森林能减少气候变化对濒危物种的影响_英语科普

森林能减少气候变化对濒危物种的影响

文章来源：未知文章作者：enread 发布时间：2013-11-02 06:24 字体： [大中小]　进入论坛

(单词翻译:双击或拖选)

Forests with dense¹ canopies² create a microclimate that protects a variety of cold-adapted plant species from warming air temperatures, a study has shown.

一项研究发现，拥有浓密树冠的森林能为一些低温植物创造一个没有热空气的小环境。

Researchers found plants that favoured cooler conditions fared better under dense canopies than in ones that were more open to the elements.

They added that these conditions could be a "critical mechanism³" in the conservation of forest plant diversity.

The findings appear in the Proceedings⁴ of the National Academy of Sciences.

A team of international researchers, headed by scientists from Belgium, noted⁵ that previous studies had shown that "biological signals of recent global warming" had been increasing across an array of ecosystems⁶.

"Around the globe, climate warming is increasing the dominance of warm-adapted species - a process described as 'thermophilisation'," they observed.

The team gathered data from vegetation survey from more than 1,400 plots in temperate⁷ forests across North America and Europe.

In each plot, they compared the results from an original survey with a repeated survey that was, on average, carried out 34.5 years later.

The results showed that there had been a sizeable turnover⁸, with about one-third of the species present in the original survey being replaced by other plants.

点击

收听单词发音

1 dense
a.密集的，稠密的，浓密的；密度大的
参考例句：
The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。 The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。

2 canopies
（宝座或床等上面的）华盖( canopy的名词复数 )；（飞行器上的）座舱罩；任何悬于上空的覆盖物；森林中天棚似的树荫
参考例句：
Golf carts with bright canvas canopies wandered the raingreen fairways. 一场雨后显得愈加葱绿的高尔夫球场草地上，散放着一些带有色彩缤纷的帆布华盖的高尔夫小车。 Rock permitted seven canopies, cornices floors, decorative glass, Ambilight, momentum magnificent, magnificent. 七檐佛殿背倚山岩，楼层飞檐翘角，殿顶琉璃装饰，流光溢彩，气势恢宏，蔚为壮观。

3 mechanism
n.机械装置；机构，结构
参考例句：
The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。 The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。

4 proceedings
n.进程，过程，议程；诉讼(程序)；公报
参考例句：
He was released on bail pending committal proceedings. 他交保获释正在候审。 to initiate legal proceedings against sb 对某人提起诉讼

5 noted
adj.著名的，知名的
参考例句：
The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。 Jim is noted for arriving late for work.吉姆上班迟到出了名。

6 ecosystems
n.生态系统( ecosystem的名词复数 )
参考例句：
There are highly sensitive and delicately balanced ecosystems in the forest. 森林里有高度敏感、灵敏平衡的各种生态系统。来自《简明英汉词典》 Madagascar's ecosystems range from rainforest to semi-desert. 马达加斯加生态系统类型多样，从雨林到半荒漠等不一而足。来自辞典例句

7 temperate
adj.温和的，温带的，自我克制的，不过分的
参考例句：
Asia extends across the frigid,temperate and tropical zones.亚洲地跨寒、温、热三带。 Great Britain has a temperate climate.英国气候温和。

8 turnover
n.人员流动率，人事变动率；营业额，成交量
参考例句：
The store greatly reduced the prices to make a quick turnover.这家商店实行大减价以迅速周转资金。 Our turnover actually increased last year.去年我们的营业额竟然增加了。

上一篇：全球变暖将影响旱地的土壤营养平衡下一篇：液压采气对公众健康影响很小