index of diversity

• 多样性指数

index of diversity的用法和样例：

例句

1. Ancient tea trees are excluded when calculating the species diversity.
   古茶园多样性指数的计算未包括古茶树。
2. The community has an outstanding dominant species and the arborous layer possesses a comparatively high diversity index.
   群落的优势种显著，乔木层的物种多样性指数较高，各样地间的植物种类具有一定的相似性。