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我们所在的亚洲地区是一块非常适合人类居住的富饶之地,仅举东亚和南亚16国(巴基斯坦、印度、缅甸、泰国、菲律宾、中国、朝鲜、日本等),其土地面积仅占全球陆地面积的1/9,但却养育着全球一半以上的人口。然而,就在2千多万年前,亚洲的绝大部分地区还是干旱草原与荒漠气候,与今日的环境有天壤之别。是什么使2千多万年前的“荒漠之地”变成今日的“富饶之地”?其决定性因素就是青藏高原的隆升,目前,这已成为地学界的共识。下面我们就沿着时间的轨迹,追溯青藏高原的隆升史以及周边气候环境的演变史。
The Asian region we live in is a very fertile land that is very suitable for human habitation. Taking the 16 East Asian and South Asian countries (Pakistan, India, Myanmar, Thailand, Philippines, China, North Korea and Japan) as their only land area, 1/9, but raising more than half of the world’s population. However, just over 20 million years ago, much of Asia was still arid and desert climate, which is quite different from today’s environment. What makes the “desert land” more than 20 million years ago turned into the “fertile land” today? The decisive factor is the uplift of the Qinghai-Tibet Plateau. At present, this has become the consensus of the geosciences. Here we follow the trajectory of time, trace the uplift of the Qinghai-Tibet Plateau and the evolution of the surrounding climate and environment history.