新闻
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China

【第三极大科考】第二次青藏高原综合科考研究启动 首轮江湖源科考取得多项成果

2017-08-19 21:31:16   央广网

在刚刚结束的“江湖源科考”中,四支科考队在两个月里取得多项重要成果,包括钻取了西藏第一大湖色林错目前最长的湖芯;获取色林错的最新水量,40年相当于增加了一个三峡水库;钻取4根唐古拉山脉的冰芯,在藏北发现了超级化石群和最古老的高原内部人类定居区等。

西藏第一大湖色林错 年增水量8亿立方米

通过湖泊测量与水文分析,科学家发现,从2005年到2017年,色林错湖年均入湖径流量22亿立方米,年增水量8亿立方米,是青藏高原扩张最快的湖泊,2009年左右成长为西藏第一大湖。目前湖面面积已达2381平方公里,湖水总容量630亿立方米,相较于1976年340亿立方米的容量,相当于增加了将近一个三峡水库的水量。

中科院青藏高原研究所所长 姚檀栋:扩张的原因,我们以前认为是降水可能起到主要的作用,现在看来是冰川融化可能起着更加重要的作用。所以它这个湖是稳定地在扩张,而且会越来越大,对于整个的生态保护,我们完全面临着新的挑战,通过建国家公园,就是应对这个挑战最好的方式和保障。

湖芯和冰芯,是研究气候环境变化的密码,记录着青藏高原过去数千年乃至几十万年的气候环境变化。在色林错湖畔大营,湖泊与水文科考队用一个月时间钻取了两根湖芯,最长的10米,这也是目前我国科学家在色林错钻取的最长湖芯,它的年代还在进一步研究中。而在唐古拉山冰川海拔5650米的冰芯钻取点,科考队克服冰裂隙和冰湖等重重困难,钻取了4根冰芯。科考还发现了最丰富的地球冰川景观与状态稳定的普若岗日冰原。

藏北发现旧石器时代古人类遗址

此外,科学家们还在藏北发现了旧石器时代的古人类遗址20多处,遗址年代为距今1.5万年到6千年左右,出土了大量夹砂陶片、打制石器和石制品。

中科院青藏高原研究所所长 姚檀栋:说明这个地方人类是生生不息,一直在这个土地上不断地耕耘,不断地生息。(央视记者 陈琴 汪成健 扎旺 益西)

上一页2/2下一页
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China

相关阅读

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170819/31132937_2.html
Server: cms-8-252
Date: 2024/11/28 14:17:23

Powered by China
China