As its name suggests, grasses like big bluestem and switchgrass dominate the ecosystem.

顾名思义，像大蓝茎和柳枝稷这样的草在生态系统中占主导地位。

But things like forest residue, algae and switchgrass are also used.

但也使用了森林残留物、藻类和柳枝稷等物质。