【摘要】 为探讨汤村水库在汛期及非汛期库区的水质情况,根据汤村水库特点,建立了EFDC二维水质模型,模拟并分析了库区在水体交换期以及水体静止期化学需氧量（COD）及氨氮（NH₃-N）浓度空间变化特点,结果表明:①库区水环境容量随库容增大而增大,污染物浓度随库容增大而减小;②在水体静置期间随水体静止时间的增长,库区NH₃-N浓度的增幅远高于COD浓度的增幅;③汤村库区水体停留时间宜控制在26～30 d为宜,应通过对水库合理的调度运行,相机换水方可有效保证库区水质。研究结果可为汤村水库的调度运行及管理提供科学依据。更多还原

【Abstract】 In order to study the water quality of Tangcun reservoir during flood season and non-flood season,according to the characteristics of the Tangcun reservoir,the EFDC two-dimensional water quality model was established. The concentration of COD and NH₃-N in the water exchange period and static period were simulated and analyzed. The results showed that: ①The water environment capacity of reservoir area increased with the increase of storage capacity,contaminant concentration decreased with the increase of storage capacity; ② During the water static period,with the growth of water body time,the increase of NH₃-N concentration in the reservoir was much higher than the increase of COD concentration; ③ The water body residence time in Tangcun reservoir should be controlled at 26 ～ 30 d,The water quality of the reservoir could be effectively guaranteed by the reasonable operation of the reservoir. The research results can provide scientific basis for the dispatching operation and management of Tangcun Reservoir.更多还原