Department of Environmental Monitoring;
Changsha Environmental Protection College;
Changsha 410007;
Hunan;
China;
Key Laboratory of Agro-ecological Processes in Subtropical Regions;
Institute of Subtropical Agriculture;
Chinese Academy of Sciences;
Changsha 410125;
Hunan;
China;
School of Materials Science and Engineering;
Central South University of Forestry and Technology;
Changsha 410004;
Hunan;
China;
IGM(0; N)model; single factor evaluation; estuarine water quality;