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林，冬天使得狩猎变得相当。

Across the northern hemisphere the deciduous forests are changing.

环绕整个北半球，可以看到落叶林在不断变化。

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

这里是泰加林的最南端，落叶树木取代了常绿树木。

For thousands of years, it was the most abundant tree species across the eastern deciduous forest. It's lumber was used to create fine musical instruments and hardwood furniture.

千百年来，它曾是东部落叶林中数量最多的树种。它的木材被用来制作精美的乐器硬木家具。

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

所以每年秋天，落叶树会在叶子落下前进行养回收。

Deciduous and evergreen trees handle this problem in different ways.

落叶树常青树以不同的方式处理这个问题。

" Deciduous" means that the plants lose their leaves during the winter season.

“落叶”意味着植物在冬季落叶。

The benefits of temperature regulation can also be found in deciduous trees, which offer passive solar shading in summer, while allowing the sun's rays penetrate deep into a building's floor plan during winter months.

温度调节的好处也可以在落叶乔木找到，它们在夏天提供被动遮阳，在冬季让阳光穿透到建筑的平面。

However, observational work carried out in temperate deciduous forests by Kristina Anderson-Teixeira at the Smithsonian Conservation Biology Institute in Front Royal, Virginia, and her colleagues found no sign of this happening.

然而，弗吉尼亚州皇家前线史密森保护生物研究所的克里斯蒂娜·安德森·特她的同事在温带落叶林在进行观察工作时，并没有发现这种情况发生的迹象。

Deciduous trees like birch and aspen live for about 100 years, so the team couldn't simply wait for one or two centuries to find out what happens in the forest.

像桦树白杨这样的阔叶树的寿命约为100年，所以研究小组不能只是等上一两个世来发现森林里发生了什么。

Collectively, there's less sunlight for plants to harvest using the chlorophyll in their leaves, so deciduous trees begin to pull back their investment in keeping them alive.

总的来说，植物通过叶绿素从阳光中获取能量的机会减少了，因此落叶树木开始减少生产叶绿素，以保持其生命力。

The Aspen Parkland region was defined by deciduous trees, meadows, and wetlands and hardly any of it extends any further south into the United States.

阿斯彭公园绿地区域由落叶树木、草地湿地组成，几乎没有任何地方向南延伸到美国。

There was pollen, there was spores, there were leaves and the general tenor of the plant remains was that it was a deciduous type forest.

这里有花粉孢子，有叶子，而且这些植物遗骸表明这是一个落叶林。

Brambles, though churlish when handled, are kindly shelter in early winter, being the latest of the deciduous bushes to lose their leaves.

刺藤扎手，很处理，但在初冬之时，却是很好的遮蔽物，因为在所有落叶植物中，它是最后落叶的。

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

千百年来，它曾是东部落叶林中数量最多的树种。

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

它在英国欧洲大陆很常见，见于混合落叶树林，尤其是橡树山毛榉树下。

Deciduous trees are shedding their leaves.

落叶乔木的树叶开始掉落。

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

它们吃叶子，嫩枝落叶性树木的内层树皮，还有灌木、水生植物、草等。

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

在一些热带森林中，树木的叶子在旱季会像落叶林一样凋落。

Healthy but overgrown or unproductive deciduous shrubs can be brought back to life by pruning.

健康但杂草丛生或不多产的落叶灌木可以通过修剪而恢复生机。