Water sediment (sediment) is an important part of the rivers, lakes and other natural water ecosystems, and it's also a significant integral link of material cycle in water ecosystem.

水体底泥？(沉积物)是河流、湖泊等自然水体生态系统的重要组成部分，也是水体生态系统物质循环中的一个重要环节。

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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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