School of Environmental and Chemical Engineering Zhaoqing University Zhaoqing 526061 ChinaGuangdong Key Laboratory of Environmental Health and Resource Utilization Zhaoqing 526061 China;
School of Environmental and Chemical Engineering Zhaoqing University Zhaoqing 526061 China;
School of Environmental and Chemical Engineering Zhaoqing University Zhaoqing 526061 China;
School of Environmental and Chemical Engineering Zhaoqing University Zhaoqing 526061 China;
Xiawan Reservoir; Water environment quality; Investigation and evaluation;