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

这使得杨柳、三叶杨白杨有更好机会在溪流附近生长。

But, thanks to genetic testing, we've learned that this stand of aspen covering 106 acres of land is actually a single clonal organism that grew from a lone seed long ago.

不过，正是由于基因检测，我们发这片覆盖 106 英亩山杨实际上是由很长时间前一粒种子无性繁殖出来。

Deciduous trees like birch and aspen live for about 100 years, so the team couldn't simply wait for one or two centuries to find out what happens in the forest.

像桦树白杨这样阔叶树寿命约为100年，所以研究小组不能只是等上一两个世纪来发森林里发生了什么。

As a child I remember peeping through the frosted aspen groves, looking for those pearly antlers and noble white muzzle.

当我还是个孩子时候，我记得透过结霜白杨树林窥视，寻找那些珍珠般高贵白色枪口。

Aspens have long roots that burrow through the soil.

白杨有着钻透土壤长根茎。

Pando is not an unusual aspen from a genetic standpoint.

从基因度来看，潘多并不是一种不寻常杨树。

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一片山杨树林。

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。

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

一方面，让颤杨茁壮成长山火，我们并没有让它们烧起来。

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柳树等麋常见食物生长。

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

对小山杨树侵略性掠食给“潘多”造成了巨大威胁。

And these young aspens never turn into old ones.

这些年轻颤杨永远不会变成老颤杨。

So after a severe fire, the environment is better suited for deciduous tree species like birch and aspen to get a foothold. These trees grow much faster.

所以在一场严重火灾之后，环境更适合像桦树白杨这样落叶树种找到立足点。 这些树长得更快。

It goes to a single quaking aspen named " Pando" that weighs over 6,000 tonnes — as much as forty blue whales.

这属于一棵名叫 “Pando” 山杨其，重量逾 6000 吨，40条蓝鲸一样重。

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

在寂静秋日午后，我喜欢穿过白杨树林，流连于棉树林。

So after a severe fire, the environment is better suited for deciduous tree species like birch and aspen to get a foothold.

因此在严重火灾后，森林环境更适合桦树山杨等阔叶树立足。

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

在位于美国西部下48州，就生物多样性丰富程度来说，山杨林仅次于河岸系统。

Anything that disrupts this environment, and aspens are uniquely adapted to spring back and take over.

任何东西破坏这种环境时，颤杨都能经过独特适应做到反弹恢复并占领。

So how do these aspens grow to be so big?

那么这些颤杨是如何长这么大？

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

因此，随着山杨衰落，其它所有依赖物种也会随之消失。这是最重要原因。”