水文水质综合模型与城市小流域河流污染分析

针对城市小流域的特点,以西安市的皂河为例,考虑自然、水文特性以及人文社会各因素对流域产、汇流及河流水质的影响,构建了适合城市小流域的三层串联水箱模型、运动波模型以及一维河流水质模型相结合的一体化水文水质综合模型,模拟流域的径流过程及河流主要水质变化趋势.各项指标的模拟值与实测值趋势吻合较好,说明构建的综合模型可以较好地模拟城市小流域河流的水文水质变化趋势.借助模拟结果探明了皂河污染对渭河的影响,可为皂河最终排入渭河西安段的污染控制及管理提供依据.

Integrate model of hydrology and water quality and analysis of river pollution in small urban basins

A three layer-tank model is set up based on the hydrological and meteorological data of a small basin in Xi'an City,considering the influence of natural hydrological characteristics and other artificial factors on the runoff and water quality of the Zaohe River.Furthermore,the paper also combines kinetic wave and one-dimensional water quality model to coupling simulate the change of runoff and water quality,also compares the simulation with survey values.The results have showed that the integrate model is suitable for hydrology and water quality simulation in small basin.Using the integrate model,the pollution characteristic of the Zaohe River and its influence to the Weihe River are also analyzed.