It's burning off the organic layer of soils that support species like black spruce.

它正在燃烧土壤的有机层，而这些有机层正是黑云杉等物种赖以生存的土壤。

After a while, the goo can get buried under sand and other sediment and then time, pressure, and heat turn that organic layer into oil and natural gas.

一段时间之后，黏性物质就会被沙子和其他的沉积物掩埋，然后呢，时间、压力和热量会将有机层转化为石油和天然气。

This is our newest experimental facility and the purpose of this facility is to understand pretty much how large woody fuels and deep duff layers, deep organic layers burn.

这是我们最新的实验设施，这个设施的目的是了解大量的木质燃料和深层尘土层，深层有机层是如何燃烧的。