organic nitrogen
5.This course demonstrate the important sorts of wastewater analysis, it includes chemical oxygen demand (COD), biochemical oxygen demand (BOD), suspended solids (SS), volatile suspended solids (VSS), ammonia nitrogen, organic nitrogen, nitrite nitrogen, nitrate nitrogen, orthophosphate, total phosphate, sulfate, and sulfide.
7.The carbon (C) and N originating from litters might take different pathways during decomposition and be either incorporated in stabilized (remaining) soil organic matter, released as CO_2 and N_2O or transported to the mineral soil as dissolved organic carbon (DOC), dissolved organic nitrogen (DON) and dissolved inorganic nitrogen (DIN).
8.Abstract: Mainly reviewed distribution of organic nitrogen, early diagenesis (such as counteract-eutrophication, nitrification/ denitrification et al.), the controlling factors of nitrogen cycling; and the relationship between nitrogen and ecological system in sediments in recent years, which may contribute to research the nitrogen marine biogeochemical process.

