grassland ecosystem

例句：

1. 1. The grasslandecosystem plays a crucial role in maintaining biodiversity.
   草原生态系统在维护生物多样性方面起着至关重要的作用。
2. 2. The prairie ecosystem is home to many rare and endangered species.
   草原生态系统是许多稀有和濒危物种的家园。
3. 3.Prairie-forest ecosystems are characterized by their unique plant and animal communities.
   草原-森林生态系统以其独特的植物和动物群落而闻名。