Put forward the idea and framework of “land-ocean-human interactions” in intensively developing coastal zone.

Discussion in three main contexts by using case studies in the western Bohai Sea, China:

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Coastline changes and its impacts to marine hydrodynamics (Bohai Bay)

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Reasons and results of estuarine and coastal environmental changes (Yellow River estuary and Jinzhou Bay)

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Relative sea level rise and its risk (Tianjin Binhai New Area)

•The cases studies demonstrate that L-O-H interactions exist and greatly impact on natural systems.