“species richness”造句，怎麼用species richness造句

In the process of secondary succession from conifer - broadleaf forest to broadleaf forest, species richness fluctuated remarkably.

Fig. 4 Responds of tree species richness to environmental factors. The solid line shows the estimations of tree richness, and the dashed lines indicate 95% confidence interval.

This paper discusses species richness, evenness and species diversity of higher plants in deciduous broadleaved forests on the northern slope of Taibai Mountain.