biennial grassland
常见例句
- The annual and biennial herbs and xerophytes were dominant in every degraded stage of grassland, and played important roles in maintaining stability and ecological function of the community.
草地退化過程中物種、功能群組成的變化，基本反映草地生態系統退化、群落結搆簡單化和環境基質穩定性減弱等一系列植被與生境系統變化的趨曏。 返回 biennial grassland