可见，演替后期的火炬树单优种群落不能发展成为一个稳定的顶级群落。
Staghorn sumac community could not develop to the climax stage .
通过对荒漠植物群落物种多样性特征研究表明，共优种群落的物种多样性指数较单优种群落的物种多样性指数高。
The research about species diversity of desert plant shows that diversity index is higher in co-dominant community .
单优种群落