Across the northern hemisphere the deciduous forests are changing.

环绕整个北半球，可以看到落叶在不断变化。

Deciduous trees are shedding their leaves.

落叶乔木的树叶开始掉落。

Here, in the deciduous forests of eastern Russia, the winter makes hunting very difficult.

这里是俄罗斯东部的落叶，冬天使得狩猎变得相当困难。

Deciduous and evergreen trees handle this problem in different ways.

落叶树和常青树以不同的方式处理这个问题。

The deciduous trees pre-empted the winter by shedding their leaves.

落叶乔木通过脱落树叶率应对冬天。

So each fall, deciduous trees recycle their leaves before dropping them.

所以每秋天，落叶树会在叶子落下前进行营养回收。

Here at the very south of the Taiga, deciduous trees take over from evergreens.

这里是泰加的最南端，落叶树木取代了常绿树木。

The first are temperate deciduous forests.

第一类是温带落叶。

Many forests in Europe, the United States and parts of Canada are temperate deciduous forests.

欧洲、美国和加拿大部分区的许多森都是温带落叶。

For thousands of years, it was the most abundant tree species across the eastern deciduous forest.

千百来，它曾是东部落叶中数量最多的树种。

Deciduous means that the trees' leaves turn different colors and fall off each year.

落叶指树木的叶子会变成不同的颜色，并且每都会凋落。

In some tropical forests, the trees' leaves will fall off in the dry season just like deciduous forests.

在一些热带森中，树木的叶子在旱季会像落叶一样凋落。

They eat leaves, twigs, and the inner bark of deciduous trees, as well as shrubs, aquatic plants, and grasses.

它们吃叶子，嫩枝和落叶性树木的内层树皮，还有灌木、水生植物、草等。

Deciduous trees are trees like, maple, or oak, or poplar.

落叶树是像枫树、橡树或杨树这样的树。

In winter, being deciduous, it was a nightmare; row on row of gaunt gray skeletons.

冬天，落叶如梦。 一排排憔悴的灰色骷髅。

Seventy-two percent became either a mix of spruce and deciduous or deciduous-dominated.

百分之七十二成为云杉和落叶树的混合体或落叶树为主。

It is common across the UK and mainland Europe and found in mixed deciduous woods, especially under oak and beech trees.

它在英国和欧洲大陆很常见，见于混合落叶树，尤其是橡树和山毛榉树下。

Deciduous trees are set to dominate the Interior Alaskan forests by the end of this century.

到本世纪末，落叶树将主宰阿拉斯加内陆森。

So there's really two kinds of trees that you'll find in the forest. There's deciduous trees.

所以你会在森里找到两种树。有落叶树。

The cooling climate triggered a change from ecosystems dominated by forests to ones filled with dry deciduous woodlands.

变冷的气候引发了从以森为主的生态系统向充满干燥落叶的生态系统的转变。