Abstract:

In order to explore math model for the water environmental capacity in nonpoint source polluted river and provide scientific basis for the rational use, the water environmental capacity in branch of Nonpoint Source Polluted River was studied, according to the pollution status of the typical river in the east of China-Cao’e River, Based on the flow characteristics and data of hydrological and pollution sources investigating and water quality data, water environmental capacity of every month was evaluated by using appropriate math model. The results showed that this method was simple, practical and applicable to the case of nonpoint source polluted river for studying water environmental capacity of NH4+-N, TP and CODcr.