aerobic spore populations of soil

例句：

1. 1. The aerobic exercise routine is essential for maintaining good health.
   有氧运动是保持健康所必需的。
2. 2. The aerobic bacteria are responsible for breaking down organic matter in the soil.
   有氧细菌负责土壤中有机物质的分解。
3. 3. The aerobic spore populations of soil play an important role in maintaining soil fertility.
   土壤中的有氧孢子群在维持土壤肥力方面起着重要作用。