摘要
介绍了近年来研究河口低氧区形成机理的水质模型,包括生化机理模型、物理机理模型以及生化机理和物理机理耦合模型。通过对这些模型应用实例结果的分析,揭示了河口低氧区产生的生化机理和物理机理:河口地区的人类活动所产生的大量污染物排放到水体当中以及夏季水体本身的物理特点,包括层化作用和适宜温度等,造成某些河口水体底层产生低氧区。
An introduction was given to the water quality models recently developed in recent years, including the physical model, the biochemical model, and the coupled physical-biochemical model. Based on the analysis of the application of the models, the physical mechanism and biochemical mechanism leading to the oxygen-depleted waters were demonstrated. It is concluded that the formation of the oxygen-depleted waters is related to the increase of the coastal nutrient supply and the physical characteristics of the water body in summer, such as the temperature and stratification.
出处
《水资源保护》
CAS
2004年第5期1-4,共4页
Water Resources Protection
基金
国家重点基础研究发展计划(973)预研(2001CCA01900)
关键词
河口
溶解氧
低氧区
水质模型
生化机理
物理机理
生态系统
estuary
dissolved-oxygen
water quality model
oxygen-depleted waters
biochemical mechanism
physical mechanism
ecological system
