【摘要】 以常州市河网为例,通过监测河网断面水文、水质数据,计算出新澡港河—大湾浜单一河道(29场)及河网(8场)场次降雨面源负荷。采用BP神经网络方法推算出新澡港河—大湾浜单一河道2013年面源总入河负荷。根据该单一河道和河网面源负荷的相关关系,推算河网2013年面源总负荷,其中2013年总氮、氨氮、总磷和COD面源总负荷分别为47.29t、29.13t、3.18t和516.88t。更多还原

【Abstract】 The water quality and hydrological condition of the control sections in Xinzaogang River and Dawanbang River（29 times）and the entire river network（8 times）in Changzhou were monitored.The non-point source load entered the Xinzaogang River,the Dawanbang River and the entire river network for each rainfall was also analyzed.Based on the BP neural network model,we predicted the annual non-point source pollutants for a single river of 2013.By analyzing the relationship of the non-point source pollution between a single river and the entire river network,the annual non-point source pollutant loads of 2013 for TN,NH₃-N,TP and COD were approximately 47.29 t,29.13 t,3.18 t and 516.88 t,respectively.更多还原