徐州市云龙湖水质监测与评价

The Water Quality Monitoring and Evaluation of Yunlong Lake in Xuzhou City

以云龙湖东西两湖区为对象,研究其不同功能区水质状况.在云龙湖东湖、西湖区各设置3个采样点,监测水体中总氮、总磷、高锰酸盐指数、氨氮、溶解氧和透明度指标;分别使用模糊识别法和特里指数法对水体进行水质评价与富营养化评价.评价结果表明:云龙湖水质级别为Ⅲ类,其中TN、TP超标明显,水体已呈现轻度富营养化;不同功能区水质差异明显,东湖区水质优于西湖区,云龙湖功能区划分对水体有显著影响.

Regarding eastern and western areas of Yunlong Lake as research objects,the authors have conducted a research on the water quality of them.Three sampling points were set in the eastern and western parts respectively.TN,TP,CODMn,DO,SD and NH3-N were monitored to evaluate the level of water quality.Fuzzy pattern recognition theory and TLI index were adopted to evaluate the water quality and eutrophication.The results of evaluation show that the water quality of Yunlong Lake is of Ⅲ,which means the lake is in the state of eutrophication.So the functional classification had obvious impact on water quality.