The research progress of earth surface process and silicon output was reviewed. It is the key problems of studies of landocean interaction, material cycling in the world. The advances and future outlook in research on silicon biogeochemical process in the land was analyzed and summarized with highlighting the phytolith in the land. Reservoir process and eutrophication change  the riverine biogeochemistry process, which result in a serial of impacts on downstream and estuary. Comprehensive studies considering natural, human and biological processes as well as their interactions at the scale of drain basin are necessary to make up the silica balance and to couple terrestrial processes with silicon cycle of fluvial or marine biogeosystems.