湿地中的藻类生态学研究进展

A review on algae ecology in wetland.

从湿地中藻类的种群结构、藻类在湿地中的功能、湿地中的藻类生产力及其影响因素等方面综述了天然湿地中的藻类生态学研究进展 .湿地植物区系主要有附泥藻类、附植藻类、后周丛藻类和浮游植物4种类型 ,其中常见的是附泥藻类的硅藻、绿藻和蓝藻 .藻类最显著的作用是作为湿地食物网中的初级生产者 ,也作为湿地环境污染的生物指示物 .影响藻类生产力的因素有水力学因素、营养、温度、光、大型植物及草食动物和其它动物 .未来对藻类的研究应侧重于湿地藻类生物多样性、藻类生物量、生产力、种群组成的环境控制及其相互关系 ,以及藻类作为水环境及湿地污染程度指标的研究 ,“基因治藻”

The research advance in algae ecology in wetland was introduced in this paper,which included the algae population structure and its function,and the algae productivity and its affecting factors. Almost all kinds of algae occured in wetland,including four assemblages: epipelon, epiphyton, metaphyton and phytoplankton, among which, diatom, green and blue algae were the predominant species. Algae were the fundamental players in the physical, chemical and biological processes that characterized wetland ecosystems. Most obvious was their role as primary producers and their place in the wetland food web. Algae were an important food resource for herbivores, and contributed to wetland nutrient cycle as the sources of dissolved organic matter and N. They could also be used as biomarkers for monitoring environment pollution. The affecting factors on algae's productivity were hydraulic factor, nutrition, temperature, illumination,herbivores and some other animals,and so on. Because of their functions in wetland, future research on algae in wetland should expand our knowledge of the environmental controls on algal biomass, productivity, and species composition in wetlands, with particular in areas for which knowledge was incomplete. Included among these,may be a detailed evaluation of the proportionate contributions by epipelon, epiphyton, metaphyton, and phytoplankton to food web dynamics in wetlands,and a further study of the genetic technique in controlling hazardous algae.