Four fifths of China's water is in the south, notably the Yangzi river basin.

中国五分之四的水资源位于南方，尤其是长江流域。

Still, half of all international river basins lack any cooperative management framework. That must change.

不过还有近一半的国际河流流域缺少合作管理框架，必须对此做出改变。

Around the river basin, archaeologists have also uncovered dozens of human artifacts dating back thousands of years.

在该流域附近，考古学家也发现了许多能追溯至几千年前的人类遗迹。

That said, the challenges facing the commission and the river basin nations are greater than ever before.

尽管如此，委员会和流域各国面临的挑战比以前任何时候都要大。

Currently, Amazon river dolphins can still be found in large numbers across South America's huge Amazon and Orinoco river basins.

目前，在南美洲巨大的亚马逊河和奥里诺科河流域仍能发现大量的亚马逊河海豚。

And that the way to manage the river basin is only through engineered solutions and not taking account for indigenous knowledge systems.

管理流域的方法仅仅是通过工程解决方案，而没有考虑到当地的知识体系。

This is the largest undeveloped river basin on the planet, spanning an area larger than California.

这是地球上最大的未开发流域，面积比加利福尼亚还大。

In fact, the greater Mississippi river basin has more kilometers of navigable internal waterways than the entire rest of the world all combined has.

事实上，大密西西比河流域的内河通航里程比世界其他地区的总和还要长。

Because by entering the Mississippi here, you can travel throughout almost the entirety of the North American interior by way of the Mississippi river basin.

因为从这里进入密西西比河，你就可以通过密西西比河流域穿越几乎整个北美内陆。

And while the Army Corps of Engineers has been dredging or excavating portions of the river's basin to make a path for boat traffic to keep flowing.

同时，美国陆军工程兵团一直在疏浚和挖掘河流流域的部分地区，为船只运输开辟一条新的通道。