Deciduous and evergreen trees handle this problem in different ways.

落叶树和常青树以不同的方式个问题。

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营养回收。

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。

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

落叶树是像枫树、橡树或杨树样的树。

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

所以你会在森林里找到两种树。有落叶树。

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林。

Most carbon would be in the trees themselves, since deciduous trees gobble up soil nutrients as they grow rapidly.

大多数碳都存在于树木本身中，因为落叶树在快速生长时会吞噬土壤养分。

They knew that deciduous trees—such as birch and aspen— tended to sprout up in the embers of burned-out coniferous spruces.

他落叶树——如白桦和白杨——往往会在烧毁的针叶云杉的余烬中发芽。

The first are called deciduous trees which are any tree that seasonally shed all their leaves, usually in the fall as the weather starts to get colder.

第一种被称为落叶树，是指季节性脱落所有树叶的树木，通常是在秋天天气开始变冷的时候。

Annual and perennial plants, deciduous and evergreen trees, plants inhabiting different stations and fitted for extremely different climates, can often be crossed with ease.

一年生和多年生植物、 落叶树和常绿树、栖息在不同地点并适应截然不同气候的植物通常可以轻松杂交。

Since deciduous trees have big leafs that take lots of energy to maintain, they simply close up the holes where the leaves attach to the tree to conserve moisture.

由于落叶树的叶子很大，需要大量的能量来维持，所以它会把叶子和树连接的孔封闭起来以保存水分。

That's actually part of a process known as abscission, where most deciduous trees shed their leaves after their colors change from a loss of chlorophyll, the chemical that's involved in photosynthesis.

实际上是称为脱落的过程的一部分，大多数落叶树在颜色因叶绿素损失而改变后脱落，叶绿素是参与光合作用的化学物质。

These techniques are uniquely cold-beating adaptations — well, they were, until descendants of leaf-dropping trees made it back to the dry tropics, where their strategy helps them deal with the extended seasonal droughts that occur in monsoonal climates.

些技术是独特的冷拍适应技术，直到落叶树的后代将其带回热带干旱地区为止，他的策略才可以帮助他应对季风气候中出现的季节性干旱。