Advances in biogeochemical process in benthic boundary layer of estuarine and coastal area

The biogeochemical processes of benthic boundary layer in large river estuary and coastal area impact the transport and transformation of terrestrial materials and their seaward flux.It is the key problems of studies of land-ocean interaction,carbon sources and sinks in oceans and the nitrogen and phosphorus cycle.The advances and future outlook in research on biogeochemical process in benthic boundary layer of estuary and its adjacent sea area were analyzed and summarized with highlighting the features and functions of mobile muds in benthic boundary layer and the role of microorganisms in the biogeochemical processes therein.