)分别为4。