They are crucial in the forest ecosystem.

它们是森林生态系统的组成部分。

Under your skin, you realize you are much like a forest ecosystem.

肌肤之下，你就像一个森林生态系统。

But there is a research forest here, where scientists study the economic dynamics of forest ecosystems.

但这里有研究性森林，科学家们研究森林生态系统的经济动态。

It's fantastic to think that what animals do in one season influences the forest ecosystem throughout the year.

一想到动物们在一个季节里所做的事，会影响这个森林生态系统一整年，就让人感到不可思议。

They may be frightening and destructive forces of nature, but wildfires are also vital to the existence of healthy boreal forest ecosystems.

野火可能有点可怕， 并对大自然有破坏力，但它们对于维持健康的森林生态系统却有着重要的意义。

Forest ecosystems face threats from increased wildfire incidences, pests, and diseases, all exacerbated by a changing climate.

森林生态系统面临着野火发生率增加、害虫和疾病的威胁，而气候变化又加剧了这些威胁。

The concept that a forest ecosystem had monetary value — and that its custodians could be compensated — was controversial and much misunderstood.

森林生态系统具有货币价值——而且它的保管人可以得到补偿——的概念是有争议的，并且被误解了很多。

We must move our supply chains out of forest ecosystems, and to do that, we need to change the business practices of thousands of brands.

我们必须将供应链移出森林生态系统，为此， 我们需要改变数千个品牌的商业实践。