Tree roots are not very good at getting nutrients and water for themselves.

树根不是很善于自己获取水和养分。

The tree roots are start dying.

树根开始死亡。

So, with Fang scampering around them, sniffing tree roots and leaves, they entered the forest.

于是，他们进入了树林，牙牙奔跑在他们周围，一路嗅着树根和树叶。

Harry wriggled into the earthy passage hidden in the tree's roots.

哈利在隐藏在树根里的泥土通道里蜿蜒行进着。

Within 20 years, sidewalks have been torn apart by weeds and tree roots.

在不到20年的时间里，人行道就会被杂草和树根撕裂。

They hide out in rocky crevices or in tree roots below the waterline.

它们隐藏在岩石裂缝或吃水线以下的树根中。

" Tripped over a tree root, " he said angrily, getting to his feet again.

“被树根绊倒了。”他气呼呼地说，从地上站了起来。

Without tree roots to hold onto the soil, the islands erode and slowly disappear.

没有树根固土，岛屿被侵蚀并慢慢消失。

That means that the sugars flow from the tree roots into the fungal hyphae.

这意味着糖分从树根流入真菌菌丝。

Entwined with the trees' roots, they can siphon off some of these sugars.

它们与树木的根部相互缠绕，因此能吸收其中一部分糖类。

Now we want to take you down into the tree roots, where this trading happens.

现在我们想带你去下面的树根，探寻这种交易发生的地方。

As the chips break down, he said, they release fungi and bacteria to help the tree's roots.

他说，随着木屑的分解，它们会释放真菌和细菌，这对树根大有帮助。

A web of underground fungi can connect tree roots in forests, allowing them to exchange nutrients and information.

地下真菌网络可以连接森林中的树根，让它们交换营养和信息。

They can, however, collect nutrients from the soil much more efficiently than tree roots— and pass these nutrients into the tree roots.

然而，它们可以比树根更有效地从土壤中收集养分——并将这些养分传递到树根之中。

Tree roots also rerspire and release CO2.

树根也会重新呼吸并释放二氧化碳。

Together these forces launch sap to dizzying heights, distributing nutrients, and growing new leaves to photosynthesize—far above the tree's roots.

所有这些力量一起把树液推到惊人的高度，进行营养分配，促进新叶子生长进行光合作用——在远远高出树根的地方。

The mycelium spreads across a much larger area than the tree root system and connect the roots of different trees together.

菌丝体分布在比树根大得多的地方，把不同树木的根相连在一起。

This is called capillary action and it's what allows water to climb tree roots and nutrients to flow around our body.

这就是所谓的毛细作用，这让水能够爬上树根、让营养物质在我们体内流动。

They couldn't move very quickly now; there were tree roots and stumps in their way, barely visible in the near blackness.

他们现在无法走得很快了，到处都是树根和树桩，挡住了道路，在近乎漆黑一片的光线下简直看不出来。

They also extend hair-like filaments called hyphae into the soil which pump water even more efficiently than the tree's own roots.

它们还将像头发一样叫做称为菌丝的细丝延伸到土壤中，它比树木自身的根部吸水效率更高。