The boreal forest is the largest terrestrial biome in the world.

叶林是世界上面积最大的陆地态群系。

The boreal forest, also known as Taiga, is the largest terrestrial biome on the planet.

叶林也被称为泰加林，是地球上面积最大的陆地态群系。

These grasslands make up the largest biome in North America.

这些草原构成了美最大的物群落。

So this is now a really significant biome on earth, and it's largely unknown.

因此，这是地球上非常重要的物群落，而且大多数是未知的。

Temperate grasslands have the lowest level of protection of the world's 14 recognised “biomes”, or habitats.

在世界14个受保护的物群落和栖息地中，温带草地的保护水平最低。

Like, think about an aquatic — or water-based — biome.

比如，想想水或水基物群落。

The boreal forest is the largest terrestrial biome in the world. It covers 14 percent of the land on earth.

森林是世界上最大的陆地物群落。 它占地球陆地面积的14%。

On the bad side, the presence of mountains only amplifies the previous negatives with developing desert and jungle biomes.

利的一面来看，山脉的存在只会扩大之前发展沙漠和丛林物群落的利因素。

The Atlantic rainforest is one of the planet's most threatened biomes, more than 90 percent of it was deforested and destroyed.

大西洋雨林是地球上受威胁最严重的物群落之一，有超过百分之九十的森林被砍伐和破坏。

It's made up of different ecological regions, or biomes, where communities of organisms are adapted to specific climate conditions.

它由同的态区域或物群落组成，物群落适应特定的气候条件。

Take the savanna, for example — a transitional biome between forests and grasslands.

以稀树草原为例，它是森林和草原之间的过渡物群落。

But no matter how many biomes there are, plants have important roles to fill in them.

但无论有多少物群系，植物都扮演着重要的角色。

That came at a price, however. Almost half of the original biome has been destroyed.

然而，这是要付出代价的。几乎一半的原始物群已经被摧毁。

That's essentially a semi-arid steppe biome and an extension of the vast American Great Plains.

这基本上是半干旱的草原物群落，是广阔的美国大平原的延伸。

And plants are a major part of nearly every single biome.

植物几乎是每一个物群落的主要组成部分。

And along the way, they're disrupting grassland biomes that aren't used to so many trees.

在此过程中，它们破坏了习惯这么多树木的草地物群落。

The more diverse our biomes are, the more security they have against species extinction and threats to their food webs.

我们的物群落越多样化，它们就越能抵御物种灭绝和食物网受到的威胁。

Each biome contains multiple ecosystems, and all but the most frigid arctic regions are supported by plants.

每个物群落都包含多个态系统，除了最寒冷的极地区外，所有地区都由植物支撑。

The nodules are a core part of a biome roughly the size of the Amazon rain forest, she notes.

她指出，这些结核是一个大致相当于亚马逊雨林大小的物群落的核心部分。

The desert is the driest biome on Earth.

沙漠是地球上最干燥的物群落。