它们大多数在后滨带。

Most of them are in subterrestrial zone.

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为了有效地防止官厅水库流域的非点源污染，必须加强水库流域的农业管理和库岸库滨带的科学建设与管理。

The watershed management strategies of Guanting Reservoir should focus on the agriculture supervision and the management of riparian buffer strips.

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泥沙滩区分为：盐碱植物-滨螺带和招潮蟹-大眼蟹带；

There are two zones in the belt of sand-mud beaches: The halophyte-Littorina zone and Uca-Macropthalmus zone.

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