RESEARCH PROGRESS ON WATER PURIFICATION OF PLANTS IN CONSTRUCTED WETLAND

通过检索近20年来人工湿地植物在净化水质方面代表性文献,筛选出50种常见人工湿地植物,包括水生植物(挺水植物、浮水植物及浮叶植物、沉水植物)、湿生植物、旱生植物,对该50种常见植物的净化效能进行分析比较;指出湿地植物在净化水体时可能受物种、环境因子、种类配置模式三方面的影响;提出未来人工湿地植物选择应用方面发展方向为:应进一步扩大其种类的选择范围,加强探究维持其生长代谢的机理,加强与微生物的耦合作用完成水体污染物净化的效能研究,根据不同人工湿地和水体污染物类型进行配置等4个方面.In order to expound the specific effect on water purification of constructed wetland plants,50 different species of constructed wetland plants,including aquatic plants (emergent aquatic plants,floating (leaved) plants and submerged plants),hygrophytes and xerophytes,were selected out by retrieving representative literature on purification effect of constructed wetland plants in recent 20 years.The purification effect among these 50 different species of constructed wetland plants were analyzed and compared.Research results showed that,purifying effects of these plants were influenced by their own species,the environmental factors and the configuration of different species.Meanwhile,in the aspect of constructed wetland plants species option,further study should be carried out on the following aspects:Expanding species option,strengthening research on the mechanism of growth metabolism and the coupling with microbes to purify water,optimizing plant configuration according to wetland types and the main contaminations.国家水体污染控制与治理科技重大专项; 国家重点研发计划; 国家自然科学基金面上项目85-10,243