基于二元水循环的水量-水质-水效联合调控模型开发与应用

Development and application of the water amount,quality and efficiency regulation model based on dualistic water cycle

为将我国最严格水资源管理制度的实践与二元水循环理论相结合,提高"三条红线"控制指标的科学性与合理性,本文以SWAT模型为基础,通过改进子流域划分方法、添加经济社会模块和人工用水模块,对其人工侧支循环模拟进行了系统的完善,开发了基于SWAT的水量-水质-水效联合调控模型SWAT_WAQER。以广西南流江流域为例,从国民经济用水量、河道径流与水质等方面对模型进行校验,并在此基础上划分了2030年"三条红线"控制指标。结果表明:该模型性能良好,能够用于不同节水情景下的国民经济用水量、污染物排放量、水功能区水质达标结果分析,可以作为科学制定"三条红线"控制指标的有力支撑工具。

In order to combine the practice of the most stringent water resources management system with the dualistic water cycle theory,and improve the scientificity and rationality of the"Three Red Lines"indicators,the water amount,quality and efficiency regulation model SWAT_WAQER is developed on the basis of SWAT by improving watershed subdivision method,adding the economic-social module and water use module,which systematically perfects the function of the social water cycle simulation for the SWAT model.The model is calibrated and validated by the observed water use for economic development,river runoff and water quality in the Nanliu River catchment in Guangxi Zhuang Autonomous Region,and the"Three Red Lines"indicators in 2030 are determined.The results show that the model has a good performance and can be used to analyze the water consumption for economic development,pollutant emission amount and the water quality reaching standard for water functional zones under different water-saving scenarios.The SWAT_WAQER model is a useful tool for scientifically setting the"Three Red Lines"indicators.