REPORTER: In 2015, this region of boreal forest was the scene of an overwintering fire also known as a zombie fire.

2015年，这片北方森林地区发生了一场越冬大火，也被称为僵尸大火。

In the last two fire seasons, other parts of the world dominated by boreal forest have also seen overwintering fires and Jandt says that may be where some of her research goes next.

在过去的两个火灾高发季，北方针叶林为主的其它地区已经出现了越冬火灾，Jandt 说她接下来可能去研究那些地方。

Zombie fires or overwintering fires are a phenomenon that occurs when wildfires are extinguished on the surface, but continue to burn underground.

僵尸火或越冬火是当野火在地表熄灭但在地下继续燃烧时发生的一种现象。