Pando is not an unusual aspen from a genetic standpoint.

从基因角度来看，潘多并不是一种不寻常的杨树。

And these young aspens never turn into old ones.

这些年轻的颤杨永远不会变成老颤杨。

That gave willows, cottonwoods, and aspens a better chance to grow near streams.

这使得杨柳、三角叶杨和白杨有更好的机会在溪流附近生长。

Well, like everything that evolves, aspens have adapted to their environment.

就像所有进化的东西一样，颤杨已经适应了它们的环境。

So aspens have evolved to succeed in these destructive conditions.

颤杨在这种破坏性的条件下顺利进化。

Aspens have long roots that burrow through the soil.

白杨有着钻透土壤的长根茎。

The sap was rising in the pines. The willows and aspens were bursting out in young buds.

汁液灌满在松树上，嫩芽绽放在柳树上。

It's a stand of trees, a field of aspens all clones and all connected at the roots.

它是一片树林，是全部无性繁殖、所有根系连接在一起的一片山杨树林。

For one thing, the fires that aspens depend on to thrive. Well, we're not letting them burn.

一方面，让颤杨茁壮成长的山火，我们并没有让它们烧起来。

I mean, aspens are pretty average-looking trees of tens of meters high.

我的意思是，颤杨几十米高，看起来很普通。

The deers' aggressive browsing of young aspen poses a huge threat to Pando.

鹿对小山杨树的侵略性掠食给“潘多”造成了巨大威胁。

Aspens hold a ton of records among trees.

颤杨在树木一类当中保持着大量的记录。

On still autumn afternoons I like to walk through the aspen groves and visit with the cottonwoods.

在寂静的秋日午后，我喜欢穿过白杨树林，流连于棉树林。

The canine comeback also boosted the growth of popular elk foods such as aspen and willow trees.

狼群回归还促进了山杨和柳树等麋鹿常见食物的生长。

In this way of growing, well, it gives aspens a big advantage in this kind of environment.

这样的生长方式给了颤杨在这种环境下存活的优势。

At the same moment the aspens close by began rustling.

与此同时，附近的白杨树开始沙沙作响。

So as aspen goes so do all those dependent species. So that's the number one reason.

因此，随着山杨的衰落，其它所有依赖物种也会随之消失。这是最重要的原因。”

And it sprouted, became a seedling, and it chased the sun's light up to become a giant aspen.

它发芽了，变成了一棵幼苗，它汲取着阳光，变成了一棵巨大的颤杨。

In the Western U.S., the lower 48, aspen, second to riparian systems, are the most biodiverse forests that we have.

在位于美国西部的下48州，就生物多样性的丰富程度来说，山杨林仅次于河岸系统。

And that's a really dangerous situation for aspen because it really depends on continuous growth of the whole clone.

这对山杨来说是非常危险的情况，因为山杨非常依赖整体无性繁殖的持续增长。