enrichment of soil

例句：

1. 1. The soil is rich in nutrients that plants need to grow.
   土壤富含植物生长所需的养分。
2. 2. The company's investment has significantly enriched the local economy.
   公司的投资显著地丰富了当地经济。
3. 3.The study found that genetic diversity can enrich the ecosystem.
   研究发现，遗传多样性可以丰富生态系统。