Aspens have long roots that burrow through the soil.

白杨有着钻透土壤的长根茎。

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。

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。

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。”

As a result, researchers have seen ancient aspen stands die just like that.

结果研人员看到古老的颤杨就这样死去。

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 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。

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。

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。

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。

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。

And as areas like this, get warmer and drier, it's really bad news for these aspens.

随着像这样的地区变得越来越温暖和干燥，这对这些颤杨来说真的是一个坏消息。

Groups of aspens like these connected underground, well, that makes them one giant organism.

像这样的颤杨群在地下连接，这使它们成为一个巨大的生物。

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

当我还是个孩子的时候，我记得透过结霜的白杨树林窥视，寻找那些珍珠般的鹿角和高贵的白色枪口。

Now the way the aspens grow, by spreading their roots out through the ground, that means they can actually move.

颤杨现在的生长方式是通过穿过地面来散布它们的根，这意味着它们实际上可以移动。

A giant aspen clone in Utah is the current title holder for world's largest organism.

犹他州的一棵巨型颤杨克隆群是目前世界上的最大生物。

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

在位于国西部的下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。

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。

There's still some leaves on the trees, so there's still some color to the aspens.

树上还有一些叶子，所以白杨树还有一些颜色。

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。