The nematode community richness index and evenness index in Grafted maofen plots were 0.55 and 0.73, which were 0.51 and 0.76 in maofen plots.
嫁接毛粉番茄根围土壤线虫群落丰富度指数为0.55，均匀度指数为0.73，毛粉番茄丰富度指数为0.51，均匀度指数为0.76。
The results showed the followings. (1)During different periods, the species richness index were different under different field management conditions.
结果如下：（1）不同时间不同管理条件下节肢动物群落的种类丰富度不一致。
The plant species richness index is not positive relevant to species evenness index for which represents the evenness extent of species distribution instead of the quantity of species.
物种丰富度指数与均匀度指数并非存在正相关关系，均匀度指数反映的是物种分布的均匀程度，并不反映其物种数量的多少。
Bacillus subtilis BSD-2 antibiotics can keep phyllosphere microbial richness and diversity index.
抗菌素则利于保持叶际微生物的丰富度及多样性指数。
Both the species richness and the abundance of predacious and neutral insects were relatively smaller, but predators had the highest evenness index.
捕食性和中性昆虫的种类和数量相对较少，但捕食者的均匀度最高。
Both the species richness and the abundance of predacious and neutral insects were relatively smaller, but predators had the highest evenness index.
捕食性和中性昆虫的种类和数量相对较少，但捕食者的均匀度最高。
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