火山土

例句：

1. 1. The volcanic soil is rich in minerals that are beneficial to plant growth.
   火山土壤富含对植物生长有益的矿物质。
2. 2. The volcanic ash has been used as a building material for centuries.
   火山灰土被用作建筑材料几个世纪了。
3. 3. The volcanic eruption has left behind a layer of volcanic soil that supportsthe local ecosystem.
   火山喷发留下了一层支持当地生态系统的火山土壤。