珠江三角洲污染物对东四口门通量影响分析

Effects of Discharged Pollutants from Pearl River Delta on East Outlets

利用珠江三角洲河网区水量数学模型 ,根据 196 8年 (丰水年 )、1976年 (平水年 )、1982年 (枯水年 )的水文资料 ,计算了各典型年落潮时珠江三角洲河网区各节点的分流比 ;采用 1995年珠江三角洲各主要河道纳污量资料 ,综合考虑落潮条件下的污染物迁移过程 ,估算了污染物在河道中的降解量 ;根据各节点 (汊点 )的分流比及污染物降解量 。

An hydrodynamic model for river networks of the Pearl River Delta is used to calculate the flow distribution ratio of channels around the junction of the Pearl River Delta during ebb tide.Based on the discharged pollutants and hydrodynamic data (including flood,mean,and dry periods),the effects of the discharged pollutants from the Pearl River Delta on East Outlets are calculated and analyzed,and the pollutant decay effects along the river are also considered.