摘要:Subsurface discharge of water from coastal aquifers, called submarine groundwater discharge (SGD), has been recognized as an important component of hydrological cycle. This discharge includes meteoric water from land drainage as well as sea water that has entered coastal aquifers. We follow Burnett et al. (2003) in defining submarine groundwater discharge as any and all flow of water on continental margins from the seabed to the coastal ocean, regardless of fluid composition or driving force.