evenness indices

the diversity and evenness indices of the macrozoobenthos had no significant differences between seasons and among sampling sites.

春、秋季间和各断面间的多样性指数和均匀度指数都没有显著差异。

fuzzy clustering analysis was made of the insect communities in cotton fields of sichuan province with community diversity indices, evenness indices, abundance degree and total number of species.

利用群落多样性指数、均匀性指数、丰富度及物种个体总数等指标，对四川棉田昆虫群落进行了模糊聚类分析。

For trees ( DBH> 2.5), species diversity and evenness indices increased from 1982 to 1994 in all the three forests.

就乔木（DBH＞2.5cm）而言，3个样地的物种多样性和均匀度指数从1982年至1994年都已增长。

the result of the study shows that landscape change of nera is quite significant. diversity and evenness indices are decreasing.

地景变迁研究结果显示南仁山生态保护区地景变化显著，地景多样性、均匀度有逐渐降低之趋势。

Based on the ANOVA, the influences of fire disturbance upon the species richness and species diversity of the shrub, herbivore and whole underlayer are very significant, however, the effects on the evenness indices are not obvious.

火干扰对下木层、草本层和下层总体的物种丰富度和物种多样性有显著影响，而对均匀度的影响不显著。