东江湖水质营养状态的监测评价及预测

Monitoring Evaluation and Prediction of the Water Quality and Nutritional Status of Dongjiang Lake

通过对东江湖2013-2019年这7年的水质监测,人们发现,主要影响东江湖的水质营养状态因子为溶解氧、氨氮、总氮和总磷,水质基本为I类,呈现以年为周期的变化,东江湖总体为贫营养状态;东江湖水pH为中性偏碱性,是优质的水源,说明东江湖自净能力强。总体来看,开展水质评价与预测,对于有效开展东江湖水污染预防和治理具有重要指导意义。

Through the water quality monitoring of Dongjiang Lake from 2013 to 2019,people find that the main factors affecting the nutritional status of Dongjiang Lake water quality are dissolved oxygen,ammonia nitrogen,total nitrogen and total phosphorus,the water quality is basically Class I,showing annual changes,Dongjiang Lake is generally oligotrophic;the pH of Dongjiang Lake is neutral and alkaline,which is a high-quality water source,indicating that Dongjiang Lake has a strong self-purification ability.Overall,the development of water quality evaluation and prediction is of great guiding significance for the effective implementation of the prevention and treatment of Dongjiang Lake water pollution.