Amazing China：47. 沙漠的守护神-胡杨

《美丽中国》是第一部表现中国野生动植物和自然人文景观的大型电视纪录片，是中国中央电视台（CCTV）和英国广播公司（BBC）第一次联合摄制的作品。

影片从长江以南的稻米之乡开始，到酷热的西双版纳雨林，极寒的珠穆朗玛峰，中国的标志长城，中华文化发源地黄河流域以及蜿蜒曲折的1.8万公里海岸线等。

《美丽中国》曾荣获第30届“艾美奖新闻与纪录片大奖”最佳自然历史纪录片摄影奖、最佳剪辑奖和最佳音乐与音效奖。

来源：CGTN

Populus Euphratica is the only tree species to be found in the desert of North China.

胡杨是中国北方沙漠里唯一的乔木树种。

In Ejina in the west of Inner Mongolia, there's a Populus Euphratica.

在内蒙古西部的额济纳有一颗胡杨树。

As the oldest tree in this Populus Euphratica forest, it's been guarding this place for more than 800 years.

作为这片胡杨林里最古老的一颗它守护这个地方已有800多年。

The locals call it the "sacred tree".

当地人把它称作神树。

Dinosaurs died out about 65 million years ago.

大约6500万年前恐龙灭绝。

Then a new species appeared along the ancient Mediterranean Sea.

之后一个新的物种在古地中海沿岸陆续出现。

That's the Populus Euphratica.

这就是胡杨。

Seasonally flooded river beds in the Gobi desert are perfect for the Populus Euphratica.

戈壁上的河水漫灌最利胡杨的生长。

Where there is water, the Populus Euphratica grows.

水流到哪里胡杨就生长到哪里。

Populus Euphratica loves water, but it also highly resistant to drought.

胡杨喜水却也有极强的抗旱能力。

As long as the groundwater is at least 4 meters below, Populus Euphratica can live comfortably.

只要地下水不低于4米胡杨就能生活得自在。

If the groundwater level drops below 9 meters, it will die.

当地下水位低于9米它才会枯死。

Because the course of desert rivers changes frequently, Populus Euphratica has left its mark across the desert.

由于沙漠河流变迁频繁胡杨在沙漠中留下了曾经驻足得痕迹。

It acts as a good windbreak, prevents sand erosion, and is salt resistant.

它有着极强的防风固沙和耐盐能力。

An adult Populus Euphratica can discharge tens of kilograms of salt and alkali every year.

一株成年胡杨每年能排出数十千克的盐碱。

When the wind is blocked, the sand is fixed, and the soil is improved.

当风被挡住飞沙被固定土壤被改良。

So the ecological environment of Ejina is protected.

额济纳的生态环境也就被牢牢地守护着。

To the south of the Populus Euphratica forest in Ejina, lies Badain Jaran, the third largest desert in China.

在额济纳胡杨林的南边是中国第三大沙漠巴丹吉林。

Without this 260 square kilometer Populus Euphratica forest, the Badain Jaran Desert, already 49,200 square kilometers in size, would spread northward, squeezing the living space of humans.

如果没有这片260平方千米的胡杨林总面积49200平方千米的巴丹吉林沙漠就会向北扩散挤压人类的生存空间。

These Populus euphratica trees form a golden natural barrier, guarding the ecology of Ejina year after year, for another 800 years.

一棵棵胡杨用身体构筑起金色的天然屏障守护着额济纳的生态一个又一个800年。

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