College of Eco-Environmental Engineering;
Guizhou Minzu University;
Guiyang 550025;
China;
Research Center for Environmental Ecology and Engineering;
School of Environmental Ecology and Biological Engineering;
Wuhan Institute of Technology;
Wuhan 430205;
China;
The karst environmental geological hazard prevention laboratory of Guizhou Minzu University;
Guiyang 550025;
China;
Key Laboratory of Reservoir Aquatic Environment;
Research Center for Ecohydrology;
Chongqing Institute of Green and Intelligent Technology;
Chinese Academy of Sciences;
Chongqing 400714;
China;
Dissolved organic matter(DOM); Sequential biodegradation; Recalcitrant compounds; Component and fate; Fluorescence analysis;