For example, he discussed how having huge amounts of sediment build up behind DAMS has resulted in a lack of sediment in coastal areas.

例如，他讨论了水坝背后堆积的大量泥沙如何导致了沿海地区泥沙的匮乏。

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Scientists think such inverted craters form when an impact basin fills with sediment and the material around that sediment gets eroded away.

科学家们认为，当撞击盆地被沉积物所填满，而沉积物周围的部分逐渐被侵蚀殆尽时，就会形成了类似这样的颠倒陨石坑。

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Over 700 million tons of sediment are deposited into the Yangtze annually, making it the fourth largest sediment carrier in the world.

长江每年下泄近7亿吨泥沙，全世界排名第四。

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This was a key driver for the establishment by UNESCO International Hydrological Programme (IHP) of the global International Sediment Initiative (lSI), and for the creation of the European Sediment Network (SedNet) funded by EC DG-Research under the 5th RTD Framework Programme as a Thematic Network.

UNESCO: OFFICE IN VENICE

Within the implementation of the Framework Agreement on the Sava River Basin (FASRB), the Sava countries drafted the Protocol on Sediment Management to the FASRB, to provide a legal basis for future cooperation of the countries on the development of the Sediment Management Plan for the Sava River Basin (Sava SM Plan).

UNESCO: OFFICE IN VENICE

Sediment cores from Lake Malawi in southern Africa show colder weather from 1570 to 1820.

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