Abstract: Water quality is regularly observed in the Poyang Lake Wetland Observation and Research Station of the Chinese Academy of Sciences. The dataset reported in this paper was sampled in January, April, July and October from 2013–2018. We described the procedure and methods of water sampling, laboratory tests and data quality control. This dataset reflects the seasonal and interannual changes of water quality in Poyang Lake in recent years, and may be valuable for scientific research, and decision-making support for lake water environmental management. The dataset includes physical and chemical parameters. Physical parameters are measured on the spot by portable water quality analyzer. Chemical parameters of total nitrogen, total phosphorus, ammonia nitrogen, etc. are measured by Shimadzu UV-2450 UV spectrophotometer, and CODMn by acid burette titration.
Keywords: Poyang Lake; water environment; datasets; physical and chemical parameter