Author_Institution :
Key Lab. of Poyang Lake Environ. & Resource Utilization Minist. of Educ., Nanchang Univ., Nanchang, China
Abstract :
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
An ensemble of physico-chemical parameters was investigated to assess the quality of Poyang Lake. The parameters investigated include pH; electrical conductivity, EC; total dissolved solid, TDS; dissolved oxygen, DO; Eh; and nitrate nitrogen, nitrite nitrogen, ammonia nitrogen, total nitrogen, total phosphorus, sulfate, and phosphate concentrations. Also monitored were the concentrations of sodium, calcium, potassium, magnesium, chloride, bicarbonate. The results showed that sodium is the major cation and bicarbonate is the major anions in the water. As a result of this, the type of the hydrochemistry is Na-HCO3, which is different from that of the hydrochemistry of the water (Ca-HCO3) collected in 1990s. Nitrate nitrogen dominated in the forms of nitrogen in Poyang Lake, most of those came from Ganjiang River water. The concentrations of nitrogen and phosphorous are highest at upstream, and were lowest at midstream. Water at upstream is mainly affected from its tributaries of the Raohe River and Ganjiang River, mainly by the human activities at downstream.
Keywords :
calcium; chlorine; electrical conductivity; hydrogen compounds; lakes; magnesium; negative ions; nitrogen; nitrogen compounds; oxygen; pH; phosphorus; phosphorus compounds; positive ions; potassium; rivers; sodium; sulphur compounds; water quality; Ca+; China; Cl-; Ganjiang River water; HCO3-; K+; Mg+; N; NH3; NO2-; NO3-; Na+; P; PO43-; Poyang Lake hydrochemistry; Poyang Lake nutrient distribution; Poyang Lake quality assessment; Raohe River; SO42-; ammonia nitrogen concentration; bicarbonate concentration; calcium concentration; chloride concentration; dissolved oxygen; electrical conductivity; magnesium concentration; nitrate nitrogen concentration; nitrite nitrogen concentration; pH; phosphate concentration; physicochemical parameters; potassium concentration; sodium concentration; sulfate concentration; total dissolved solid; total nitrogen concentration; total phosphorus concentration; Area measurement; Cities and towns; Humans; Lakes; Nitrogen; Rivers; Water pollution;
