Assimilative capacity of the Qiantang River watershed based on a QUAL2K model
基于QUAL2K模型的钱塘江流域安全纳污能力研究

The capacities of the main stream of the Qiantang River and its primary tributary to assimilate BOD were studied using two theoretical scenarios. Scenario 1 was based on a QUAL2K model, while Scenario 2 was based on a 1-D model. The BOD assimilative capacity calculated on the basis of the QUAL2K model was larger than that of the 1-D model. The m value assimilative capacity method based on the QUAL2K model is suitable for the Qiantang River watershed, as it integrates Total Maximum Daily Load with pollutant concentration control. The total BOD assimilative capacity, calculated according to district in the Qiantang River watershed, decreased in the following order: Hangzhou>Jinhua>Quzhou>Shaoxing>Lishui.