Hundreds of tree species face extinction.
很多树种濒临灭绝。
One species of tree replaces another as a forest ages.
随着森林老化，一种树会取代另一种树。
Only a small number of tree species have the genetic capacity to grow really big.
只有少数树种拥有长到很大的遗传能力。
China has the world's most ancient tree species — metasequoia.
中国有世界最古老的树种——水杉。
What's more, many tree species are also disappearing.
更重要的是，许多树的种类也即将濒临灭绝。
Large species like the tree kangaroo, the rock cracks and holes as shelter.
大种纯昆颁峦值僚榜原碑签袋鼠喜欢以树、洞穴和岩石裂缝作为遮蔽物。
It's a rare tree species left from the Fourth Glacier Age.
它是第四纪冰川运动幸存下来的珍贵树种。
The degree of influence varied with the tree species.
树种不同，其影响程度不一。
The growth and development of longicorn larvae were obviously affected by different tree species.
不同树种对天牛幼虫的生长发育影响十分显著。
Some exotic tree species died and its crown was withered.
一些外来树种发生了树冠干枯和植株枯死。
Some other applications of ornamental tree species were also introduced.
文中还介绍了观赏树木其它方面的用途。
This tree species are not just for aesthetic reasons, their role can be big go!
这林木可不只是为了美观而种的，它们的作用可大了去了！
It is becoming important pulp and artificial board material tree species as its short rotation.
由于其短轮期特性，正成为我国纸浆材及人造板材的重要原料树种。
However this impact was changed with tree species.
这种影响随树种而异。
Poplar is the main timber tree species in Chaoyang region.
杨树是朝阳地区的主要用材树种。
Star anise: also known as fennel, anise, is a subtropical tree species unique economic region.
八角：又名茴香、大茴香，是南亚热带地区特有的经济树种。
The tree species is unitary, mainly pure forest.
树种单一，多为纯林。
The larch is one of major tree species for afforestation in north china.
落叶松是我国北方主要造林树种之一。
Same tree species have different fiber separation points for the technologies are different.
树种相同，但工艺不同，纤维分离点也不相同。
Single olive tree species, Under the normal temperature a cold squeezing obtains. Acidity: 0.4%.
单一橄榄树种，常温下头道冷压榨获得。酸度0.4%。
In order to open a flower, it paid more than other tree species for a long time effort.
为了开一次花，它付出了比别的树种更长久的努力。
Combined with different growth rules, the different tree species growing in natural is simulated.
结合不同的生长规则，可模拟不同树种在自然环境中的生长形态。
Quercus variabilis is an important tree species for afforestation, which have great economic value.
栓皮栎是我国重要的造林树种，并且极具经济价值。
Quercus variabilis is an important tree species for afforestation, which have great economic value.
栓皮栎是我国重要的造林树种，并且极具经济价值。
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