vegetation activity

例句：

1. 1. The forest is a vital habitat for many plant species.
   森林是许多植物物种的重要栖息地。
2. 2. The vegetation activity in the area has significantly decreased due to climate change.
   由于气候变化，该地区的植被活动显著减少。
3. 3. The researchers are studying the vegetation activity of the region to understand its ecological impact.
   研究人员正在研究该地区的植被活动，以了解其生态影响。