摘要
水体中磷元素的含量是影响藻类生长的重要因子,来源可分为外源性磷和内源性磷.在外源性磷得到有效控制的情况下,内源性磷成为湖泊水体中磷元素的主要来源。而底泥磷的释放是内源性磷的主要组成。影响底泥磷释放的因素很多,首先与底泥的物理化学组成有关,如底泥颗粒物的粒径、有机质和氧化物的含量以及底泥中磷的形态等,再则与各环境因子的影响关系也非常密切,溶解氧、温度、pH值、扰动是其主要的环境影响因子.对富营养水体底泥释放的影响因素及其机理研究可为富营养化水体的治理提供理论依据。
The content of phosphorus in waters is an important factor that affects the algae＇s growth, the source of phosphorus comes from external phosphorus and internal phosphorus. When the external phosphorus is under effective control, the internal phosphorus will become the mainly source of phosphorus in lake water. The phosphorus released from sediments is the mainly component of the internal phosphorus. Lots of factors can affect the release of phosphorus. First, it is relative to the sediments physical and chemical component, such as the radius of sediments grain, the content of organic matter and oxide and the forms of phosphorus. It is also relative to the environmental factors, for example, such as pH, DO, organism, temperature and turbulence. Study on the affecting factors and its mechanism of sediments phosphorus release in eutrophic water can provide theoretical basis to the treatment of eutrophic lakes.
出处
《环境科学与管理》
CAS
2008年第6期43-46,共4页
Environmental Science and Management
关键词
底泥
磷释放
环境因子
sediments
phosphorus release
environmental factors
